The document discusses the OSI 7-layer model and TCP/IP 4-layer model for networking. It describes how each layer is responsible for preparing data for transmission and that data moves down the layers of the sending device and up the layers of the receiving device. It also explains that while the OSI model has 7 layers and TCP/IP has 4 layers, they perform similar functions with TCP/IP being used specifically for TCP/IP protocols. The document then focuses on TCP/IP, describing IP addresses and how they identify devices, and how IPv4 addresses are structured in 32-bit binary and the dotted decimal notation.
IPv4 (Internet Protocol Version 4). This silde will give u all information about IPv4.
Hope so you like it Freinds.
and
Sorry if i can fulfill ur wish in the given IPv4 Presentation.
IPv4 (Internet Protocol Version 4). This silde will give u all information about IPv4.
Hope so you like it Freinds.
and
Sorry if i can fulfill ur wish in the given IPv4 Presentation.
This presentation gives a brief description about IP Address (Internet protocol address), Classes of IPv4. And also included, what is IPv4 and what is IPv6.
This slide is design for communication and computer students. students can get help from this slide about TCP/IP and protocols of internet. this slide has basic knowledge about TCP and its layers.
Subnetting of IPv4 ip address that help you to solve every type of ip address with any one of the class you want to subnet,and have a basic introduction of IPv6 ,and why, Ipv5 is not used.
This presentation gives a brief description about IP Address (Internet protocol address), Classes of IPv4. And also included, what is IPv4 and what is IPv6.
This slide is design for communication and computer students. students can get help from this slide about TCP/IP and protocols of internet. this slide has basic knowledge about TCP and its layers.
Subnetting of IPv4 ip address that help you to solve every type of ip address with any one of the class you want to subnet,and have a basic introduction of IPv6 ,and why, Ipv5 is not used.
1)Please explain the commands ifconfig, ping, traceroute, netstat, d.pdfeyebolloptics
1)Please explain the commands ifconfig, ping, traceroute, netstat, dig, nslookup, route, host,
hostname.
2). Explain briefly about TCP/IP and its Protocol Architecture.
3) Explain the difference between TCP/IP Protocol stack and OSI model.
Solution
Answer:
1) Ipconfig
Ipconfig is an MS-DOS utility that can be used from MS-DOS and an MS-DOS shell to display
the network settings currently assigned and given by a network. This command can be utilized to
verify a network connection as well as to verify your network settings.
Ping
Ping is one of the most commonly used network commands that allows you to ping another
network IP address. Pinging another address helps determine if the network card can
communicate within the local network or outside network.
Netstat
The netstat command is used to display the TCP/IP network protocol statistics and information.
Nslookup
The nslookup MS-DOS utility that enables a user to do a reverse lookup on an IP address of a
domain or host on a network.
Route
The route MS-DOS utility enables computers to view and modify the computer\'s route table.
traceroute
The tracert command in MS-DOS and Windows (known as traceroute in Unix-like operating
systems) is a useful tool for diagnosing network issues. It allows you to view a listing of how a
network packet travels through the network and where it may fail or slow down. Using this
information you can determine the computer, router, switch or other network device possibly
causing your network issues.
host
solves a host name into an Internet Protocol (IP) address or an IP address into a host name.
the hostname command is used to show or set a computer\'s host name and domain name. It is
one of the most basic of the network administrative utilities.
A host name is a name that is assigned to a host (i.e., a computer connected to the network) that
uniquely identifies it on a network and thus allows it to be addressed without using its full IP
address. Domain names are user-friendly substitutes for numeric IP addresses.
The basic syntax for the hostname command is
hostname [options] [new_host_name]
2)TCP/IP protocols map to a four-layer conceptual model known as the DARPA model , named
after the U.S. government agency that initially developed TCP/IP. The four layers of the DARPA
model are: Application, Transport, Internet, and Network Interface. Each layer in the DARPA
model corresponds to one or more layers of the seven-layer Open Systems Interconnection (OSI)
model.
Network Interface Layer
The Network Interface layer (also called the Network Access layer) is responsible for placing
TCP/IP packets on the network medium and receiving TCP/IP packets off the network medium.
