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Computer Networking : A Top-Down Approach

Computer Networking : A Top-down Approach

Authors:
James F. Kurose, Keith W. Ross
Exercise:
Review
Chapter:
Computer Networks And The Internet
Edition:
6
ISBN:
9780132856201
Question:
24

 

Question

What is an application-layer message? A transport-layer segment? A networklayer datagram? A link-layer frame?

Answer

Application layer message: HTTP, SMTP, and FTP protocols are used in application layer. it is used to send data over multiple end systems.

Transport layer segment​​​​​​​:  Transfer the content between two endpoints mainly. TCP and UDP protocols are used in transport layer.

Network layer datagram​​​​​​​:  Move the packets between any two hosts in the network. IP protocol is used in network layer.

link-layer frame​​​​​​​:  Move the packets from one node to the next another node. Point-to-point protocol (ppp) used in data link layer.

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