Computer networks_Quiz-1

Which of the following is not a function of the Data Link Layer?

• Framing

• Error control

• Flow control

• Routing

Which technique is used for error detection in the Data Link Layer?

• Framing

• Parity Check

• Bit stuffing

• Acknowledgement

Flow control is necessary because:

• Data can get lost

• Sender may overflow receiver's buffer

• Data can be corrupted

• Signal strength may drop

In stop-and-wait protocol, sender sends:

• Multiple frames at a time

• One frame and waits for acknowledgment

• No frame

• Random frames

The sliding window protocol is used for:

• Error detection

• Error correction

• Flow control

• Routing

The term piggybacking refers to:

• Loading data onto a server

• Sending acknowledgment with data

• Multiplexing

• Error correction

In Go-Back-N ARQ, what happens when a frame is lost?

• Only the lost frame is retransmitted

• All frames are retransmitted

• All frames from the lost frame onward are retransmitted

• Sender stops transmission

Which topology uses a token passing method for media access?

• Star

• Bus

• Ring

• Mesh

Which topology connects each device to every other device?

• Bus

• Star

• Ring

• Mesh

In which topology does a central device control all traffic?

• Ring

• Star

• Mesh

• Bus