Transport Layer

Question 1

Main objective of transport layer

Answer 1

providing transparent transfer of data between hosts.

Question 2

Two essential properties of transport layer

Answer 2

Flow control

Session multiplexing

Question 3

what is Session multiplexing

Answer 3

host supporting multiple sessions & managing individual traffic over a single link.

Question 4

what is flow control

Answer 4

process of adjusting data sent from sender to ensure receiver can handle it.

Question 5

web traffic uses which port

Answer 5

80

Question 6

two types of protocol in transport layer

Answer 6

1) Transport control protocol

2) User Datagram Protocol

Question 7

three properties of TCP

Answer 7

1) Connection oriented uses three way handshake to establish connection
2) reliable
3) Performs flow control

Question 8

TCP three way handshake procedure

Answer 8

1) sender sends synchronized message
2) receiver sends synchronized acknowledgment
3) sender send back an acknowledgement

Question 9

if non latency is critical what protocol should be used to transfer data. what applications require no latency

Answer 9

UDP

audio and voice messages require minimal latency to have best quality

Question 10

Three properties of UDP

Answer 10

1) unreliable
2) doesn’t establish a connection
3) does not perform flow control