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problem1. prepare down the name of various layers of OSI-7 model.

problem2. Show, by means of diagram, how the TCP/IP reference model is different from the OSI-7 reference model? Why is the TCP/IP model extensively used?

problem3. What is the function of Mail Access Protocol?

problem4. describe briefly the two download modes of POP3.

problem5. From an ISP’s point of view, POP3 and IMAP differ in a significant way. Imagine that you were called into advice an ISP on which protocol it should support. What considerations would you bring up?

problem6. Suppose that a new application layer protocol is developed for video conferencing application. Which transport layer protocol, between TCP and UDP, will you use and why?

problem7. Some features of TCP are listed below. Describe briefly how does TCP perform the following functions?

(i) Flow Control

(ii) Connection-oriented

(iii) Error/loss recovery

Computer Network & Security, Computer Science

  • Category:- Computer Network & Security
  • Reference No.:- M94580

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