module04 - Module 4: Network and transport layers Preview...

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Module 4: Network and transport layers Preview In the last module, you studied the physical and data link layers and learned that the data link layer is responsible for moving a message from one physical network device to the next. Moving higher up in the structure, the network and transport layers are responsible for the overall addressing and routing that moves the message from end to end along its path. These two layers are very closely related and will be studied together in this module. Knowledge objectives z Describe the functions and responsibilities of the transport and network layers. z Evaluate the different transport and network layer protocols, and defend the popularity of TCP/IP as a standard protocol set. z Explain how port addresses are used and why they are important. z Describe the process of packetizing a message. z Differentiate between connection-oriented and connectionless messaging, and identify the types of packets used by each. z Explain Quality of Service routing, and determine when it is useful. z Describe how application layer, network layer, and data link layer addresses are assigned and used. z Explain the purpose and use of subnets in network management. z Explain how dynamic addressing is used as a network management tool. z Explain the process of address resolution. z Relate internal and external addresses to the need for network address translation (NAT). z Describe the basic routing process. z Distinguish between internal and external routing protocols. z Differentiate between centralized and decentralized, as well as static and dynamic, routing and evaluate the uses of each option. Skill competencies z Determine whether two computers are on the same subnet. z Distinguish whether an address is related to the application layer, network layer, or data link layer. z Use ping and traceroute to perform basic troubleshooting on a computer’s network connection. z Determine the TCP/IP configuration for a Windows-based computer. Professional values z Evaluate how the trend toward standardized transport and network
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layer protocols is impacting the strategic decisions of businesses. z Evaluate the ethical implications of maintaining IPv4 addresses that are not being used by your organization. Topics 4.1 Network and transport layer functions and protocols 4.2 Transport layer functions 4.3 Addressing 4.4 Routing 4.5 TCP/IP example 4.6 Implications for management Assignment preview At the end of this module, you will be required to complete (and submit for marking) an assignment comprising multiple-choice, issue/scenario, and online research questions. You may need to go online to do some research in order to be able to complete some questions. Reading and resources
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module04 - Module 4: Network and transport layers Preview...

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