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Unformatted text preview: Chapter 2 Correct Answers: 1. What are the key functions of encapsulation? (Choose three.) allows modification of the original data before transmission identifies pieces of data as part of the same communication enables consistent network paths for communication ensures that data pieces can be directed to the correct receiving end device enables the reassembly of complete messages tracks delay between end devices 2. What is a primary function of the trailer information added by the data link layer encapsulation? supports error detection ensures ordered arrival of data provides delivery to correct destination identifies the devices on the local network assists intermediary devices with processing and path selection 3. Which two layers of the OSI model have the same functions as the TCP/IP model Network Access Layer? (Choose two.) Network Transport Physical Data Link Session 4. Which three statements best describe a Local Area Network (LAN)? (Choose three.) A LAN is usually in a single geographical area. The network is administered by a single organization. The connection between segments in the LAN is usually through a leased connection. The security and access control of the network are controlled by a service provider. A LAN provides network services and access to applications for users within a common organization. Each end of the network is generally connected to a Telecommunication Service Provider (TSP). 5. Refer to the exhibit. Which networking term describes the data interleaving process represented in the graphic? piping PDU streaming multiplexing encapsulation 6. What is the primary purpose of Layer 4 port assignment? to identify devices on the local media to identify the hops between source and destination to identify to the intermediary devices the best path through the network to identify the source and destination end devices that are communicating to identify the processes or services that are communicating within the end devices 1 7. What can be identified by examining the network layer header? the destination device on the local media the destination host address the bits that will be transferred over the media the source application or process creating the data 8. What is the purpose of the TCP/IP Network Access layer? path determination and packet switching data representation, encoding, and control reliability, flow control, and error detection detailing the components that make up the physical link and how to access it the division of segments into packets 9. Which layer encapsulates the segment into packets? physical data link network transport 10. Select the statements that are correct concerning network protocols. (Choose three.) define the structure of layer specific PDU's dictate how to accomplish layer functions outline the functions necessary for communications between layers limit hardware compatibility require layer dependent encapsulations eliminate standardization among vendors 11. What is a PDU?...
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This note was uploaded on 02/12/2012 for the course NETWORKING NETW204 taught by Professor Baig during the Spring '09 term at DeVry Addison.
- Spring '09