Which of the following is true about the data link protocol,SDLC:
A) It is a client-server protocol developed by Compaq in 1996
B) It is a byte-count-oriented protocol
C) It uses a special bit pattern called a flag at the beginning and end of every frame (or packet)
D) It uses a contention media access control protocol
E) It does not have a problem with transparency

Question

Quizplus · Accepted Answer

SDLC uses a special bit pattern called a flag at the beginning and end of every frame (or packet). The other options are incorrect: A) is false as SDLC was developed by IBM, not Compaq in 1975. B) is false as SDLC is a bit-oriented protocol. D) is false as SDLC uses a point-to-point media access control protocol. E) is false as SDLC suffers from transparency issues because it does not support transparency by default, and the flag bits it uses may interfere with transmission.

Which of the Following Is True About the Data Link