1.What is the purpose of the qos preclassify
command?
A. to enable the IOS to copy the ToS field from the original IP header to the outer tunnel IP header
B. to enable the IOS to copy the ToS field from the outer tunnel IP header back into the original IP header
C. to enable the IOS to classify the packet based on the original IP header instead of the tunnel IP header
D. to enable the IOS to classify the packet based on the outer tunnel IP header instead of the original IP
header
E. to enable classbased
marking on tunnel interface
F. to enable classbased
marking on IPSec crypto maps
Answer: C
2.What are two benefits of WFQ? (Choose two.)
A. WFQ is very easy to configure, and no manual traffic classification is necessary.
B. WFQ can provide fixedbandwidth
and fixeddelay
guarantees.
C. WFQ can provide fixedbandwidth
guarantees.
D. WFQ can provide fixeddelay
guarantees.
E. WFQ prevents the largevolume
flows with large packet size from starving out the lowvolume
flows
with small packet size.
F. Based on DSCP, WFQ allows weighted, random dropping of packets when the WFQ system is full.
Answer: AE
3.Based on the configuration, which two of the following statements are true? (Choose two.)
A. This configuration will use a single token bucket.
B. This configuration will drop all exceeding traffic.
C. This is a dualrate,
classbased
policing example.
D. This is a percentagebased
policing example.
E. This is a multiaction,
classbased
policing example.
Answer: CD
4.Based on the configuration, which two statements are true? (Choose two.)
A. The interactive traffic class will have a minimum bandwidth guarantee of 256 kbps.
B. The interactive traffic class will have a maximum bandwidth guarantee of 256 kbps.
C. If the interactive traffic class exceeds an average rate of 256 kbps, the traffic rate will be throttled down
to 128 kbps.
D. This configuration allows classbased
traffic shaping to lower the traffic rate in response to the BECN
bit.
E. The interactive traffic class will have a minrate
(mincir)
of 128 kbps. Answer: DE
5.Which technology is required when configuring FRF.12 on a Cisco device?
A. FRF11.c
B. FRF.8
C. VoFR
D. MLP with interleaving
E. FRTS
F. WRED
Answer: E
6.What are three methods of reducing delay for critical applications in a converged network? (Choose
three.)
A. Apply payload compression.
B. Increase link capacities.
C. Apply header compression.
D. Increase LFI fragment size.
E. Reduce interpacket
gaps.
F. Increase all queue depths.
Answer: ABC
7.At the network layer, IP packets are typically classified based on which three items? (Choose three.)
A. packet length
B. VLAN Identifier
C. flow control bits
D. source and destination IP addresses
E. content of the ToS byte
Answer: ADE
8.What are three reasons link efficiency mechanisms are deployed on WAN links? (Choose three.)
A. decrease delay
B. decrease jitter
C. increase link speed
D. increase throughput
E. decrease propagation delay
Answer: ABD
9.Which mechanism is used for the prioritizing, protection, and isolation of traffic based on marking?
A. classification and marking
B. congestion management
C. congestion avoidance
D. metering
E. policing
F. shaping
Answer: B
10.For which service is assured forwarding PHB used?
A. best effort
B. expedited forwarding
C. guaranteed bandwidth
D. class selector
Answer: C
11.Which three factors will affect processing delay? (Choose three.)
A. CPU speed
B. router architecture
C. queuing mechanism
D. type of media
E. IP switching method
F. distance of media
Answer: ABE
12.which four of the following bit values are used for bits 57
of the DSCP field to select AF PHB? (Choose
four.)
A. 000
B. 001
C. 010
D. 011
E. 100
F. 101
Answer: BCDE
Link : http://www.killtest.co.kr/CCIP/642-642.asp

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