Multiple choice

The HDLC _________ field defines the beginning and end of a frame.

  1. flag

  2. address

  3. control

  4. FCS

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The HDLC (High-Level Data Link Control) protocol uses a flag field (01111110 in binary) to mark both the beginning and end of each frame. This allows the receiver to synchronize and identify frame boundaries in the bit stream.