This document provides answers to exam questions about mobile device operating systems, security features, and networking. It includes 15 multiple choice questions about topics like:
- Location data sources used by locator apps
- Differences between iOS and Android
- Purposes of passcode locks on mobile devices
- Commands used to backup and store files in Linux
- Methods for removing restrictions from mobile OSs like rooting and jailbreaking
- Safe sources for downloading Android apps like Google Play
IT Essentials (Version 7.0) - ITE Chapter 14 Exam AnswersITExamAnswers.net
A level one call center technician's primary responsibility is to enter a customer's problem into a ticketing system in a concise manner. Issues typically escalated to a level two technician include those that require installing drivers, applications, or operating systems. When dealing with an angry customer, a technician should listen without interrupting, show sympathy, and apologize for any inconvenience while avoiding explanations or putting the customer on hold.
IT Essentials (Version 7.0) - ITE Chapter 7 Exam AnswersITExamAnswers.net
This document provides the answers to 44 multiple choice questions related to IT Essentials (ITE v6.0 + v7.0) Chapter 7 exam. The questions cover topics such as cleaning and maintaining laptops, common laptop components, mobile device connectivity methods, troubleshooting laptop issues, laptop storage and memory, mobile device operating systems, and mobile technologies.
IT Essentials (Version 7.0) - ITE Chapter 11 Exam AnswersITExamAnswers.net
This document provides the answers to exam questions for IT Essentials (ITE v6.0 + v7.0) Chapter 11. It includes 30 multiple choice questions covering topics like Windows file systems, control panel functions, Internet Explorer configuration, Windows events, RAID levels, boot issues, Active Directory group policy, and Windows file sharing options. The answers are meant to help students prepare for the ITE v6.0 + v7.0 Chapter 11 exam.
IT Essentials (Version 7.0) - ITE Chapter 10 Exam AnswersITExamAnswers.net
The document provides answers to 33 questions about computer networking and operating systems. It covers topics like user interfaces, Windows account types, file systems, partitions, boot processes, and tools for migrating user files and settings between computers like the User State Migration Tool. For each question, it lists multiple choice answers and provides a short explanation of the correct answer.
IT Essentials (Version 7.0) - ITE Chapter 6 Exam AnswersITExamAnswers.net
The document provides exam answers for IT Essentials (ITE v6.0 + v7.0) Chapter 6. It includes explanations for 24 multiple choice questions covering topics like wireless networking issues, DHCP, static IP addressing, IPv6 addressing and compression, and network troubleshooting steps. Some key issues addressed are weak wireless signals, DHCP server faults, default gateway problems, and IP address conflicts.
IT Essentials (Version 7.0) - ITE Final Exam AnswersITExamAnswers.net
This document provides the answers to an IT Essentials (ITE v6.0 + v7.0) final exam. It includes 33 multiple choice questions about topics like ESD safety, motherboard components, RAM installation, hard drive connections, BIOS functions, and basic networking concepts. Each question is followed by an explanation of the correct answer. The document aims to help students and beginners learn and test their knowledge of fundamental PC hardware and networking topics covered in the ITE certification exam.
IT Essentials (Version 7.0) - ITE Chapter 1 Exam AnswersITExamAnswers.net
This document provides answers to exam questions for IT Essentials (ITE v6.0 + v7.0) Chapter 1. It includes 40 multiple choice questions and answers about computer hardware components, memory types, storage devices, ports, and other topics. Some sample questions covered are about recommending devices like styluses or scanners for customer needs, characteristics of memory types, and components of computer systems like chipsets and power supplies.
IT Essentials (Version 7.0) - ITE Chapter 5 Exam AnswersITExamAnswers.net
This document provides answers to exam questions for IT Essentials (ITE v6.0 + v7.0) Chapter 5. It includes 39 multiple choice questions and answers about networking devices, media, protocols, and standards. Key topics covered include switches, routers, wireless access points, Ethernet cabling, TCP/IP model, Wi-Fi standards, and common network ports.
IT Essentials (Version 7.0) - ITE Chapter 14 Exam AnswersITExamAnswers.net
A level one call center technician's primary responsibility is to enter a customer's problem into a ticketing system in a concise manner. Issues typically escalated to a level two technician include those that require installing drivers, applications, or operating systems. When dealing with an angry customer, a technician should listen without interrupting, show sympathy, and apologize for any inconvenience while avoiding explanations or putting the customer on hold.
IT Essentials (Version 7.0) - ITE Chapter 7 Exam AnswersITExamAnswers.net
This document provides the answers to 44 multiple choice questions related to IT Essentials (ITE v6.0 + v7.0) Chapter 7 exam. The questions cover topics such as cleaning and maintaining laptops, common laptop components, mobile device connectivity methods, troubleshooting laptop issues, laptop storage and memory, mobile device operating systems, and mobile technologies.
IT Essentials (Version 7.0) - ITE Chapter 11 Exam AnswersITExamAnswers.net
This document provides the answers to exam questions for IT Essentials (ITE v6.0 + v7.0) Chapter 11. It includes 30 multiple choice questions covering topics like Windows file systems, control panel functions, Internet Explorer configuration, Windows events, RAID levels, boot issues, Active Directory group policy, and Windows file sharing options. The answers are meant to help students prepare for the ITE v6.0 + v7.0 Chapter 11 exam.
IT Essentials (Version 7.0) - ITE Chapter 10 Exam AnswersITExamAnswers.net
The document provides answers to 33 questions about computer networking and operating systems. It covers topics like user interfaces, Windows account types, file systems, partitions, boot processes, and tools for migrating user files and settings between computers like the User State Migration Tool. For each question, it lists multiple choice answers and provides a short explanation of the correct answer.
IT Essentials (Version 7.0) - ITE Chapter 6 Exam AnswersITExamAnswers.net
The document provides exam answers for IT Essentials (ITE v6.0 + v7.0) Chapter 6. It includes explanations for 24 multiple choice questions covering topics like wireless networking issues, DHCP, static IP addressing, IPv6 addressing and compression, and network troubleshooting steps. Some key issues addressed are weak wireless signals, DHCP server faults, default gateway problems, and IP address conflicts.
IT Essentials (Version 7.0) - ITE Final Exam AnswersITExamAnswers.net
This document provides the answers to an IT Essentials (ITE v6.0 + v7.0) final exam. It includes 33 multiple choice questions about topics like ESD safety, motherboard components, RAM installation, hard drive connections, BIOS functions, and basic networking concepts. Each question is followed by an explanation of the correct answer. The document aims to help students and beginners learn and test their knowledge of fundamental PC hardware and networking topics covered in the ITE certification exam.
IT Essentials (Version 7.0) - ITE Chapter 1 Exam AnswersITExamAnswers.net
This document provides answers to exam questions for IT Essentials (ITE v6.0 + v7.0) Chapter 1. It includes 40 multiple choice questions and answers about computer hardware components, memory types, storage devices, ports, and other topics. Some sample questions covered are about recommending devices like styluses or scanners for customer needs, characteristics of memory types, and components of computer systems like chipsets and power supplies.
IT Essentials (Version 7.0) - ITE Chapter 5 Exam AnswersITExamAnswers.net
This document provides answers to exam questions for IT Essentials (ITE v6.0 + v7.0) Chapter 5. It includes 39 multiple choice questions and answers about networking devices, media, protocols, and standards. Key topics covered include switches, routers, wireless access points, Ethernet cabling, TCP/IP model, Wi-Fi standards, and common network ports.