TCP/IP was designed to be independent of the network access method, frame format, and
medium. In this way, TCP/IP can be used to connect differing network types. These include
LAN technologies such as Ethernet and Token Ring and WAN technologies such as X.25 and
Frame Relay. Independence from any specific ne.
Difference between OSI Layer & TCP/IP LayerNetwax Lab
Difference between OSI Layer & TCP/IP Layer
TCP/IP OSI
It has 4 layers. It has 7 layers.
TCP/IP Protocols are considered to be standards
around which the internet has developed.
OSI Model however is a "generic, protocolindependent standard."
Follows Vertical Approach Follows Horizontal Approach
In TCP/IP Model, Transport Layer does not
Guarantees delivery of packets.
In OSI Model, Transport Layer Guarantees
delivery of packets.
Power point presentation on osi model.
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Lesson 13University of the CumberlandsProfessor Dr. I.docxsmile790243
Lesson 13
University of the Cumberlands
Professor: Dr. Irvin R. Heard
Course: ISOL 634 Physical Security (20-21)
Reading AssignmentChapter 17
Individual Project 13
Identify and discuss the seven layers of the Open System Interconnection (OSI) model and their importance on TCP/IP operation.
Minimum two pages.
Helpful topics to research:OSI LayersHow TCP/IP WorksTCP/IP Operates on Open Systems Interconnection Levels 3 (IP) and 4 (TCP) TCP/UDP/RTP User Datagram Protocol TCP/IP Address Schemes
Open Systems Interconnection (OSI) Reference ModelLayer 7--Application layerLayer 6--Presentation layerLayer 5--Session layerLayer 4--Transport layerLayer 3--Network layerLayer 2--Data Link layerLayer 1--Physical layer
OSI – Upper and Lower LevelsThe seven layers of the OSI reference model can be divided into two categories: upper layers and lower layers.The upper layers of the OSI model deal with application issues and generally are implemented only in software. The highest layer, application, is closest to the end user. Both users and application-layer processes interact with software applications that contain a communications component. The term upper layer is sometimes used to refer to any layer above another layer in the OSI model.The lower layers of the OSI model handle data transport issues. The physical layer and data-link layer are implemented in hardware and software. The other lower layers generally are implemented only in software. The lowest layer, the physical layer, is closest to the physical network medium (the network cabling, for example, and is responsible for actually placing information on the medium.
TCP/IP
The networking industry uses the OSI seven layer model as a standard, however before that was a standards TCP/IP was being developed (OSI was just completed first and adopted). Both models have similar goals. Its often to see developers apply OSI terminology to TCP/IP.
Similarities
The most compatible aspects at the Transport and Internet layers (called the Network in OSI)
TCP/UDP/RTP
Click the titles to review resourcesTransportation Protocols: UDP,TCP & RTPTeach Yourself TCP/IP in 24 hrs (Book)
TCP/IP Address SchemesTCP/IP includes an Internet addressing scheme that allows users and applications to identify a specific network or host to communicate with. An Internet address works like a postal address, allowing data to be routed to the chosen destination. TCP/IP provides standards for assigning addresses to networks, subnetworks, hosts, and sockets, and for using special addresses for broadcasts and local loopback.
Internet addresses are made up of a network address and a host (or local) address. This two-part address allows a sender to specify the network as well as a specific host on the network. A unique, official network address is assigned to each network when it connects to other Internet networks. However, if a local network is not going to connect to other Internet networks, it can be assigned any ...
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
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At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
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https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
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However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Dr. Sean Tan, Head of Data Science, Changi Airport Group
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Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
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• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
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Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
2. Objectives
TheOSI
Seven Layer Model
The TCP/IP 4 Layer Model
TCP/IP
Counting in Binary
IP Addresses
Subnet Masks
RFC1918
3. The OSI Reference Model
In the early 1980s, the International Standards Organization (ISO)
developed the Open Systems Interconnect (OSI) reference model to
standardize the way devices communicate on a network. This model was
a major step toward ensuring interoperability between network devices.
A system that implements protocol behaviour consisting of a series of
these layers is known as a protocol stack. Protocol stacks can be
implemented either in hardware or software, or a combination of both.
Typically, only the lower layers are implemented in hardware, and the
higher layers are implemented in software. Each layer is responsible for
part of the processing to prepare data for transmission on the network. The
chart shows what each layer of the OSI model does.
