Network Fundamentals - Week 2.pptx
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The document discusses key concepts in e-business infrastructure including definitions of e-business and e-commerce, reasons for adoption and barriers to adoption. It also outlines challenges of managing e-business. Specific infrastructure components covered include intranets and extranets, middleware, firewalls, demilitarized zones (DMZs), network protocols, domain names, HTML, XML, and JSON.
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fmxhnkmcjbg,lBasics of network
This document provides an overview of basic computer networking concepts. It defines what a computer network is and describes the typical components that make up a network, including servers, clients, networking cards, connection media, and network operating systems. It also discusses different types of networks like LANs, WANs, MANs, and VPNs. The document explains common network architectures like Ethernet, Fast Ethernet, Token Ring, and FDDI. It also covers important networking protocols, network cables, and the OSI model layers. The summary aims to concisely convey the key topics and concepts covered in the document.
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Cn
A computer network connects two or more computers so that users can share files, printers, and other resources. The document defines different types of networks including LANs for local connections, WANs for wide area connections across locations, and the Internet for global connections. It also explains common network components like servers, clients, and networking protocols.
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This document provides an overview of basic computer networking concepts. It defines what a computer network is and describes the typical components that make up a network, including servers, clients, networking cards, connection media, and network operating systems. It also discusses different types of networks like LANs, WANs, MANs, and VPNs. The document explains common network architectures like Ethernet, Fast Ethernet, Token Ring, and FDDI. It also covers important networking protocols, network cables, and the OSI model layers. The summary aims to concisely convey the key topics and concepts covered in the document.
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Introduction to networks
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Introduction
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In addition to the design this discussion will review the flow of data throughout the network to reveal security features that create that in depth design to protect any organization with similar requirements. I will first review the network diagram with physical features, locations, and Internet speeds; then discuss in depth, security features from each of the seven network domains (user, workstation, Local Area network (LAN), LAN-to-Wide Area Network (WAN), Remote Access, WAN, and Systems/Applications) and how they will be incorporated throughout the design and infrastructure of the network.
The objective is to implement these features to enforce the confidentiality, integrity, availability, privacy, authenticity, authorization, non-repudiation, and accounting. (Stewart, J. M., 2011).
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1. Name a company that uses data as a source of competitive advantage. Justify your response.
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3. Define the following terms: table, record, field. Provide another name for each term, as well as an example.
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Published by Flat World Knowledge, Inc.
© 2014 by Flat World Knowledge, Inc. All rights reserved. Your use of this work is subject to the License Agreement available
here http://www.flatworldknowledge.com/legal. No part of this work may be used, modified, or reproduced in any form or by
any means except as expressly permitted under the License Agreement.
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Describe certain aspects of the Internet infrastructure that are fault-tolerant and support load balancing.
Discuss the role of hosts, domains, IP addresses, and the DNS in making the Internet work.
HOW THE INTERNET WORKS
Internet service provider (ISP): Organization or firm that provides access to the internet.
Connect to one another, exchanging traffic.
Ensure that messages can get to any other computer that’s online and willing to communicate.
Uniform Resource Locator (URL)
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Hypertext transfer protocol: Application transfer protocol that allows Web browsers and Web servers to communicate with each other.
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DEFENSE IN DEPTH
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Introduction
The objective of this paper is to visually display a defense in depth model and explain features that will encourage an overall layered defense tactic to strategically mitigate against potential threats. The network is comprised of a corporate site in Chicago where all servers are located to include: Web server, file server, print server, mail server, and ftp server. This connection to the Internet has a speed of 50mbps with 300 employees that have access to the Internet, as well as local and corporate resources. There is also one remote site that is 8 miles away with 20 employees that need access to all resources at corporate as well as an Internet connection with the limitation of 3mbps. In this design all network devices will be utilized to include: routers, switches, hubs, firewalls, VPN’s, and proxies. Along with the devices being displayed the interconnections between these devices will be shown, the end user (client) devices (desktops, laptops), and the Internet cloud, which will generically be shown to represent the network’s interface to the Internet.
In addition to the design this discussion will review the flow of data throughout the network to reveal security features that create that in depth design to protect any organization with similar requirements. I will first review the network diagram with physical features, locations, and Internet speeds; then discuss in depth, security features from each of the seven network domains (user, workstation, Local Area network (LAN), LAN-to-Wide Area Network (WAN), Remote Access, WAN, and Systems/Applications) and how they will be incorporated throughout the design and infrastructure of the network.
The objective is to implement these features to enforce the confidentiality, integrity, availability, privacy, authenticity, authorization, non-repudiation, and accounting. (Stewart, J. M., 2011).
Network Design, Data Flow, and Security Features
The network design features the corporate headquarters site in Chicago that includes within the Information Technical (IT) department is a database server, an FTP server, application server, web server, email server, print server, and 30 workstations. The database server utilizes role-based access features as well as two-factor authentication for server and user access (Common Access Card and username/password). The FTP server utilizes the TCP protocols and is within the internal network with additional firewall rules, routing policies that limit open ports, and internal training on how to locate potential threats for the IT department to monitor. The Webserver must be held in the DMZ to allow additional port access to utilize the Internet. The email and print servers are also located within the internal network.
Outside of the IT Department, this organization has six departments that are on three floors that include45 workstations and 5 printers per department. Each department is interconnected to corporate resources ...
