Chapter 1 Homework - CNT 3004 - Chapter 1 Homework 1. A...

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CNT 3004 - Chapter 1 Homework 1. A POINT-TO-POINT connection provides a dedicated link between two devices 2. One of the primary disadvantages in a BUS topology is that one break in the cable media can stop all data transmissions on the network segment 3. The MEDIUM is the physical path over which a message travels 4. As the data packet moves from the upper to the lower layers, headers are ADDED 5. In the OSI model, as a data packet moves from the lower to the upper layers, headers are REMOVED . 6. In the OSI model, encryption and decryption are functions of the presentation layer 7. In the OSI model, what is the main function of the transport layer? PROCESS-TO-PROCESS MESSAGE DELIVERY 8. In the OSI model, when data is transmitted from device A to device B, the header from A’s layer 5 is read by B’s session layer 9. The physical address, also known as the link address, is the address of a node as defined by its LAN or WAN 10. The Physical layer changes bits into electromagnetic signals 11. The Transport layer lies between the network layer and the application layer 12. The Network layer adds a header to the packet coming from the upper layer that includes the logical addresses of the sender and receiver 13. The Data Link layer is responsible for moving frames from one hop (node) to the next. 14. The Internet model consists of 5 layers 15. The Internetworking Protocol (IP) is a _______ protocol 16. The OSI model consists of 7 layers 17. T he PHYSICAL layer is concerned with the movement of BITS over the physical medium 18. The process-to-process delivery of the entire message is the responsibility of the Transport layer 19. To deliver a message to the correct application program running on a host, the PORT ADDRESS must be consulted 20. When a host on network A sends a message to a host on network B, which address does the router look at? Logical 21. When data are transmitted from device A to device B, the header from A's layer 4 is read by B's Transport Layer 22. Which of the following is an application layer service? Remote log in, File transfer and access, mail
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Chapter 1 Homework - CNT 3004 - Chapter 1 Homework 1. A...

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