Cisco 642-785 : Maintaining Cisco Service Provider Quality of Service (MSPQS)

Three versions for your convenience

In order to meet a wide range of tastes, our company has developed the three versions of the 642-785 preparation questions, which includes PDF version, online test engine and windows software. According to your own budget and choice, you can choose the most suitable one for you. All popular official tests have been included in our study materials. So you can have wide choices. In fact, all of the three versions of the 642-785 practice materials are outstanding. You will enjoy different learning interests under the guidance of the three versions of study materials. Also, there will have no extra restrictions to your learning because different versions have different merits. All in all, you will not be forced to buy all versions. You have the final right to select. Please consider our 642-785 exam quiz carefully.

Real exam environment

Our windows software of the study materials are designed to simulate the real test environment. If you want to experience the real test environment, you must install our 642-785 preparation questions on windows software. Also, it only support running on Java environment. If you do not install the system, the system will automatically download to ensure the normal operation. Most people are nervous and anxious to take part in the 642-785 exam for the first time. Then it is easy for them to make mistakes. So it is important to get familiar with the real test environment. Also, the real test environment of the study materials can help you control time. After all, you must submit your practice in limited time in 642-785 practice materials.

Successful people are never satisfying their current achievements. So they never stop challenging themselves. If you refuse to be an ordinary person, come to learn our 642-785 preparation questions. Our study materials will broaden your horizons and knowledge. Many people have benefited from learning our study materials. Most of them have realized their dreams and became successful. If you are still afraid of trying our 642-785 exam quiz, you will never have a chance to grow. Opportunities are always for those who prepare themselves well. The only way to harvest wealth is challenging all the time. Our 642-785 practice materials are waiting for you. Cheer up for yourself.

Automatic generation of the report

Once you submit your practice, the system of our 642-785 exam quiz will automatically generate a report. The system is highly flexible, which has short reaction time. So you will quickly get a feedback about your exercises of the 642-785 preparation questions. Before you choose to end your practices of the study materials, the screen will display the questions you have done, which help you check again to ensure all questions of study materials are well finished. The report includes your scores of the 642-785 practice materials. Also, it will display how many questions of the study materials you do correctly and mistakenly. In a word, you can compensate for your weakness and change a correct review plan of the study materials. Our online 642-785 exam quiz is intelligent and powerful. It deserves your choice.

Cisco 642-785 Exam Syllabus Topics:

Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) Sample Questions:

1. Refer to the exhibit.

Traffic in CLASS-B is not getting a minimum bandwidth of 192 kb/s in this policy map. What can be done to correct this?

A) No changes are needed, the site is already correct.
B) Set the shape rate to a CIR higher than 192 kb/s.
C) Decrease the maximum queue size.
D) The shape peak command should be used instead of the shape average command.

2. Refer to the exhibit.

A customer reports that data between their sites across your network is very slow and that
voice and video quality are unacceptable. Packet traces of data coming in from and going out to the customer confirm that many packets are being dropped in your network, and many of those that are not dropped are being remarked to CS1. Class maps and a policy map configured as shown are applied inbound to the Fast Ethernet interfaces that connect the customer. What could be the problem?

A) The match criteria is DSCP and the customer packets are being sent marked using IP precedence.
B) The CIR and PIR values appear to have been configured using kbps when the entries are bps.
C) The customer data is being rate limited, but is not being queued by class, which is causing tail drops and packet remarking.
D) All traffic is matching the class class-default, because all other classes are match-all with multiple match criteria.

3. A service provider will apply this policy at which of these interfaces?
interface Gi1/1 service-policy output SP-POLICY ! policy-map SP-POLICY class TRAFFIC-CLASS-1 police rate percent 20 conform-action transmit exceed-action drop priority ! class TRAFFIC-CLASS-2 bandwidth percent 50 queue-limit 800 ms random-detect exp 3 280 ms 490 ms ! class class-default queue-limit 500 ms random-detect exp 1 200 ms 350 ms random-detect exp 0 100 ms 200 ms ! end-policy-map ! class-map match-any TRAFFIC-CLASS-1 match dscp ipv4 45 ef cs6 match mpls experimental topmost 5 6 end-class-map ! class-map match-any TRAFFIC-CLASS-2 match dscp ipv4 cs2 af21 af23 af31 af32 af33 35 37 match mpls experimental topmost 3 end-class-map !

A) CE interface toward PE
B) PE interface toward P
C) P interface toward PE
D) PE interface toward CE

4. DRAG DROP
Drag and drop mechanisms on the left to their corresponding uses on the right. Some mechanisms may not used.

5. Within a QoS policy-map configuration, one of the traffic classes is configured with the random-detect dscp-based configuration command. What will that command accomplish?

A) provides congestion avoidance by selectively delaying the delivery of packets with lower DSCP priority
B) provides congestion management by queueing the traffic using LLQ
C) decreases the probability of congestion by selectively dropping TCP packets before the queue is full
D) provides congestion management by queueing the traffic using CBWFQ
E) decreases congestion by avoiding global UDP synchronization

Solutions: