6 - TCP - layer role

Question 1

TCP help in sequencing by ?

Answer 1

sending 1 of 20 then 2 of 20 etc

Question 2

error checking - by ?

Answer 2

if No 5 segment is missing from (1 to 20) segment it will request or that specific one again

Question 3

flow control

Answer 3

I traic is coming in to quickly and too much is coming in at one time -

It will it will in form the other side to send it again with less load and less speed

Question 4

Reliability

Answer 4

It will get a Receipt or confirmation o delivery once it is done

Question 5

Source port and destination port ?

Answer 5

I multiple conversation are happening it will use source port and destination port to track and separate each communication

It also help identify types o connection that is trying to be established - eg port 23 telnet etc

Question 6

3 way Handshake

Answer 6

TCP - reliable
UDP - unreliable

TCP 3 way handshake
- is for confirmation with other side before transmitting data this is done on both sides

• SYN
• SYN ACK
• ACK