QUESTION 16
Which command should be included in order to trust the DSCP-marked traffic from the distribution layer?
A.mls qos trust cos
B.mls trust dscp-cos
C.mls qos trust dscp
D.mls qos trust dscp-cos
Answer: C
QUESTION 17
Refer to the exhibit. Your company’s QoS policy states that all traffic that is arriving at access layer switches from IP phones should be marked with a DSCP value of 46 and that all untagged traffic that is arriving from a PC that is attached to an IP phone should be marked with a CoS value of 1. Which two options will satisfy the requirements for the CoS-to-DSCP map and are the correct QoS commands? (Choose two.)
A.mls qos 1
B.mls qos map cos-dscp 0 10 18 26 34 46 48 56
C.mls qos cos 1
D.mls qos map dscp 0 8 16 26 32 40 48 56
E.mls qos map cos 0 8 18 26 40 48 50 56
F.mls qos dscp 1
Answer: BC
QUESTION 18
Calculate how many IP phone calls can be sent across a 64 kbps Frame Relay link that uses the 729 codec being sampled 50 times a second, 20 bytes a sample, and has 6 bytes of Frame Relay
header overhead with no checksum and uses header compression.
A.3
B.4
C.5
D.7
Answer: C
QUESTION 19
Which three methods are used by a Cisco Unified Border Element to provide network hiding? (Choose three.)
A.Back-to-back user agent, replacing all H.323-embedded IP addressing
B.IP network security boundary
C.Media flow-through
D.RSVP
E.IP network privacy and topology hiding
F.Intelligent IP address translation for RTP flows
Answer: BEF
QUESTION 20
Which of the following describes SIP Early Offer?
A.In SIP Early Offer mode, the SDP media capabilities are sent in the INVITE message of the calling device.
B.SIP Early Offer always uses session indicator 183.
C.In SIP Early Offer mode, the SDP media capabilities are sent in the 200 OK messages of the calling device.
D.In SIP Early Offer mode, the INVITE and the 200 OK messages use non-SDP message format to indicate SIP Early Offer.
Answer: A
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