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Performance Routing PfR

Question 1

Refer to the exhibit.


Which statement is true?

A. The Cisco PfR state is UP; however, the external interface Et0/1 of border router has exceeded the maximum available bandwidth threshold.
B. The Cisco PfR state is UP; however, an issue is preventing the border router from establishing a TCP session to the master controller.
C. The Cisco PfR state is UP and is able to monitor traffic flows; however, MD5 authentication has not been successful between the master controller and the border routers.
D. The Cisco PfR State is UP; however, the receive capacity was not configured for inbound traffic.
E. The Cisco PfR state is UP, and the link utilization out-of-policy threshold is set to 90 percent for traffic exiting the external links.


Answer: E

Question 2

Which three factors does Cisco PfR use to calculate the best exit path? (Choose three)

A. quality of service
B. packet size
C. delay
D. loss
E. reachability
F. administrative distance


Answer: C D E

Question 3

What can PfR passive monitoring mode measure for TCP flows?

A. only delay
B. delay and packet loss
C. delay and reachability
D. delay, packet loss, and throughput j E. delay, packet loss, throughput, and reachability


Answer: E

Question 4

Which three modes are valid PfR monitoring modes of operation? (Choose three)

A. route monitor mode (based on BGP route changes)
B. RMON mode (based on RMONv1 and RMONv2 data)
C. passive mode (based on NetFlow data)
D. active mode (based on Cisco IP SLA probes)
E. fast mode (based on Cisco IP SLA probes)
F. passive mode (based on Cisco IP SLA probes)


Answer: C D E

Comments (6) Comments
  1. Vik
    August 12th, 2014

    Anyone can explain q1
    Thanks 🙂

  2. fpaul
    September 11th, 2014

    In the exhibit at the end you will see
    External Interface
    Capacity (kbps)=500
    Max BW (kbps)=450—->this value are 90% from 500

  3. vik
    October 7th, 2014

    Thank fpaul 🙂

  4. Hamid Saffarzadeh
    December 6th, 2014

    Good links to understand:

  5. lew
    January 13th, 2015

    Why is it out-of-policy? Bandwidth used is 192kbps which is less thatn 450kbps and which makes it in-policy. Right?

  6. Yonk
    January 28th, 2015

    It doesn’t say the interface is out-of-policy. It says the out-of-policy threshold is set to 90%.

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