IT Essentials (Version 7.0) - ITE Chapter 3 Exam AnswersITExamAnswers.net
The document provides answers to exam questions about computer hardware, operating systems, and networking. It covers topics like RAID configurations, BIOS, hardware components, and troubleshooting issues. The questions and explanations discuss concepts like the minimum number of drives needed for different RAID levels, components replaced during motherboard upgrades, and how the BIOS and POST work.
The document contains a practice exam for CCNA 1 with multiple choice questions about networking concepts. It covers topics like the OSI model, TCP/IP, IPv4 and IPv6 addressing, routing, switching, and troubleshooting. An example question asks which layer of the OSI model would format data as shown in an exhibit. The correct answer is the data link layer.
CSS L16 - IP ADDRESSING
Learning Competencies
After this learning module the students will be able to . . .
◦○Learn and discuss network addressing, switching and routing.
◦○Identify and understand the IP Addressing format
◦○Understand the explain the Network address translation and IPv6
It essentials pc hardware and software overviewAhmed Sultan
The document provides an overview of the IT Essentials: PC Hardware and Software course, which teaches students practical knowledge of how computers work and helps prepare them for CompTIA A+ certification. The course is divided into two parts covering fundamentals and advanced topics related to hardware, software, networking, security and troubleshooting. It utilizes virtual learning tools and Cisco Packet Tracer activities to provide hands-on experience for students pursuing careers in IT.
This document provides an overview of operating systems and covers topics such as the characteristics, basic functions, types, installation, and customization of operating systems. It discusses desktop and network operating systems like Windows, Mac OS, and Linux. The document explains how to select an operating system based on customer needs, install and upgrade operating systems, set up user accounts, and navigate the Windows desktop interface. It also covers operating system directories, files, virtualization, and troubleshooting techniques.
The document provides step-by-step instructions for installing the Windows XP operating system. It describes inserting the Windows XP CD-ROM, going through the initial MS-DOS setup screens, selecting installation options such as disk partitioning and file system, entering registration information like the product key, and completing the installation process which includes setting up user accounts. Upon finishing, the user is prompted to log into Windows XP for the first time.
The 7-page document provides instructions for setting up IP addresses and configuring the firewall settings for a server and client computer. It includes specifying static IP addresses, subnet masks, default gateways and DNS servers for both computers. The steps also describe using the ping command to test connectivity and troubleshooting firewall issues that could cause timeout errors. Configuring the firewall to allow connectivity between the server and client computers is necessary to proceed with further network activities.
1. Un lector de tarjetas multimedia es necesario para usar un dispositivo de almacenamiento flash compacta en un ordenador portátil.
2. La causa más probable de que el cursor se mueva solo a veces cuando un usuario teclea en un ordenador portátil es que el usuario está rozando la superficie táctil mientras escribe.
3. USB se considera una tecnología plug and play en un ordenador portátil.
The document provides requirements for setting up the network infrastructure for NuggetLabs' new office, which will initially house 75 employees across two floors. Key requirements include supporting VoIP phones and both secure and public wireless access. The network design should include VLANs, IP addressing, equipment orders, switchport configurations and visio diagrams. An on-site visit is needed to conduct a wireless survey. The objective is to provide a proposal with the required elements by next Friday.
The document describes the basic processing unit of a computer. It discusses how a processor fetches and executes instructions through a series of steps. It explains the components involved, such as the program counter, instruction register, and arithmetic logic unit. It also covers different organizations for controlling instruction execution, including hardwired control and microprogrammed control using microinstructions and a control store.
04 The Purpose of Straight-Through and Crossover Cables.pptxChellepia
Straight-through cables connect unlike devices by matching each pin on one end to the same pin on the other end. Crossover cables connect like devices by crisscrossing some wire pairs, allowing both devices to communicate simultaneously. Straight-through cables are used for connections like a computer to a switch, while crossover cables connect like devices such as two computers or two routers.
The document discusses IP addressing and subnetting. It defines IP address and subnet mask, and explains their importance for proper network communication. It covers classes of IP addresses and examples of subnet masks. The document also demonstrates how to identify network classes, perform IP addressing and subnetting, and troubleshoot issues like IP address conflicts. Key learning points are defining IP addresses and subnet masks, understanding basic IP addressing concepts, and correctly applying subnetting. Exercises are included to help with skills like assigning IP addresses and solving network problems.
This document provides an overview of networking concepts covered in Chapter 6 of the IT Essentials 5.0 course. It defines key networking terms like LANs, WANs, protocols, topologies and physical components. The chapter objectives are outlined and each section defines and describes networking concepts such as IP addressing, DHCP, switches, routers and common cabling types.
How to prepare a portable bootable devicesiankeithsomoza
The document discusses how to prepare portable bootable devices such as USB installers. It lists three learning objectives: 1) discussing different methods for creating portable bootable devices, 2) performing the steps to create a USB installer, and 3) recognizing the importance of USB installers and portable bootable devices. The document provides information on how to create a bootable Windows 10 USB drive and how to create a Windows 10 UEFI boot media using the Media Creation Tool.
Computer Networking: Subnetting and IP AddressingBisrat Girma
The document discusses IP addressing and subnetting. It provides an overview of classful addressing and how IP addresses were originally divided into classes A, B, and C. It then covers special addresses, private addresses, methods for identifying the class of an IP address, network addresses, subnet masks, CIDR notation, and how to calculate the number of subnets and hosts per subnet. The goal is to explain the fundamental concepts behind IP addressing and subnetting.
1. The document discusses procedures for installing the Windows 7 operating system. It begins with objectives and a review of the previous lesson on creating bootable USB flash drives.
2. Details are provided on the requirements, types, materials needed and standard procedures for installing Windows 7. These include selecting installation options, partitioning drives, setting passwords and network settings.
3. Students are instructed to create a demonstration video explaining the operating system, importance of installation, and procedures for installing Windows 7 based on a provided rubric.
Through subnetting, a network administrator can logically divide a single network into multiple subnets with fewer hosts on each. This reduces broadcast traffic across the entire network. The key concept is borrowing bits from the host portion of the IP address to create the subnet portion. For each address class, only a certain number of bits can be borrowed to create subnets while ensuring some bits remain for host IDs. Calculations using simple formulas allow determining the number of subnets and hosts per subnet available for any given subnet mask.
The document discusses laptop components and configuration. It describes the advantages of laptops over desktops due to their compact size. It identifies and explains the various external components of a laptop like the display, keyboard, ports and indicators. The document also discusses the internal components like the CPU and motherboard. It covers configuring power settings in the BIOS and Windows. Finally, it explains different wireless communication methods for laptops like Bluetooth, infrared and cellular WAN.
A tutorial for beginners who are curious to learn about the Linux boot process. If you have any more doubts, you can contact me through my email given in the slide, or through my blog: mastro77.blogspot.in
This document provides an overview of Ethernet networking. It defines Ethernet and its standards, physical components, and data link features. The document discusses how Ethernet has evolved from coaxial cable to UTP/STP cabling. It compares hub-based Ethernet LANs to switched Ethernet LANs, describing how switches improve performance by reducing collisions. The document also outlines the CSMA/CD media access method, layer 2 addressing, ARP protocol, and basic switch operations like learning, aging, flooding, and forwarding.
