Chapter 36

Question 1

What is re transmission technique

Answer 1

Send message and start a timer. The receiver receives message and send message for timer. It is useful for packet lost and delay.

Question 2

How long should be the timer of re transmission

Answer 2

It depends on 2 things

1. Distance between the 2 computer
2. The condition of internet connection/path

Question 3

In what condition timer time was fixed for re transmission

Answer 3

In small LAN. Not for internet

Question 4

What is window in transmission

Answer 4

During transmission, buffer available space is also communicated. It is known as window.

Question 5

What is windows advertisement

Answer 5

The message carries buffer available space is called windows advertisement.

Question 6

What is 3 way handshake

Answer 6

For good connection start up and graceful connection shut down TCP uses sequence of 3 messages. These 3 messages uses in both cases of connection setup and connection shut down, The exchange of these 3 messages is known as 3 way handshake.

Question 7

What is synchronized message / sync message

Answer 7

3 ways handshake message used for connection establishment are known as synchronized message / sync message.

Question 8

What is finish / fin message

Answer 8

3 ways handshake message used for connection shutdown are known as finish / fin message.

Question 9

What is segment

Answer 9

TCP message is known as segment

Question 10

What is adaptive re transmission

Answer 10

Re transmission over internet where time is not constant. It is adaptive.