Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)

QUESTION NO: 1
In which situation would an administrator configure telephony services, but not configure any individual ephones?

A. Remotely located phones that are controlled by a third-party PBX B. Cisco Unified Communications Manager SRST fallback C. Phones that are controlled by Cisco Unified Communications Manager Express D. This is not a valid scenario. Ephones are always required. E. Cisco Unified Communications Manager Express with HSRP

Correct Answer: B

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QUESTION NO: 2
When troubleshooting poor VoIP call quality, which two tools should you use to measure the overall metrics? (Choose two.)

A. R-Factor B. quality of service C. signal-to-noise ratio D. mean opinion score E. quality of experience

Correct Answer: A,D

QUESTION NO: 3
You are configuring a Cisco Unified Border Element. What do you need to do to achieve address hiding?

A. Under the dial-peer configuration mode, issue the media flow-through command. B. Under the dial-peer configuration mode, issue the codec flow-through command. C. Under the voice service configuration mode, issue the media flow-around command. D. Activate the voice service voip command at the dial-peer configuration mode.

Correct Answer: A

QUESTION NO: 4
Which command correctly enables a trust of the existing differentiated services code point value coming into a switch?

A. switch(config-mls)#mls qos trust dscp B. switch(config-if)#mls dscp trust C. switch(config-mls)#dscp trust D. switch(config-if)#mls qos trust dscp

Correct Answer: D

QUESTION NO: 5
Which Cisco Unified Communications Manager component provides direct digital-to-digital conversion from one codec to another?

A. digital signal processor B. media converter C. coder D. media termination point

Correct Answer: A

QUESTION NO: 6
When configuring a voice gateway to provide DHCP to devices, which command is required for the first 10 IP addresses in the subnet 192.168.10.0/24 to be reserved for servers and gateways?

A. ip dhcp excluded-address 192.168.10.0/24 192.168.10.10/24 B. ip dhcp excluded-address 192.168.10.11/24 192.168.10.254/24 C. ip dhcp excluded-address 192.168.10.1 192.168.10.10 D. ip dhcp excluded-address 192.168.10.11 192.168.10.254 E. ip excluded-address 192.168.10.1 192.168.1.10 F. ip excluded-address 192.168.10.10 192.168.10.254

Correct Answer: C

QUESTION NO: 7
If a packet is marked with an IP precedence value of 011, what is the corresponding binary DSCP class-selector value?

A. 000011 B. 011000 C. 011010 D. 011100 E. 011110

Correct Answer: B

QUESTION NO: 8
What are the PHBs that DiffServ use?

A. AF, EF, and CS PHBs B. resource reservation and admission control C. default, AF, and EF PHBs D. default, AF, EF, and CS PHBs E. AF and EF PHBs

Correct Answer: D

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QUESTION NO: 9
Which two gateway protocols can be configured if you have Cisco 2600XM or 3700 Series Multiservice Routers installed? (Choose two.)

A. SIP B. SCCP C. H.323 D. MGCP

Correct Answer: C,D

QUESTION NO: 10
Calls are failing to egress the local PSTN gateway that uses an E1 PRI circuit. Which debug command would be most useful in determining which dialed digits are being sent to the PSTN?

A. debug isdn q921 B. debug voice dial-peer C. ccapi inout D. debug isdn q931

Correct Answer: D

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QUESTION NO: 11
When a Session Initiation Protocol user agent client initiates a call to another user agent server, what is the first message type that is sent to the Cisco SIP Proxy Server?

A. initiate B. trying C. setup D. invite

Correct Answer: D

Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) - 642-437 Exam Questions