Presentation on conducting mobile device forensics without the use of expensive commercial tools, instead utilising FOSS alternatives. Conducting manual analysis makes you a better forensic analyst as well as helps to discover more potential evidence. From acquisition, to analysis, to malware disassembly, this presentation will provide a primer on all facets of mobile forensics.
IT Essentials (Version 7.0) - ITE Chapter 3 Exam AnswersITExamAnswers.net
The document provides answers to exam questions about computer hardware, operating systems, and networking. It covers topics like RAID configurations, BIOS, hardware components, and troubleshooting issues. The questions and explanations discuss concepts like the minimum number of drives needed for different RAID levels, components replaced during motherboard upgrades, and how the BIOS and POST work.
The document contains a practice exam for CCNA 1 with multiple choice questions about networking concepts. It covers topics like the OSI model, TCP/IP, IPv4 and IPv6 addressing, routing, switching, and troubleshooting. An example question asks which layer of the OSI model would format data as shown in an exhibit. The correct answer is the data link layer.
CSS L16 - IP ADDRESSING
Learning Competencies
After this learning module the students will be able to . . .
◦○Learn and discuss network addressing, switching and routing.
◦○Identify and understand the IP Addressing format
◦○Understand the explain the Network address translation and IPv6
It essentials pc hardware and software overviewAhmed Sultan
The document provides an overview of the IT Essentials: PC Hardware and Software course, which teaches students practical knowledge of how computers work and helps prepare them for CompTIA A+ certification. The course is divided into two parts covering fundamentals and advanced topics related to hardware, software, networking, security and troubleshooting. It utilizes virtual learning tools and Cisco Packet Tracer activities to provide hands-on experience for students pursuing careers in IT.
This document provides an overview of operating systems and covers topics such as the characteristics, basic functions, types, installation, and customization of operating systems. It discusses desktop and network operating systems like Windows, Mac OS, and Linux. The document explains how to select an operating system based on customer needs, install and upgrade operating systems, set up user accounts, and navigate the Windows desktop interface. It also covers operating system directories, files, virtualization, and troubleshooting techniques.
The document provides step-by-step instructions for installing the Windows XP operating system. It describes inserting the Windows XP CD-ROM, going through the initial MS-DOS setup screens, selecting installation options such as disk partitioning and file system, entering registration information like the product key, and completing the installation process which includes setting up user accounts. Upon finishing, the user is prompted to log into Windows XP for the first time.
The 7-page document provides instructions for setting up IP addresses and configuring the firewall settings for a server and client computer. It includes specifying static IP addresses, subnet masks, default gateways and DNS servers for both computers. The steps also describe using the ping command to test connectivity and troubleshooting firewall issues that could cause timeout errors. Configuring the firewall to allow connectivity between the server and client computers is necessary to proceed with further network activities.
1. Un lector de tarjetas multimedia es necesario para usar un dispositivo de almacenamiento flash compacta en un ordenador portátil.
2. La causa más probable de que el cursor se mueva solo a veces cuando un usuario teclea en un ordenador portátil es que el usuario está rozando la superficie táctil mientras escribe.
3. USB se considera una tecnología plug and play en un ordenador portátil.
The document provides requirements for setting up the network infrastructure for NuggetLabs' new office, which will initially house 75 employees across two floors. Key requirements include supporting VoIP phones and both secure and public wireless access. The network design should include VLANs, IP addressing, equipment orders, switchport configurations and visio diagrams. An on-site visit is needed to conduct a wireless survey. The objective is to provide a proposal with the required elements by next Friday.
The document describes the basic processing unit of a computer. It discusses how a processor fetches and executes instructions through a series of steps. It explains the components involved, such as the program counter, instruction register, and arithmetic logic unit. It also covers different organizations for controlling instruction execution, including hardwired control and microprogrammed control using microinstructions and a control store.
04 The Purpose of Straight-Through and Crossover Cables.pptxChellepia
Straight-through cables connect unlike devices by matching each pin on one end to the same pin on the other end. Crossover cables connect like devices by crisscrossing some wire pairs, allowing both devices to communicate simultaneously. Straight-through cables are used for connections like a computer to a switch, while crossover cables connect like devices such as two computers or two routers.
The document discusses IP addressing and subnetting. It defines IP address and subnet mask, and explains their importance for proper network communication. It covers classes of IP addresses and examples of subnet masks. The document also demonstrates how to identify network classes, perform IP addressing and subnetting, and troubleshoot issues like IP address conflicts. Key learning points are defining IP addresses and subnet masks, understanding basic IP addressing concepts, and correctly applying subnetting. Exercises are included to help with skills like assigning IP addresses and solving network problems.
This document provides an overview of networking concepts covered in Chapter 6 of the IT Essentials 5.0 course. It defines key networking terms like LANs, WANs, protocols, topologies and physical components. The chapter objectives are outlined and each section defines and describes networking concepts such as IP addressing, DHCP, switches, routers and common cabling types.
How to prepare a portable bootable devicesiankeithsomoza
The document discusses how to prepare portable bootable devices such as USB installers. It lists three learning objectives: 1) discussing different methods for creating portable bootable devices, 2) performing the steps to create a USB installer, and 3) recognizing the importance of USB installers and portable bootable devices. The document provides information on how to create a bootable Windows 10 USB drive and how to create a Windows 10 UEFI boot media using the Media Creation Tool.
Computer Networking: Subnetting and IP AddressingBisrat Girma
The document discusses IP addressing and subnetting. It provides an overview of classful addressing and how IP addresses were originally divided into classes A, B, and C. It then covers special addresses, private addresses, methods for identifying the class of an IP address, network addresses, subnet masks, CIDR notation, and how to calculate the number of subnets and hosts per subnet. The goal is to explain the fundamental concepts behind IP addressing and subnetting.
1. The document discusses procedures for installing the Windows 7 operating system. It begins with objectives and a review of the previous lesson on creating bootable USB flash drives.
2. Details are provided on the requirements, types, materials needed and standard procedures for installing Windows 7. These include selecting installation options, partitioning drives, setting passwords and network settings.
3. Students are instructed to create a demonstration video explaining the operating system, importance of installation, and procedures for installing Windows 7 based on a provided rubric.
Through subnetting, a network administrator can logically divide a single network into multiple subnets with fewer hosts on each. This reduces broadcast traffic across the entire network. The key concept is borrowing bits from the host portion of the IP address to create the subnet portion. For each address class, only a certain number of bits can be borrowed to create subnets while ensuring some bits remain for host IDs. Calculations using simple formulas allow determining the number of subnets and hosts per subnet available for any given subnet mask.
The document discusses laptop components and configuration. It describes the advantages of laptops over desktops due to their compact size. It identifies and explains the various external components of a laptop like the display, keyboard, ports and indicators. The document also discusses the internal components like the CPU and motherboard. It covers configuring power settings in the BIOS and Windows. Finally, it explains different wireless communication methods for laptops like Bluetooth, infrared and cellular WAN.
A tutorial for beginners who are curious to learn about the Linux boot process. If you have any more doubts, you can contact me through my email given in the slide, or through my blog: mastro77.blogspot.in
This document provides an overview of Ethernet networking. It defines Ethernet and its standards, physical components, and data link features. The document discusses how Ethernet has evolved from coaxial cable to UTP/STP cabling. It compares hub-based Ethernet LANs to switched Ethernet LANs, describing how switches improve performance by reducing collisions. The document also outlines the CSMA/CD media access method, layer 2 addressing, ARP protocol, and basic switch operations like learning, aging, flooding, and forwarding.
