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

1. Which two statements about IP SLA are correct? (Choose two.)

A) IP SLA uses NBAR to provide the reporting engine for statistics that it collects.
B) Cisco IOS IP SLA is Layer 2 transport independent.
C) Cisco IOS IP SLA can be used to help detail billing information for each defined class of service.
D) IOS IP SLA is a traffic monitoring mechanism that gathers statistics about traffic based on packet headers and fields.
E) IOS IP SLA uses active traffic monitoring which allows users to analyze service levels for IP applications.

2. 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) Establishing alarm thresholds for QoS problems can be complicated.
F) QoS issues can be difficult to detect when there is not enough traffic to trigger the configured QoS policy.

3. Refer to the exhibit.

You have implemented RFC 3270 Uniform mode in your MPLS network. A customer packet with the DSCP value of AF31 has been sent to the ingress PE router. The PE router has mapped the DSCP values into the MPLS experimental bits, but the policer has remarked the experimental bits of the top label. What will the DSCP value of the packet be when it leaves the egress PE router?

A) BE
B) CS1
C) AF31
D) CS3

4. When the RFC 3270 Uniform mode is used, the PHB at the egress router is based on which of these?

A) The MPLS VPN label EXP value.
B) The packet is re-evaluated, remarked, and the PHB is based on this new marking.
C) The Differentiated Services field value in the IP packet header.
D) The topmost MPLS label EXP value.

5. A customer is experiencing poor quality on voice connections coming from a particular branch office. Data on the service provider network capacity indicates that the devices serving that location are heavily oversubscribed. It will be months before planned expansions can be implemented. Which class-based traffic-shaping technique would be appropriate to consider implementing?

A) shaping to the configured average rate
B) shaping to the committed rate
C) shaping to the peak rate
D) shaping to the observed median rate

Solutions: