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CCNP SWITCH Practice Exam:

Quality Of Service (QoS) #2

Here's the second in a series of CCNP SWITCH practice exams on Quality Of Service to get you ready for CCNP exam success!

Answers can be found at the bottom of the page.

For plenty of additional CCNP SWITCH exam tutorials, videos, and practice exams, visit my CCNP SWITCH Tutorials page and my YouTube Cisco Certification Video Training page!

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CCIE #12999

"The Computer Certification Bulldog"

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The Only CCNP SWITCH Exam DVD From "The Computer Certification Bulldog" -- Chris Bryant, CCIE #12933.

Question 1:

Which of the following queueing stategies is considered the fairest to all traffic?

A. RED

B. WFQ

C. FIFO

D. WRED

Question 2:

What globally configured command enables QoS?

A. qos on

B. mls qos enable

C. mls qos

D. qos enable

Question 3:

The phrases "guaranteed rate" and "reserved path" describe what QoS model?

A. DiffServ

B. IntServ

C. FIFO

D. ProServ

E. YourServ

F. BestServ

Question 4:

The acronym "FIFO" describes what queueing strategy?

A. DiffServ

B. IntServ

C. WRED

D. Best-Effort

Question 5:

Classification and marking of data for QoS should be done at what layer of the Cisco Three-Layer Switching Model?

Question 6:

What is true of RED?

A. Congestion detected before the queue fills

B. Congestion detected when the queue is actually full only

C. Can consider CoS and IP Prec values

D. Doesn't use CoS and IP Prec

Answers right after this brief, important message!

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Answers:

1. "B". I'll certainly grant you that "fair" is a very relative term, but it does describe WFQ - Weighted Fair Queueing.

2. "C".

3. "B". Integrated Services offer a guaranteed rate and use RSVP to create reserved paths for high-priority traffic.

4. "D". FIFO = "first in, first out", and that's a perfect description of best-effort delivery.

5. When the data senders slow their transmission rate as a result of dropped segments, then accelerate that rate as packet drop slows, and then slow down again when segments are again dropped, that's Global Synchronization.

6. "A,C". RED does detect congestion before the queue is actually full, and RED can be configured to consider CoS and IP Prec.

For plenty of additional CCNP SWITCH practice exams, tutorials, and videos, just click that link for our CCNP SWITCH Exam Resource Center!