Presentation on conducting mobile device forensics without the use of expensive commercial tools, instead utilising FOSS alternatives. Conducting manual analysis makes you a better forensic analyst as well as helps to discover more potential evidence. From acquisition, to analysis, to malware disassembly, this presentation will provide a primer on all facets of mobile forensics.
Study of similiarities and difference between android and ios system archiitecture in operating system perspective like thread management process management memory management etc more technical details
Gopal Kumar presented on software quality assurance and testing done during an industrial training. The presentation covered:
1) An overview of the organization SpiceRetail Ltd and their mobile phone offerings.
2) Different types and levels of testing including manual, automation, black box, white box and functional/non-functional testing.
3) Challenges in mobile device testing like supporting different targets and operating systems.
4) A proposed interruption matrix approach to help select meaningful test cases accounting for device interruptions and states.
This is a Mobile application created to run on both iOS (iphone / iPad) and Android (SmartPhones / Tablets)-based operating systems. This application can be used for multiple purposes including corporate meetings and e-learning.
IT Essentials (Version 7.0) - ITE Chapter 13 Exam AnswersITExamAnswers.net
This document contains the answers to exam questions for IT Essentials (ITE v6.0 + v7.0) Chapter 13. It discusses topics related to computer security including asymmetric encryption, hashing algorithms, social engineering, DDoS attacks, Windows features for encrypting files and drives, firewall types, malware types, and security best practices. The answers provided explanations for each multiple choice question to help students learn about common computer security threats and mitigation techniques.
Stephanie Vanroelen - Mobile Anti-Virus apps exposedNoNameCon
Talk by Stephanie Vanroelen at NoNameCon 2019.
https://nonamecon.org
https://cfp.nonamecon.org/nnc2019/talk/ZFJFW8/
This talk is about top anti-virus apps on Mobile. An in depth look on how they work and what they do. Do they add to or break the security of the mobile OS?
This talk is about top anti-virus apps on Android. An in-depth look at how they work and what they do.
The focus will be on the top 5 android apps:
Kaspersky Mobile Antivirus
Avast Mobile Security
Norton Security & Antivirus
Sophos Mobile Security
Security Master
This talk will try to answer the following questions: Do they add to or break the security of the Android sandbox system? What type of information is being shared back to the company (if any)? Are these apps well built?
Finally, I will address the following: Do I recommend any of these apps and if so which one and why?
Mobile application testing focuses on testing the functionality and features of a mobile app, whereas mobile testing is broader and tests the native features of mobile devices like calls, SMS, media players, etc. Some common mobile platforms tested include iOS, Android, Blackberry and Windows. Testing involves checking installation/uninstallation, functionality, connectivity, performance on different devices and networks, and response to invalid user inputs. Various tools are used for testing, debugging, automation, and performance testing.
The document discusses an analysis of the popular Android keyboard app Flash Keyboard. The summary finds:
1) Flash Keyboard requests unnecessary permissions for a keyboard app, including contacts, location, SMS access, and device admin privileges.
2) The app replaces the device lockscreen with its own customized lockscreen to display ads without informing users.
3) The app transmits personal user data like email, WiFi details, and precise location to a Chinese analytics company without consent.
IRJET - System to Identify and Define Security Threats to the users About The...IRJET Journal
The document describes a proposed system called "MobiSecure" that would identify and define security threats from illegitimate installed applications on Android devices. It aims to scan a device's memory for applications downloaded from unknown sources that could enable cyberattacks. The system would detect such applications, inform the user, and allow deleting the application to mitigate risks. It has modules for scanning devices, displaying results with threat descriptions, and removing flagged applications. The system architecture is designed to identify malware-containing applications installed without user knowledge to help decrease cyber threats.
Speaker:Santhosh Kumar
Event:Defcon Kerala
Date:8/03/2014
Android-Forensic and Security Analysis.
Android one of the leading Mobile Operating System which is managed by Google released back in 2008 now stands with a 4.4.x version Android KitKat.The Study Shows that increasing Crime Rates are switching from Computer Centered to PDA Based.Crime against Women,Children And Abuse.As the Digital Forensics and Law Enforcement Agencies find new Hard Challenges Cracking Down different Situation in the Android Environment.Google Play Store which has over 1 Million Application Active has also added to the Pain.
The Talk Focus on various Methods,the Various Situation where the forensics is useful.
The Methods are classified as Logical and physical which involves from breaking the passcodes to exploring virtual NAND memory.
The talk also focus on various places where is information is available to the forensic point of view.
Affected by Mobile Cyber Attack? Tortured by a Android Smartphone ? Relax there is a solution to each and everything.
The Talk also focus on using both Windows And linux as the Forensic Investigation Environment.
Android Which has the linux kernel at Heart can be best paradise when it comes to Forensic Data.
Various Tools on way this can be done in faster way.
Forensic always useful whether you are from a corporate environment or even from the massive Law enforcement Agencies.
This document provides information about various topics related to computer networks:
1. It defines network software, system software, hardware, software, firmware, apps, and addresses. Network software enables sharing of information and resources, while system software manages devices. Hardware are physical components and software are programs.
2. It describes the layers of an SDN framework including the application, control, and infrastructure layers which communicate via northbound and southbound APIs.
3. It compares application software and system software, apps and software, and hardware, software, and firmware in terms of their functions, executability, updatability, and examples.
4. It defines types of addresses including physical, logical, port,
Mobile security is one of the most important
aspect when it comes to keeping our data secure from any
external attack like phishing, data hacking and many other
attacks that can have very disastrous effects that may also
lead to social disturbance, as in one’s private data can be
made public by the attackers.
Mobile application testing involves testing applications developed for mobile devices to ensure they function properly on those devices. It differs from mobile device testing, which tests the core functionality of the devices themselves, like connectivity and battery life. Popular mobile platforms include Android, iOS, Blackberry and Windows Mobile. Testing covers installation, uninstallation, network connectivity, handling of calls/SMS, screen orientation, low memory/battery conditions, and ensuring applications don't interfere with other device functionality. Automation tools can help with testing on actual devices or emulators.
The document discusses mobile security and vulnerabilities. It begins with an introduction of the speaker, Dr. Ir. Stefaan Seys, and the agenda. It then covers topics like the relative security of Android, iOS, and Windows mobile platforms. Specific issues discussed include Android's challenges with updates, data storage vulnerabilities, jailbreaking/rooting risks, and threats involving insufficient transport layer protection and insecure data storage. Examples of past mobile vulnerabilities like Stagefright are provided.
Outsmarting Hackers before your App gets Hacked - iOS Conf SG 2016Subho Halder
Mobile App Security is an issue which isn’t given much priority while your app is in the development stage, as a result of which hackers are able to target your iOS app.
This talk will feature the most common security mistake developers do, and how to fix them easily. It will also cover different security & privacy enhancements provided by Apple such as SecKey API, Differential Privacy, Cryptographic Libraries, et cetera in iOS 10 which will enable developers to ship secure applications in the Appstore
This document discusses various topics related to computer networks including network software, system software, hardware, software, firmware, apps, and IP addresses. It provides definitions and examples of these terms. It explains the differences between system software and application software, and between hardware, software, and firmware. It also discusses software-defined networking frameworks and the layers within it. IP addresses are defined and the differences between IPv4 and IPv6 are outlined.