Chapter 2
The document discusses communication over networks and introduces several key concepts:
1. It describes the basic elements of communication including a source, destination, and channel. It notes devices communicate in the same way with senders, receivers, and a pathway.
2. It discusses how segmenting data into smaller packets allows for multiplexing of different transmissions and increases reliability over the network by allowing alternate paths if one fails.
3. It introduces the different components that make up a network including end devices, intermediary devices, and different types of media that provide the channel for communication.
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This document provides an overview of key concepts in network communication, including:
- The three basic elements of communication are a message source, destination, and channel. Data is segmented for transmission and multiplexed across the network.
- Network devices include end devices like hosts/PCs and intermediary devices like switches and routers that direct data flow. Media like wires and wireless carry signals between devices.
- Models like OSI and TCP/IP organize the functions involved in network communication into logical layers to standardize protocols.
Middleware Technologies ppt
The document discusses middleware technologies, providing an overview of middleware categories and services. It describes middleware as software that connects diverse computer systems and formats. The main categories of middleware services discussed are data management, communication, distribution, object management, application cooperation, presentation, and system management services. Examples of specific middleware technologies like CORBA, COM/DCOM, and TAPI are also summarized. The document outlines some advantages of middleware like enabling real-time access and streamlining processes, as well as disadvantages such as high costs and immature products.
You Name Here1. Name a company that uses data as a source of c.docx
You Name Here
1. Name a company that uses data as a source of competitive advantage. Justify your response.
2. Define dynamic pricing (in your own words) and provide an example not found in the text.
3. Define the following terms: table, record, field. Provide another name for each term, as well as an example.
4. Why would a firm use a loyalty card? What is the incentive for the firm? What is the incentive for consumers to opt in and use loyalty cards? What kinds of strategic assets can these system create?
5. Make a list of the kind of data you might give up when using a cash register, a Web site, or a loyalty card, or when calling a firm’s customer support line. How might firms leverage this data to better serve you and improve their performance?
6. What is HIPPA? What industry does it impact?
7. How might information systems impact mergers and acquisitions? What are the key issues to consider?
8. Find the Web page for your school’s information systems department. What is the URL that gets you to this page? Label the host name, domain name, path, and file for this URL. Are their additional subdomains? If so, indicate them, as well.
9. What is the difference between TCP and UDP? Why would you use one over the other?
10. Research online for the latest country rankings for broadband service. Where does the United States currently rank? Why?
Published by Flat World Knowledge, Inc.
© 2014 by Flat World Knowledge, Inc. All rights reserved. Your use of this work is subject to the License Agreement available
here http://www.flatworldknowledge.com/legal. No part of this work may be used, modified, or reproduced in any form or by
any means except as expressly permitted under the License Agreement.
Information Systems: A Manager’s Guide to Harnessing Technology V 3.0
By John Gallaugher
Chapter 14
A Manager’s Guide to the Internet and Telecommunications
Learning Objectives
Describe how the technologies of the Internet combine to answer these questions: What are you looking for? Where is it? And how do we get there?
Interpret a URL, understand what hosts and domains are, describe how domain registration works, describe cybersquatting, and give examples of conditions that constitute a valid and invalid domain-related trademark dispute.
Describe certain aspects of the Internet infrastructure that are fault-tolerant and support load balancing.
Discuss the role of hosts, domains, IP addresses, and the DNS in making the Internet work.
HOW THE INTERNET WORKS
Internet service provider (ISP): Organization or firm that provides access to the internet.
Connect to one another, exchanging traffic.
Ensure that messages can get to any other computer that’s online and willing to communicate.
Uniform Resource Locator (URL)
Protocol: Enables communication by defining the format of data and rules for exchange.
Hypertext transfer protocol: Application transfer protocol that allows Web browsers and Web servers to communicate with each other.
S.
Network architecture
This document discusses network architecture and design. It covers component architectures including addressing/routing, network management, performance, and security architectures. It describes common addressing mechanisms like sub-netting, super-netting, dynamic addressing, private vs public addressing, VLANs, IPv4 vs IPv6, and network address translation. For routing, it discusses strategies like unicast, broadcast, multicast, anycast and geocast as well as routing protocols like BGP, mobile IP, and IGP confederations. The document provides an overview of network architecture concepts.
network fundamentals _Chapter 2 - Week 2and 3.pptx
The document discusses network communication and protocols. It begins by defining the basic elements of communication - a sender, receiver, and channel. It then covers topics like message segmentation, network components, end devices, media types, and network infrastructures. Finally, it discusses network protocols and models like TCP/IP. The key points are that communication requires a sender, receiver and channel; messages are segmented for efficiency; and protocols define rules for network communication in a standardized way.
Report on intranet
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- 2. Lecture Outcome Define the meaning and scope of e-business and e-commerce and their different elements. Summarize the main reasons for adoption of e-commerce and e-business and barriers that may restrict adoption Outline the ongoing business challenges of managing e-business and e- commerce in an organization
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- 5. Middleware Used to enable two applications that do not support common protocols to connect to each other. Transformation of different data types JSON vs XML Used in the integration of two or more smaller applications to form a larger application.
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- 7. De-Militarized Zone (DMZ) Network between Intranet and the Internet Hosts servers containing information available to public or Extranet users. Sensitive information is kept on Intranet which is separated by a Firewall.
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