CCNA Voice 640-460 IIUC Real Exam Questions

Implementing Cisco IOS Unified Communications (Last day to test: February 28, 2011)

The 640-460 Implementing Cisco IOS Unified Communications (IIUC) exam is associated with the CCNA Voice certification. This exam confirms basic IP telephony installation, configuration, and maintenance skills by testing a candidate’s knowledge of implementing and configuring small- to medium sized IP Telephony solutions using Cisco Unified Communications Manager Express, Cisco Unity Express, and the UC500 Smart Business Communications System solutions.

1: What is the difference between voice VLAN and native VLAN?
A.Voice VLAN uses tagged 802.1Q frames whereas native VLAN uses 802.1P frames.
B.Voice VLAN uses untagged frames whereas native VLAN uses 802.1Q frames.
C.Voice VLAN uses tagged 802.1Q frames whereas native VLAN uses untagged frames.
D.Voice VLAN uses untagged frames only when no PCs are connected behind the phones whereas native VLAN always uses untagged frames.
Correct Answers: C

2: Which protocol is used to inform the IP phone of its voice VLAN ID?
A.Cisco keepalives
B.Cisco Discovery Protocol
C.Cisco Spanning Tree Protocol
D.Cisco VLAN Discovery Protocol
Correct Answers: B

3: Which value does an administrator assign to option 150 for DHCP to operate correctly in a Cisco Unified Communications Manager Express environment?
A.IP address of the DNS server
B.IP address of the TFTP server
C.MAC address of the TFTP server
D.MAC address of the DHCP server
E.MAC address of the Cisco Unified Communications Manager Express router
F.IP address of the PC on which the Cisco Unity Express module is installed
Correct Answers: B

4: Which two are considered endpoints in a Cisco Unified Communications solution? (Choose two.)
A.gateway agent
C.IP telephone
D.analog phone
E.H.323 gatekeeper
F.Cisco Unified Communications Manager
Correct Answers: A C

5: Which type of delay can lead to jitter in a voice network?
A.propagation delay
B.serialization delay
C.CODEC delay
D.queuing delay
Correct Answers: D

6: IP phone A places a call to IP phone B. How many RTP streams are required for the call to be successfully completed?
Correct Answers: B

7: What are two benefits of using an ITSP for long distance telephony services? (Choose two.)
A.Connection to an ITSP is very granular and can provision from 1 to hundreds of simultaneous calls.
B.Connection to an ITSP is only available in full T1/E1/PRI circuit quantities.
C.The circuits are dedicated only to voice.
D.Connection to an ITSP is easier to configure because transcoders can seamlessly convert H.323 or SIP to SCCP.
E.Connection to an ITSP allows you to use the bandwidth that is guaranteed to the voice traffic for data when voice is not using the bandwidth.
Correct Answers: A E

8: How does LLQ help ensure that voice quality is maintained in a converged network?
A.LLQ allocates minimum bandwidth guaranteed to voice traffic.
B.LLQ allocates a priority queue to voice traffic at a guaranteed rate.
C.LLQ allocates a priority queue and a minimum guaranteed bandwidth queue for voice.
D.LLQ ensures that all traffic is treated fairly and hence voice traffic is not severely impacted.
Correct Answers: B

9: What protocol does a Cisco IP phone use to indicate to the switch how much power is needed?
Correct Answers: B

10: Which best describes the auto-attendant in a Cisco Unified Communications environment?
A.A set of call processing instructions that automatically tell the system what to do when it reaches a particular system ID
B.A system that automatically allows inside or outside callers to leave voice-mail messages 24 hours, 7 days a week, even when no operator is on duty
C.A function that greets and guides callers through a telephony system in a friendly and timely manner, allowing them to reach an endpoint, leave messages, or speak to an operator
D.A function that allows the option of listening to, composing, replying to, forwarding, or deleting calls or voice-mail messages through a website without the need of a live telephone operator
Correct Answers: C

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