The document discusses SensActions, an Android application that uses various sensors on a device to perform different functions without using the touchscreen. It can lock/unlock a device using the proximity sensor, change music tracks with shakes, and use the camera flash as a torch. The purpose is to allow users to interact with their smartphone in a convenient and smarter way. It provides widgets, help screens, and uninstall instructions. The document also covers the system architecture, including the Linux kernel, Dalvik virtual machine, libraries, and application framework.
The document discusses mobile application testing, including the types of mobile applications like web, native, and hybrid applications; different mobile platforms like Android and iOS; how to test aspects like installation, features, and network connectivity; challenges in mobile application testing like lack of devices; and how to overcome challenges using emulators and automation tools.
Android open-source operating System for mobile devicesIOSR Journals
This document provides an overview of the Android operating system and its security features. It discusses Android's architecture, including its use of the Linux kernel and Dalvik virtual machine. Key security aspects are summarized, such as the permission model and limitations of running apps within a sandbox. The document also introduces an exploit execution framework that can test Android devices for vulnerabilities. It concludes by discussing how malware may propagate on Android devices and potential future threats.
Similar to IT Essentials (Version 7.0) - ITE Chapter 12 Exam Answers (20)
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IT Essentials (Version 7.0) - ITE Chapter 12 Exam Answers
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IT Essentials (ITE v6.0 + v7.0) Chapter 12 Exam Answers 100%
1. Which two location data sources can locator apps use to determine the position of a mobile
device? (Choose two.)
cellular towers *
WiFi hotspots *
the sandbox
remote lock
an app source
Explanation: In addition to GPS, mobile device locator apps can use cellular towers and WiFi
hotspots to determine the position of a mobile device. The device sandbox, remote lock, or an
app source (Play Store or iTunes) are other features and functions related to security and app
downloading.
2. What are two ways that iOS differs from Android? (Choose two.)
iOS uses an All Apps button whereas Android uses a Home button.
iOS has a physical Home button, but Android uses navigation icons. *
In iOS, the icon for an app represents the app itself. Deleting the icon in iOS deletes the app.
In Android, the icon on the Home screen is a shortcut to the app. *
In iOS, apps can only appear on screens, whereas in Android, apps can appear on screens and
in folders.
In iOS, folders are created by dragging one app on top of another app, but in Android folders
must be created from the home screen menu.
Explanation: Apple iOS devices have a physical Home button that has many uses. One of the
uses of the Home button is navigation between screens. Android uses navigation icons
instead of a physical Home button. In addition, much like a Windows OS, apps in Android are
represented by icons that are shortcuts to the actual app. In iOS, the icons are the apps.
Deleting an icon in Android deletes only the shortcut. However, the entire app is deleted from
an iOS device when its icon is deleted.
3. What are two purposes of the passcode lock feature on mobile devices? (Choose two.)
to help prevent theft of private information *
to prevent unauthorized use of the device *
to erase all personal data from the device
to return the device to the default factory state
to restore and re-synchronize the device
to remotely lock the device if it is stolen
Explanation: The passcode lock feature on mobile devices helps prevent theft of private
information and places the device into a power saving state. Personal data will not usually be
erased from some mobile devices unless the number of failed passcode login attempts
exceeds a threshold. Remote lock allows the device to be locked from a remote location. A
factory reset returns the device to the original operation state when the device was first
purchased. Various applications such as email or cloud storage can provide synchronization
HERE
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capabilities to be able to restore and re-synchronize information such as user data, contacts,
and email on a mobile device.y other device features and actions.
4. Refer to the exhibit. What two statements are true about the mobile operating system
screen shown? (Choose two.)
ITE v7.0 – IT Essentials (Version 7.0) Chapter 12 Answers
The area enclosed by the red rectangle contains navigation icons. *
The area that is highlighted displays background processes and indicators.
This is a Windows Phone screen.
This is an Android screen. *
This is an iOS screen.
Explanation: The highlighted area shows the Android operating system navigation icons. From
left to right they are Back, Home, and Recent Apps.
5. Which two methods are commonly used to remove the default restrictions and protections
added to mobile operating systems? (Choose two.)
rooting *
jailbreaking *
rootkit execution
device update
system backup
Explanation: Mobile operating systems are usually protected by a number of software
restrictions. Rooting and jailbreaking are two methods for removing restrictions and
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protections added to mobile operating systems. They are a means of circumventing the usual
operation of the device operating system to gain superuser or root administrator permissions.
6. A Linux administrator wants to backup current files in a data directory and store them in a
new directory on another disk. Which two commands would be needed? (Choose two.)
cd
cp *
rm
mv
mkdir *
Explanation: The mkdir command is used to create the new directory and the cp command is
used to copy files from one directory to another.
7. A file called new_resume has the following file permissions: rw-r-x–x. What two facts can
be determined from these permissions? (Choose two.)
The user has full access to the file.
Members of the group have read and execute access to the file. *
Other people have read and execute access to the file.
Group members are able to modify the file.
The user is able to read and modify the file. *
Other people have no access to the file.
Explanation: Read, write, and execute permissions are assigned to each file. The permissions
are listed in groups of three. The first group of three permissions references users, the second
references group members, and the third references others. The first position of each of the
three permissions is the R or read permission, the second is the W or write permission, and the
third is the X or execute permission. If any position has a dash, the associated group does not
have permission for that category. In this case, the user hasread and write access (rw-). Group
members haveread and execute access (r-x). Other people haveexecute only access (–x).
8. What is a good source for safely downloading Android apps?
iTunes
Google Play *
freeware sites
the Apple App Store
Explanation: Google Play ensures that the app is compatible with the mobile device and is a
trusted source for apps.
9. What represents apps in the Windows Phone interface?
buttons
icons
tiles *
widgets
Explanation: The Windows Phone OS uses tiles to represent apps. Tiles are rectangles that can
display active content. When tapped, they open the associated app. Tiles can be resized to
unclutter screens and to reflect the relative importance of the app.
10. What is the result of doing a factory reset on a mobile device?
The operating system will be updated with the most recent updates and patches.
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All user data and settings will be deleted. *
The operating system will be deleted and all user data is transferred to the Cloud.
A complete backup of the device is done and all viruses and malware are removed.
Explanation: After a factor reset, a mobile device is left in the same state that it was when it
left the factory. The operating system software would not be altered but all user data, settings,
and third party applications would be deleted. Backups should be done prior to a factory reset.
Updates or patches to the operating system could be done before or after the factory reset.
11. What is the name of the Windows Phone 8.1 digital, or virtual, assistant?
Bing
Cortana *
Nova Launcher
Spotlight
Explanation: Siri is the well-known digital, or virtual, assistant that is available in iOS. Windows
Phone also has a digitial assistant. It is called Cortana.
12. What is Wi-Fi calling?
a method used to push apps to smartphones
a convenient way to securely and digitally make payments with mobile devices
a government emergency alert service for smartphones
a way to make mobile phone calls over a wireless data network *
a method for sharing data between two mobile devices
Explanation: Wi-Fi calling is a way that a mobile phone can use a wireless data network to
make phone calls as if it were connected to a cellular network. In cases where cell phone
coverage is inadequate, calls can be placed from places that have open Wi-Fi networks.
13. What is the purpose of signature files used to secure mobile devices and operating
systems?
They contain a record of historical and pending firmware and software updates.
They contain a list of all user passwords.
They contain a log of digital certificates and encryption keys associated with the user.
They contain sample code from known viruses and malware that is used by security software
to identify malicious software. *
Explanation: Antivirus and antimalware software compare the contents of a disk with sample
virus and malware code included in signature files. If a comparison is found, the user can be
notified and the virus can be isolated or removed.
