Cisco 642-642 : Quality of Service (QoS)

Flexible operation

The operation of our 642-642 exam torrent is very flexible and smooth. Once you enter the interface and begin your practice on our windows software. You will easily find there are many useful small buttons to assist your learning. The correct answer of the 642-642 exam torrent is below every question, which helps you check your answers. We have checked all our answers. So you can check the answers breezily. In addition, the small button beside every question can display or hide answers of the 642-642 test answers. You can freely choose the two modes. At the same time, there is specific space below every question for you to make notes. So you can quickly record the important points or confusion of the 642-642 exam guides.

All of our considerate designs have a strong practicability. We are still researching on adding more useful buttons on our 642-642 test answers. The aim of our design is to improve your learning and all of the functions of our products are completely real. Then the learning plan of the 642-642 exam torrent can be arranged reasonably. You need to pay great attention to the questions that you make lots of mistakes. If you are interested in our products, click to purchase and all of the functions. Try to believe us and give our 642-642 exam guides a chance to certify.

Correct grading

The scoring system of our 642-642 exam torrent absolutely has no problem because it is intelligent and powerful. First of all, our researchers have made lots of efforts to develop the scoring system. So the scoring system of the 642-642 test answers can stand the test of practicability. Once you have submitted your practice. The scoring system will begin to count your marks of the 642-642 exam guides quickly and correctly. You just need to wait a few seconds before knowing your scores. The scores are calculated by every question of the 642-642 exam guides you have done. So the final results will display how many questions you have answered correctly and mistakenly. You even can directly know the score of every question, which is convenient for you to know the current learning condition.

Printable format of the PDF version

Some people prefer to read paper materials rather than learning on computers. Of course, your wish can be fulfilled in our company. We have PDF version 642-642 exam guides, which are printable format. You can print it on papers after you have downloaded it successfully. If you want to change the fonts, sizes or colors, you can transfer the 642-642 exam torrent into word format files before printing. There are many advantages of the PDF version. Firstly, there are no restrictions to your learning. You can review the 642-642 test answers everywhere. You spare time can be made good use. Secondly, you can make notes on your materials, which will accelerate your understanding of the 642-642 exam guides. In a word, our company seriously promises that we do not cheat every customer.

Cisco Quality of Service (QoS) Sample Questions:

1. When LLQ is being configured, which IOS command is used to limit the traffic rate on the priority queue even when the other class queues are not congested?

A) hold-queue
B) bandwidth
C) priority
D) police
E) queue-limit

2. Refer to the exhibit. Why would applying the limit-interactive policy-map to the fa0/0 interface as shown below cause an error?
interface fa0/0 service-policy input limit-interactive

A) Class-based policing can only be applied in the output direction.
B) The interactive traffic class is missing the bandwidth {kbps} command.
C) There is already an output service-policy defined on the fa0/0 interface.
D) The interactive class-map has not been configured.
E) TCP header compression can only be applied in the output direction.

3. Which two of the following statements about CBWFQ are correct? (Choose two.)

A) Each CBWFQ traffic class is policed using a congestion aware policer.
B) The class-default queue only supports WFQ.
C) CBWFQ services each class queue using a strict priority scheduler.
D) Inside a class queue, processing is always FIFO, except for the class-default queue.
E) The CBWFQ scheduler provides a guaranteed amount of minimum bandwidth to each class.

4. HOTSPOT

5. Based on the following Cisco Catalyst 2950 Series switch configurations, which additional command will enable these actions?
Traffic marked with a CoS of 6 or 7 will be serviced by the priority queue.
Traffic marked with a CoS of 0, 1, or 2 will have a 20-percent weight when serviced by the wrr queue.
Traffic marked with a CoS of 4 will have a 30-percent weight when serviced by the wrr queue.
Traffic marked with a CoS of 3 or 5 will have a 50-percent weight when serviced by the wrr queue.
Catalyst 2950 partial configuration:
no wrr-queue cos-map
wrr-queue cos-map 1 0 1 2
wrr-queue cos-map 2 4
wrr-queue cos-map 3 3 5
wrr-queue cos-map 4 6 7

A) wrr-queue bandwidth 15 25 10 0
B) wrr-queue bandwidth 10 15 25 0
C) wrr-queue bandwidth 1 20 30 50
D) wrr-queue bandwidth 1 10 15 25
E) wrr-queue bandwidth 15 25 10 1

Solutions: