Question

preamble contains
2 bytes
6 bytes
7 bytes
4 bytes

Answer 1

Answer:

7 bytes

Explanation:

This is a pattern of alternative 0’s and 1’s which indicates starting of the frame and allow sender and receiver to establish bit synchronization. Initially, PRE (Preamble) was introduced to allow for the loss of a few bits due to signal delays. But today’s high-speed Ethernet don’t need Preamble to protect the frame bits.

Answer 2

Answer:

7 Bytes

Hope it helps you.