14. What is a purpose of the boot manager program?
It manages antivirus signature files, encryption keys, and certificates when a device boots.
It automates the POST and checks the disk for bad sectors during a boot.
It checks the validity of hardware and software on the device after a factory reset.
It allows the user to select the OS to use to boot the device. *
It allows the user to determine which apps are automatically opened during the boot process.
Explanation: Many devices have multiple operating systems installed in different partitions.
When a device boots, the boot manager asks the user to select the OS to use. The boot
manager then directs the BIOS to the correct partition so that the device can continue to boot
by using the selected OS.
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15. An administrator is re-imaging a large number of Mac OS X machines. What built-in tool or
command can be used to remotely boot the computers?
mstsc
Netboot *
Time Machine
Finder
Explanation: Netboot is a built-in tool on the Mac OS that allows for remotely booting the
computers. Finder is similar to the Windows File Explorer tool and is used to navigate the Mac
OS file system. MSTSC is used to open the Windows Remote Desktop utility. Time Machine is
an automatic backup utility built into the Mac OS.
16. What tool or command is used in the Mac OS X to navigate the file system?
File Explorer
Task Manager
Finder *
mstsc
Explanation: Finder is similar to the Windows File Explorer tool and is used to navigate the
Mac OS file system. The mstsc command is used to open the Windows Remote Desktop
utility. The Task Manager tool on Windows allows a user to view all running applications.
17. Which model does Apple use to provide iOS apps to customers?
iCloud
Xcode
sandbox
walled garden *
Explanation: Apple uses a walled garden model for the iOS apps. The apps must be submitted
to and approved by Apple before they are released to users.
18. Android apps run primarily based on privileges enabled by the user. Sometimes an Android
app requires extra privileges to access system components. How do Android apps run to
accomplish both situations?
Android apps run in a sandbox. *
Android apps run in a guest mode.
Android apps run in a walled garden.
Android apps run through a proxy service.
Explanation: Android apps run in a sandbox and have only the privileges enabled by the user. If
an app needs to obtain permissions, a prompt will appear and the user can grant permissions
through settings.
19. Which navigation icon on the system bar of an Android device is used to return to the
previous screen?
Back *
Home
Menu
Recent Apps
Explanation: The Back icon, if pressed, returns to the previous screen.
20. Which statement describes the iOS app icons on a mobile device screen?
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Each icon is a shortcut of the app.
Each icon represents the actual app. *
Each icon represents an instance of the actual app.
Each icon links to multiple instances of the actual app.
Explanation: On the iOS interface, each app on screen is the actual app, not a shortcut.
21. What is the purpose of using the auto-brightness feature on a mobile device with an LCD
screen?
to conserve battery power *
to reduce the interference from sunlight
to prevent the burn-in effect on the screen
to display text messages with better contrast
Explanation: The LCD screen for most mobile devices uses the most battery power. Lowering
the brightness or using the auto-brightness feature helps conserve battery power.
22. Which statement describes the Touch ID in iOS devices?
It is used as the passcode.
It is the encryption key set by the user.
It is the hash value of the user fingerprint. *
It is used to set the touch screen sensitivity.
Explanation: Apple uses a technology known as Touch ID in which the user sets up a template
fingerprint scan that is converted into a unique hash and stored within a secure cache on the
iOS device. The hash is used to authenticate with the user.
23. Which cloud-based storage service does Microsoft provide for backups?
iCloud
Dropbox
OneDrive *
Google Sync
Explanation: Data on mobile devices must be backed up periodically to ensure that it can be
recovered if needed. Most mobile operating systems come with a user account linked to the
cloud services of the vendor, such as iClould for iOS, Google Sync for Android, and OneDrive
for Microsoft.
24. A mobile device user notices that the system update includes an update of the Primary
Rate ISDN (PRI). What is the function of the PRI?
It is the configuration of radio frequencies used on the device.
It is the data rate setting of the user account with the carrier service.
It is the configuration of the data rates between the device and the cell tower. *
It is the configuration information that the device needs to communicate on networks other
than the carrier network.
Explanation: In addition to mobile operating system updates, there are two other types of
updates for mobile device radio firmware. They are called baseband updates and consist of
the Preferred Roaming List (PRL) and the Primary Rate ISDN (PRI). The PRL is configuration
information that a cellular phone needs to communicate on networks other than the carrier
network. The PRI configures the data rates between the device and the cell tower. This
ensures that the device is able to communicate with the tower at the correct rate.
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25. A Linux PC user notices that the PC freezes on startup and exhibits kernel panic where
there is a stop screen. What is a possible cause for the issue?
LILO has been deleted.
GRUB has been corrupted.
A driver has become corrupted. *
Deja Dup has been turned off in the system.
Explanation: When a driver in a Linux system has been corrupted or a piece of hardware is
failing, the system will freeze on startup and exhibits kernel panic where there is a stop screen.
26. What command is used to open a text editor in a Linux system?
grep
ifconfig
ls
vim
Explanation: The vim command is used to open a text editor; ls displays files within a
directory; grep searches for strings of characters within a file; and ifconfig displays
information about the network interface card.
27. Which Linux file system introduced the journaled file system, which can be used to
minimize the risk of file system corruption in the event of a sudden power loss?
ext2
ext3 *
CDFS
NFS
Explanation: The ext3 file system is considered a journaled file system that was designed to
improve the existing ext2 file system. A journal, the main feature added to ext3, is a technique
used to minimize the risk of file system corruption in the event of sudden power loss.
28. What is the most commonly used method to close an application that appears to be frozen
on an OS X-based computer?
Use Force Quit. *
Use Task Manager.
Access the Status menu.
Access the Notification Center.
Explanation: To use Force Quit, right-click on the application icon that is not responding from
the Dock and close the application.
29. Which file system is the primary file system used by Apple in current Macintosh
computers?
ext2
ext3
CDFS
HFS+
APFS
Explanation: To use Force Quit, right-click on the application icon that is not responding from
the Dock and close the application.
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30. An instructor is discussing facts about different mobile device operating software. The
instructor states: “The mobile devices have a feature called Spotlight that is a search tool that
provides information from many sources.” To which OS does this relate: iOS, Android, or both?
iOS *
Android
both
31. An instructor is discussing facts about different mobile device operating software. The
instructor states: “This OS uses the system bar, displayed at the bottom of every screen, to
navigate apps and screens.” To which OS does this relate: iOS, Android, or both?
Android *
iOS
both
32. An instructor is discussing facts about different mobile device operating software. The
instructor states: “This OS can be used by programmers to operate devices like laptops, smart
TVs, and e-book readers.” To which OS does this relate: iOS, Android, or both?
Android *
iOS
both
33. An instructor is discussing facts about different mobile device operating software. The
instructor states: “The icon on the Home screen is a shortcut to the app.” To which OS does
this relate: iOS, Android, or both?
Android *
iOS
both
34. An instructor is discussing facts about different mobile device operating software. The
instructor states: “WIFI hotspots are a location data source that can be used by locator apps to
determine the position of a mobile device.” To which OS does this relate: iOS, Android, or
both?
both *
iOS
Android
35. An instructor is discussing facts about different mobile device operating software. The
instructor states: “Remote backups are a cloud-enabled service for mobile devices.” To which
OS does this relate: iOS, Android, or both?
both *
iOS
Android
36. An instructor is discussing facts about different mobile device operating software. The
instructor states: “GPS signals are used to enable geocaching, geotagging and device tracking
on these mobile devices.” To which OS does this relate: iOS, Android, or both?
both *
iOS
Android
37. An instructor is discussing facts about different mobile device operating software. The
instructor states: “The start voice control function can be performed with the home button.” To
which OS does this relate: iOS, Android, or both?
