EBK COMPUTER NETWORKING
EBK COMPUTER NETWORKING
7th Edition
ISBN: 8220102955479
Author: Ross
Publisher: PEARSON
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Chapter 2, Problem R16RQ
Program Plan Intro

POP3:

POP3 stands for Post Office Protocol 3 and is a client or server model in which email is received and held by the server.

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Suppose Alice with a Web-based e-mail account (such as Gmail) sends it message to Bob, who accesses his mail from his mail server using POP3. Discuss how the message gets from Alice's host to Bob's host. Be sure to list the series of application -layer protocols that are used to movethe message between the two hosts.
Suppose Alan, with a Web-based e-mail account (such as Gmail or Yahoo! Mail), sends a message to Benson, who accesses his mail from his mail server using POP3. Discuss how the message gets from Alan's host to Benson's host. Be sure to list the series of application-layer protocols that are used to move the message between the two hosts.
TCP / IP uses the client-server communication model, in which a user or computer (a client) receives a service (such as sending a web page) from another computer (a server) on the network. In short, the TCP / IP protocol suite is classified as stateless, which means that each client request is considered new because it has nothing to do with previous requests. Being stateless, network routes are released so that they can be used continuously. Answer the following questions briefly. How does resource reservation work in the TCP / IP model? Which TCP / IP layer is responsible to reserve resources across a network using the TCP / IP model? What protocol assigns an IP address to the client connected to the Internet? Checksum is used by various protocols on the Internet, but not at the one of TCP / IP Explain.
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