Computer Networks

Question

Que 1 In character-oriented protocol, we use __________

1.   Bit stuffing
2.   Byte stuffing
3.   Both
4.   None

Que 2 

which protocol has flow control but not error control?

1.   Stop-and-Wait
2.   Simplest
3.   Go-Back-N ARQ
4.   Selective-Repeat ARQ

Answer 1

(1) In character-oriented protocol, we use  Byte stuffing

• In Byte stuffing ,if delimiter comes in data part ,an escape character is added in data section.
• If escape character comes in data part, one more extra character is stuffed.

2. Stop-and-Wait protocol has flow control but not error control

Sender sends one frame, blocks until it receives acknowledgement from the receiver and then sends the next frame.

Comments

@sh!va Thanks but where we use bit stuffing....?

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@sahil, Bit stuffing is used in bit oriented protocols like HDLC.