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iOS *
Android
both
38. An instructor is discussing facts about different mobile device operating software. The
instructor states: “To synchronize a mobile device to a PC, iTunes must be installed on the
PC.” To which OS does this relate: iOS, Android, or both?
iOS *
Android
both
39. An instructor is discussing facts about different mobile device operating software. The
instructor states: “When the device roams out of the range of any Wi-Fi networks, it can
connect to the cellular data network if this feature is enabled.” To which OS does this relate:
iOS, Android, or both?
both *
iOS
Android
IT Essentials v6.0:
1. Which two security precautions will help protect a workplace against social engineering?
(Choose two.)
performing daily data backups
encrypting all sensitive data stored on the servers
registering and escorting all visitors to the premises*
ensuring that all operating system and antivirus software is up to date
ensuring that each use of an access card allows access to only one user at the time*
2. Which two characteristics describe a worm? (Choose two.)
executes when software is run on a computer
is self-replicating*
hides in a dormant state until needed by an attacker
infects computers by attaching to software code
travels to new computers without any intervention or knowledge of the user*
3. Which type of security threat uses email that appears to be from a legitimate sender and
asks the email recipient to visit a website to enter confidential information?
adware
phishing*
stealth virus
worm
4. What is the primary goal of a DoS attack?
to facilitate access to external networks
to prevent the target server from being able to handle additional requests*
to obtain all addresses in the address book within the server
to scan the data on the target server
5. Which type of attack involves the misdirection of a user from a legitimate web site to a fake
web site?
SYN flooding
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DDoS
DNS poisoning*
spoofing
6. Which password is the strongest?
qwerty
Abc123
Im4ging!
Gd^7123e!*
pAssword
7. Which three questions should be addressed by organizations developing a security policy?
(Choose three.)
What assets require protection?*
How should future expansion be done?
What is to be done in the case of a security breach?*
When do the assets need protecting?
What insurance coverage is required?
What are the possible threats to the assets of the organization?*
8. The XYZ company has decided to upgrade some of its older PCs. What precaution should
the company take before the disposal of the remaining older computers?
Perform a high-level format of the hard drive.
Remove the RAM from the motherboard.
Data wipe the hard drive.*
Destroy the monitor.
Remove the CPU.
9. Which two file-level permissions allow a user to delete a file? (Choose two.)
Read
Modify*
Read and Execute
Write
Full Control*
List Contents
10. What is the name given to the programming-code patterns of viruses?
grayware
mirrors
signatures*
virus definition tables
11. What is the most effective way of securing wireless traffic?
WPA2*
SSID hiding
WEP
wireless MAC filtering
12. Port triggering has been configured on a wireless router. Port 25 has been defined as the
trigger port and port 113 as an open port. What effect does this have on network traffic?
Any traffic that comes into port 25 allows outgoing port 113 to be used.
All traffic that is sent into port 25 to the internal network will also be allowed to use port 113.
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Any traffic that is using port 25 going out of the internal network will also be allowed to
transmit out port 113.
All traffic that is sent out port 25 will open port 113 to allow inbound traffic into the internal
network through port 113.*
13. What are two physical security precautions that a business can take to protect its
computers and systems? (Choose two.)
Perform daily data backups.
Implement biometric authentication.*
Lock doors to telecommunications rooms.*
Replace software firewalls with hardware firewalls.
Ensure that all operating system and antivirus software is up to date.
14. What is the minimum level of Windows security required to allow a local user to restore
backed up files?
Write*
Read
Create
Full
15. What is the purpose of the user account idle timeout setting?
to log a user out of a computer after a specified amount of time*
to display a timeout message if a user has not typed a keystroke in a particular amount of
time
to turn the computer off if the user has not typed anything after a specified amount of time
to create a log message of how long the computer was not used
16. Which two security procedures are best practices for managing user accounts? (Choose
two.)
Disable authentication.
Limit the number of failed login attempts.*
Restrict the time of day that users can log into a computer.*
Enable AutoRun.
Enable port forwarding.
17. Which Windows Firewall option allows the user to manually allow access to the ports
required for an application to be allowed to run?
Manage Security Settings*
Automatically
Turn off Windows firewall
Turn on Windows firewall
18. Which two Windows default groups are allowed to back up and restore all files, folders, and
subfolders regardless of what permissions are assigned to those files and folders? (Choose
two.)
Administrators*
Power Users
Backup Operators*
Access Control Assistants
Cryptographic Operators
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19. A manager approaches a PC repair person with the issue that users are coming in to the
company in the middle of the night to play games on their computers. What might the PC
repair person do to help in this situation?
Limit the login times.*
Use Event View to document the times logged in and out of the computer.
Use Device Manager to limit access to the computer.
Enable power on passwords in the BIOS.
20. Which question would be an example of an open-ended question that a technician might
ask when troubleshooting a security issue?
Is your security software up to date?
Have you scanned your computer recently for viruses?
Did you open any attachments from a suspicious email message?
What symptoms are you experiencing?*
21. Which action would help a technician to determine if a denial of service attack is being
caused by malware on a host?
Disconnect the host from the network.*
Log on to the host as a different user.
Disable ActiveX and Silverlight on the host.
Install rogue antivirus software on the host.
22. A technician is troubleshooting a computer security issue. The computer was
compromised by an attacker as a result of the user having a weak password. Which action
should the technician take as a preventive measure against this type of attack happening in
the future?
Check the computer for the latest OS patches and updates.
Verify the physical security of all offices.
Ensure the security policy is being enforced.*
Scan the computer with protection software.
23. It has been noted that the computers of employees who use removable flash drives are
being infected with viruses and other malware. Which two actions can help prevent this
problem in the future? (Choose two.)
Set virus protection software to scan removable media when data is accessed.*
Configure the Windows Firewall to block the ports that are used by viruses.
Disable the autorun feature in the operating system.*
Repair, delete, or quarantine the infected files.
Enable the TPM in the CMOS settings.
24. A virus has infected several computers in a small office. It is determined that the virus was
spread by a USB drive that was shared by users. What can be done to prevent this problem?
Destroy the USB drive.
Activate Windows Firewall.
Change the passwords on the computers.
Set the antivirus software to scan removable media.*
25. A user is browsing the Internet when a rogue pop-up warning message appears indicating
that malware has infected the machine. The warning message window is unfamiliar, and the
user knows that the computer is already protected by antimalware software. What should the
user do in this situation?
Allow the software to remove the threats.
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Click the warning window to close it.
Update the current antimalware software.
Close the browser tab or window.*
26. In what situation will a file on a computer using Windows 8.1 keep its original access
permissions?
when it is copied to the same volume
when it is moved to the same volume*
when it is copied to a different volume
when it is moved to a different volume
27. What security measure can be used to encrypt the entire volume of a removable drive?
EFS
TPM
BitLocker To Go*
NTFS permission
28. A user calls the help desk reporting that a laptop is not performing as expected. Upon
checking the laptop, a technician notices that some system files have been renamed and file
permissions have changed. What could cause these problems?
The file system is corrupted.
