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Chapter 2

8a) The internet and Transport layer broad function is to transmit information across the internet.

b) Transport layer is engaged in the end to end communication between the end hosts. This is not handled by the internet layer. The internet layer administers the transmission of the packets through an internet.

c) The main internet layer standard is the Internet Protocol.

d) The transport layer fixes any errors that are created at lower layers i.e. from the internet, data link and physical layer and delivers error free data to the application program.

18a) IP is a connectionless protocol b) it is unreliable protocol. Even though it has a header checksum field which checks for errors but it simply discards it with out trying to fix the problem. There is only error detection not correction and so is not considered reliable.

Thought Questions

1) If the acknowledgment is lost the TCP sender retransmits the information. The sender receives the information a......

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