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Cisco CCNP SP Operations 642-785 Maintaining Cisco Service Provider Quality of Service (MSPQS) Exams
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Cisco 642-785 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Quality of Service Fundamentals | - Traffic classification and marking - Service Provider QoS models and design |
| QoS Mechanisms in MPLS Networks | - RFC 3270 Uniform and Pipe modes - EXP and DSCP mapping |
| Service Provider QoS Implementation | - Policy maps and class maps - Implementing QoS on Cisco IOS routers |
| Congestion Management and Avoidance | - WRED configuration and behavior - WFQ, CBWFQ and Priority Queuing |
| Monitoring and Troubleshooting QoS | - QoS statistics and verification - IP SLA and performance measurement |
Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) Sample Questions:
Question #1
You have deployed IP SLA in your network to monitor VoIP. You want to be notified on network delay before it affects voice quality. What threshold should be set?
A. 150 ms one-way
B. 150 ms round trip
C. 200 ms round trip
D. 50 ms round trip
E. 250 ms one-way
Question #2
Where do service providers apply policy when traffic is leaving the customer network? (Choose two.)
A. Apply output policy on the PE interface toward CE, if CE is managed.
B. Apply output policy on the CE interface toward PE, if CE is managed.
C. Apply input policy on the PE interface toward CE, if CE is unmanaged.
D. Apply input policy on the PE interface toward CE, if CE is managed.
E. Apply input policy on the CE interface toward PE, if CE is unmanaged.
Question #3
Which Cisco IOS command lists all traffic classifications?
A. show policy-map
B. show service-policy
C. show class-map
D. show qos
Question #4
Refer to the exhibit.
Which two statements about the SP-REALTIME traffic class are true? (Choose two.)
A. The police configuration command is missing the violate-action option.
B. The priority configuration command is missing the maximum guaranteed bandwidth rate.
C. Traffic is policed to 35 percent of the interface bandwidth.
D. Traffic is queued using LLQ.
E. Traffic conforming to the police rate will be transmitted and all the markings on the packets will be cleared.
Question #5
Refer to the exhibit.
Which queueing method has been configured?
A. LLQ
B. WFQ
C. CBWFQ
D. MDRR
E. priority queueing
Solutions:
| Question #1 Correct Answer: A | Question #2 Correct Answer: B,C | Question #3 Correct Answer: C | Question #4 Correct Answer: C,D | Question #5 Correct Answer: C |







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