The laptop is infected by a virus.*
The display driver is corrupted.
The file system has been encrypted.
Older Version
29. Which two operating systems can be upgraded to Windows XP Home? (Choose two.)
Windows 95
Windows 3.1
Windows 98*
Windows 98 SE
Windows NT workstation*
30. A customer using a Windows XP computer is complaining that a new card reader is not
working. A technician tests the card reader on a Windows 7 computer and does not detect any
problems. What are two possible solutions to the problem with the XP computer? (Choose
two.)
Install additional RAM.
Modify the options in the BIOS.
Install the driver from the CD provided with the card reader.*
Download and install the driver from the manufacturer of the card reader.*
Update the CMOS firmware.
31. A technician is replacing an internal hard drive used as a secondary drive on a PC. After
connecting the new hardware and powering up the computer, an “OS not found” error message
is displayed. What is the most probable cause for that error message?
The power supply is faulty.
The hard drive jumper is set incorrectly.*
The motherboard needs replacing to be able to support the new hard drive.
The USB port has too many attached devices to supply adequate power.
The BIOS needs updating.
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32. A technician is upgrading an older PC with a dual core CPU. When the PC restarts, it is
slower than it was before the upgrade. The Performance tab from the Task Manager displays
only one CPU graph. What is the most probable solution to this problem?
Replace the HDD with a higher capacity hard drive.
Overclock the CPU.
Increase the amount of RAM available.
Update the BIOS firmware to support the dual core CPU.*
33. A laptop that is running Windows XP displays “Missing NTLDR” after the POST. What are
the two most probable reasons for this problem? (Choose two.)
Boot.ini is missing or damaged.*
There is a conflict with a newly installed device.
BOOTMGR has been corrupted.
The boot order is not set correctly in the BIOS.*
The index service is not indexing in the correct locations.
34. Several times during the last few days, a user has experienced the Blue Screen of Death
when plugging an external hard drive into a laptop via USB. What is a possible solution for this
problem?
Reinstall the operating system.
Upgrade the operating system.
Research the STOP error and the name of the module that produced the error.*
Research the boot error beep code to identify the source of the error.
35. A computer repeatedly locks without any error message. Which two conditions may be the
cause of the problem? (Choose two.)
The UAC has been turned off.
The user has breached the user security policy.
The computer has a virus.*
The index service is not running.
The CPU needs to be upgraded.
An update has corrupted the operating system.*
36. What are two possible solutions to any Windows computer restarting continuously and
never displaying the desktop? (Choose two.)
Upgrade the processor.
Upgrade the video card.
Press F8 to open the Advanced Options menu and choose Disable Automatic Restart on
System Failure.*
Reset the hard drive jumpers.
Run chkdsk /F /R from the recovery console.*
Access the BIOS and change the boot order options.
37. A PC is not able to connect to a wired network. Pinging the loopback address is
successful, but the gateway cannot be reached. On the network switch all the interface lights
are on, except for the interface connected to the PC. The LED on the network card is off. What
is the most likely cause of this problem?
The network switch is faulty.
The gateway needs to be fixed.
The network cable is faulty.*
The PC has an incorrect IP address for the DNS server.
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38. Users in a recently installed wireless network are complaining of slow data transfer and
frequent loss of connectivity. The technician checks that the wireless security is correctly
implemented, and there is no evidence of unauthorized users on the network. Which two
problems might the technician suspect? (Choose two.)
The wireless signal is too weak.*
The DHCP server is faulty.
There is interference from outside sources.*
The antenna on the access point is too powerful.
The network passwords need to be reissued to the users.
39. A group of users is unable to connect to the network. When testing several of the PCs and
issuing the command ipconfig, the technician notices that all of them have an IP address in
the 169.254.x.x range. What is the most likely cause of this problem?
The DNS server is not operational.
The Internet connectiion is down.
The gateway address is incorrect.
The DHCP server is not operational.*
40. A technician is working on a laptop that has a dark display. After attaching an external
display and verifying that it works, the technician now has a better idea as to the problem.
What could be the problem?
The display driver is incorrect.
The motherboard has failed.
The CPU has failed.
The power inverter of the LCD screen or backlight lamp has failed.*
41. A technician replaces a laptop keyboard that was no longer functioning, and has verified
that the newly replaced keyboard functions properly. What is the final step the technician
should take as part of the troubleshooting process?
Ask a list of closed-ended questions.
Research the problem.
Document all findings, actions, and outcomes.*
Implement preventive measures.
42. A user complains that when a page is printed on a laser printer, the page smears when
touched. What is a possible cause of this issue?
The laser assembly is faulty.
The EP drum is damaged.
The pickup rollers are defective.
The fuser has failed.*
43. A technician finds that occasionally when a network printer is restarted, clients are unable
to print to it, receiving a “Document failed to print” message. What is a probable cause of this?
The drum is damaged.
The printer does not have enough memory.
The toner level in the EP cartridge is low.
The power supply on the printer is failing.
The printer is configured to get an IP address using DHCP.*
44. A user complains that a printer is outputting random characters instead of the desired
document. What is a probable cause of this?
There is dirt or debris in the printer.
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The printer does not have enough memory.
The pickup rollers are defective.
An incorrect print driver is installed.*
45. A freshly installed Windows 7 laptop is plugged into the network and configured with an IP
address. The technician then attempts to ping the laptop from another computer. While the
laptop is able to connect to other devices, the ping requests fail. What is the likely cause?
The network drivers for the NIC are out of date.
The port speed for the NIC is incorrect.
TPM must be enabled.
The Windows Firewall is blocking ping requests.*
46. A computer displays this message when the computer boots: “MBR has been changed or
modified.” What could cause this problem?
The CMOS battery has failed.
A RAM module is not fully inserted into the memory slot.
A virus has altered the Windows kernel.
A boot sector virus has altered the master boot record.*
47. Users are complaining that they are receiving spam from the email account that belongs to
a co-worker. What could cause this problem?
A virus has damaged the master boot record on the system that is used by the co-worker.
The network adapter on the computer that is used by the co-worker is malfunctioning.
The email account belonging to the co-worker was hijacked because of malware.*
The email client belonging to the co-worker is not configured properly.
48. A technician is troubleshooting a laptop that has the power light on and the hard drive
spinning. However, the laptop only displays vertical lines that change color. What is the
problem?
The BIOS is corrupt.
The LCD screen has failed.*
The backlight lamp has failed.
The LCD screen inverter has failed.
49. A technician is troubleshooting a laser printer that outputs blank paper for all print jobs
including printer test pages. What is a probable cause?
The laser printer does not have adequate memory.
The drum is failing to hold a charge.*
The drum wiper blade is worn.
The fuser has failed.
50. A technician arrives and asks a customer, “Can you describe the problem?” The customer
replies, “All email messages that I send have the wrong date. I have restarted the computer
several times, but this does not seem to help.”
What could be the problem?
The MBR is corrupted.
The CPU voltage is set too low.
The CMOS battery has failed.*
The hard drive is beginning to fail.
51. A technician is troubleshooting a Windows 7 laptop infected with a virus that has damaged
the master boot record. The technician has booted the laptop using the installation media and
17. Computer Networking Tutorials-Labs-Tips, Exam & Answers
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is attempting to repair the laptop from the command line interface. Which two commands can
the technician use to repair the corrupt master boot record? (Choose two.)
regedit
chkdsk
regedt32
bootrec /fixboot*
bootrec /fixmbr*