In the OSI model, when data is transferred, it is said to virtually travel down
the OSI model layers of the sending computer and up the OSI model
layers of the receiving computer.
When a user sends data, such as an email, the encapsulation process
starts at the application layer. The application layer provides network
access to applications. Information flows through the top three layers and
is considered to be data when it gets down to the transport layer.
4.
5. The TCP/IP Model
An architectural model is a common frame of reference for
explaining Internet communications and developing
communication protocols. It separates the functions of protocols
into manageable layers. Each layer performs a specific function in
the process of communicating over a network.
The TCP/IP model was created by researchers in the U.S.
Department of Defense (DoD). The TCP/IP suite of protocols is the
dominant standard for transporting data across networks and the
Internet. It consists of layers that perform functions necessary to
prepare data for transmission over a network. The chart shows the
four layers of the TCP/IP model.
A message begins at the top application layer and moves down
the TCP/IP layers to the bottom network access layer. Header
information is added to the message as it moves down through
each layer and is then transmitted. After reaching the destination,
the message travels back up through each layer. The header
information that was added to the message is stripped away as
the message moves up through the layers toward its destination.
6.
7.
8. The models together
The OSI model and the TCP/IP model are both
reference models used to describe the data
communication process. The TCP/IP model is used
specifically for the TCP/IP suite of protocols, and
the OSI model is used for the development of
standard communication for equipment and
applications from different vendors.
The TCP/IP model performs the same process as
the OSI model, but uses four layers instead of
seven. The chart shows how the layers of the two
models compare.
9. TCP/IP
Transmission Control Protocol/Internet Protocol
(TCP/IP) defines the rules computers must follow to
communicate with each other over the Internet. TCP
is the primary Internet protocol for the reliable
delivery of data. IP provides an addressing structure
that is responsible for delivering data from the source
computer to the destination computer.
An IP address is a number that is used to identify a
device on the network. Each device on a network
must have a unique IP address to communicate with
other network devices. As noted earlier, a host is a
device that sends or receives information on the
network. Network devices are devices that move
data across the network.
10. TCP/IP
A person's fingerprints usually do not change. They provide a way
to physically identify people. The mailing address of a person can
change, as it relates to where the person lives or picks up mail. This
address can change. On a host, the Media Access Control (MAC)
address is assigned to the host NIC and is known as the physical
address. The physical address remains the same regardless of
where the host is placed on the network, in the same way that
fingerprints remain with the person regardless of where the person
goes. MAC addresses consist of 6 groupings of 2 hexadecimal
values separated by either a dash (-) or a colon (:), for example, 0026-6C-FC-D5-AE. Hexadecimal values are defined as a range of the
numbers from 0-9 and the letters a-f.
The IP address is similar to the mailing address of a person. It is
known as a logical address because it is logically assigned based
on the host location. The IP address, or network address, is based
on the local network and is assigned to each host by a network
administrator. This process is similar to the local government
assigning a street address based on the logical description of the
city or village and neighbourhood.
11. TCP/IP v4
An IPv4 address consists of a series of 32 binary bits (ones
and zeros). It is difficult for humans to read a binary IPv4
address. For this reason, the 32 bits are grouped into four
segments of 8 bits called octets. An IPv4 address, even in
this grouped format, is hard for humans to read, write, and
remember. Therefore, each octet is presented as its
decimal value, separated by a decimal point or period.
This format is referred to as dotted-decimal notation.
When a host is configured with an IPv4 address, it is entered
as a dotted-decimal number, such as 192.168.1.5. Imagine
if you had to enter the 32-bit binary equivalent of this:
11000000101010000000000100000101. If just one bit were
mistyped, the address would be different, and the host
might not be able to communicate on the network.
12. TCP/IP v4
The logical 32-bit IPv4 address is hierarchical and is
composed of two parts. The first part identifies the
network, and the second part identifies a host on
that network. Both parts are required. For example,
if a host has the IPv4 address 192.168.18.57, the first
three octets, 192.168.18, identify the network
portion of the address, and the last octet, 57
identifies the host. This is known as hierarchical
addressing, because routers only need to
communicate with networks and not individual
hosts. A router is a networking device that forwards
data packets across networks toward their
destinations.