CN 04/08/2020

The _________frame tells the sender to retransmit a damaged frame

• NRK

• NAK

• NBK

Both ACK & NAK frames must be ______________ for identification

• position

• numbered

• acknowledge

The sending device in sliding window ARQ is equipped with __________ to enable it to handle lost acknowledgments.

• a timer

• a acknowledge

• a ticket

Go-Back-n ARQ Method:if one frame is lost or damaged, all frames are sent since the last frame acknowledged are retransmitted.

• False

• True

EXPAND MAC

MEDIUM ACCESS SUBLAYER is basically dedicated to the broadcast networks

• True

• False

Medium access Control (MAC) protocol is used to provide the basic functionality of data link layer of the ___________ LAN system.

• Internet

• Ethernet

• Intranet

Expand LLC

Expand CRC

MAC halts the transmission if it senses a collision and tries to re-transmit it, and at the same time it sends a jam signal over the media.

• True

• False