Congestion Control and Quality of Service Questions

MCQ bookmark_border

21.

In the __________ method, the signal is included in the packets that carry data.

A

backpressure

B

choke packet

C

implicit signaling

D

explicit signaling

Correct Answer: D

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

22.

In the ________ algorithm of TCP, the size of the congestion window increases exponentially until it reaches a threshold

A

slow-start

B

congestion avoidance

C

congestion detection

D

none of the above

Correct Answer: A

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

23.

In the _________ algorithm of TCP, the size of the congestion window increases additively until congestion is detected

A

slow-start

B

congestion avoidance

C

congestion detection

D

none of the above

Correct Answer: B

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

24.

In the ___________ algorithm of TCP, the size of the threshold is dropped to one-half, a multiplicative decrease

A

slow-start

B

congestion avoidance

C

congestion detection

D

none of the above

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

25.

In Frame Relay, the ________ bit warns the sender of congestion in the network

A

BECN

B

FECN

C

either (a) or (b)

D

neither (a) nor (b)

Correct Answer: A

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

26.

In Frame Relay, the ________ bit is used to warn the receiver of congestion in the network

A

BECN

B

FECN

C

either (a) or (b)

D

neither (a) nor (b)

Correct Answer: B

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

27.

Traditionally, ________types of characteristics are attributed to a flow

A

two

B

three

C

four

D

five

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

28.

_________ is a characteristic that a flow needs. Lack of it means losing a packet or acknowledgment, which entails retransmission.

A

Reliability

B

Delay

C

Jitter

D

Bandwidth

Correct Answer: A

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

29.

_______ is a flow characteristic that applications can tolerate in different degrees.

A

Reliability

B

Delay

C

Jitter

D

Bandwidth

Correct Answer: B

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

30.

. ________ is the variation in delay for packets belonging to the same flow.

A

Reliability

B

Delay

C

Jitter

D

Bandwidth

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion