 Show Chapter 2 Review Questions 1. List the layers of the Internet model. Ans: The layers of TCP or Internet model are: i. Physical layer ii. Data link layer iii. Network layer iv. Transport layer and v. Application layer. 2. Which layers in the Internet model are the network support layers? Ans: Physical, data link, and network layers. 3. Which layer in the Internet model is the user support layer? Ans: In the Internet Model only Application layer supports the user. 4. What is the difference between network layer delivery and transport layer delivery? Ans: The transport layer is responsible for process-to-process delivery of the entire message, but the network layer oversees host-to-host delivery of individual packets. 5. What is a peer-to-peer process? Ans: Peer-to-peer processes are processes on two or more devices communicating at a same layer 6. How does information get passed from one layer to the next in the Internet model? Ans: Each layer calls upon, the services of the layer just below it using interfaces between each pair of adjacent layers. 7. What are headers and trailers, and how do they get added and removed? Ans: Headers and trailers are control data added at the beginning and the end of each data unit at each layer of the sender and removed at the corresponding layers of the receiver. They provide source and destination addresses, synchronization points, information for error detection etc. 8. What are the concerns of the physical layer in the Internet model? Ans: The physical layer is responsible for transmitting bits. Also it is concerned with a. physical topology b. representation of bits c. type of encoding d. synchronization of bits e. transmission rate and mode f. Line Configuration Which layer is responsible for host host delivery?Network Layer is the third layer of the OSI Model. It's responsible for source-to-destination or host-to-host delivery of packets across multiple networks. This layer takes the data from the transport layer, adds its header, and forwards it to the data link layer.
Which layer is responsible for source to destination delivery of entire message?The Transport layer is a true source-to-destination or end-to-end layer.
Which layer is responsible for process to process delivery of the message?The transport transport layer is responsible responsible for process-to- process delivery—the delivery of a packet, part of a message, from one process to another.
Which layer is responsible for delivery of data?Transport
The fourth layer of the OSI model ensures complete and reliable delivery of data packets.
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Which layer is responsible for delivery of the entire message from the source host to destination host?
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