Question

A seven-octet pattern of alternating 0s and 1s used by the receiver to establish bit synchronization is a ________. select one:

a. source address
b. start frame delimiter
c. preamble
d. destination address

Answer 1

This is used in Ethernet and is called the preamble, answer C. The SFD mentioned in answer B is actually the last part of the preamble, so the receiver knows the real data is starting.