Cisco 642-785

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Cisco 642-785 Exam Syllabus Topics:

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

1. Which three items are important when monitoring service quality in the SP network? (Choose three.)

A) Collection of data to detect QoS issues is slow and labor-intensive.
B) Troubleshooting class map configurations is complex and frequently required.
C) The typical cause of QoS issues is intermittent failure of network devices and these are inherently difficult to detect.
D) QoS support differs from device to device, depending on underlying hardware platforms and software.
E) QoS issues can be difficult to detect when there is not enough traffic to trigger the configured QoS policy.
F) Establishing alarm thresholds for QoS problems can be complicated.

2. Refer to the exhibit.

Which queueing method has been configured?

A) CBWFQ
B) priority queueing
C) LLQ
D) MDRR
E) WFQ

3. A service provider recently changed from RFC 3270 Uniform mode to Pipe mode. Which three considerations about this change are true? (Choose three.)

A) The Pipe mode provides the isolation between the customer and provider DiffServ domains, while maintaining a simpler support model.
B) The Short Pipe mode derives the outbound classification of the WRED and WFQ based on the DiffServ policy of the provider.
C) In Uniform mode, when the topmost EXP value is changed, the changed EXP value will propagate to the original IP precedence or DSCP.
D) If the provider moved to a Short Pipe mode model, it would allow them to implement customer-specific QoS policy on the PE egress.

4. What are three benefits of IntServ and RSVP? (Choose three.)

A) IntServ networks will reject or downgrade new RSVP sessions if all reservable bandwidth is booked somewhere in a path.
B) RSVP helps network devices identify dynamic port numbers.
C) RSVP signaling is a scalable way to ensure all devices maintain an accurate picture of the network state.
D) They enable the network to guarantee necessary QoS to individual data flows.
E) The IntServ class-based approach is easy to design and implement.

5. Which Cisco IOS command will show a summary of probes?

A) show ip sla configuration
B) show ip sla monitors
C) show ip sla responder
D) show ip sla statistics

Solutions: