2013 Latest CCNA Voice 640-461 Real Exam Question 101-105

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QUESTION 101
Which three characteristics are associated with voice? (Choose three.)
A. greedy
B. TCP retransmits
C. UDP priority
D. delay sensitive
E. drop insensitive
F. benign
G. benign or greedy
Correct Answer: CDF Section: QoS Explanation
Explanation/Reference:
Voice traffic uses UDP packets for network transfer and normally they are sensitive to delay (Latency) because its real time traffic.Voice traffic can be benign as well.

QUESTION 102
Which type of packet-oriented network has the characteristic of being drop-tolerant and delay insensitive?
A. data
B. voice
C. video
D. converged
E. All packet-oriented networks share these characteristics.
Correct Answer: A Section: QoS Explanation
Explanation/Reference:
Three Characteristics of Data
TCP retransmits drop insensitive benign or greedy

QUESTION 103
What will happen if an end user is deleted from the Cisco Unified Communications Manager system?
A. The user will be removed, but the associated device and directory number will remain in the system.
B. The user and the associated device will be removed, but the directory number will become orphaned.
C. The user, the associated device, and the directory number will be removed.
D. The user will be removed, and the associated device and directory number will be automatically assigned to the administrator.
E. The user will be removed, and the associated device and directory number will be allocated to the next user added to the system.
Correct Answer: A Section: CUCM Explanation

QUESTION 104
How does the Cisco Unified Communications Manager Express match an outbound VoIP dial peer?
A. Outbound dial-peer matching uses the entire string of digits en bloc to match the dial peer with the longest match.
B. Outbound dial-peer matching is completed on a digit-by-digit basis.
C. It matches outbound dial peers by placing all the dial peers into a hunt group and then uses the entire dialed number en bloc to match the first dial peer.
D. Cisco Unified Communications Manager Express creates a hunt group that contains all the configured dial peers and then applies the dial digits in a digit-by-digit manner to match a dial peer.
Correct Answer: A Section: CUCME Explanation
Explanation/Reference: The method a router uses to select an outbound dial peer depends on whether DID is configured in the inbound POTS dial peer. If DID is not configured in the inbound POTS dial peer, the router collects the incoming dialed string digit by digit. When one dial peer is matched, the router immediately places the call using the configured attributes in the matching dial peer. If DID is configured in the inbound POTS dial peer, the router uses the full incoming dial string to match the destination pattern in the outbound dial peer. With DID, the setup message contains all the digits necessary to route the call; no additional digit collection is required. If more than one dial peer matches the dial string, all of the matching dial peers are used to form a rotary group. The router attempts to place the outbound call leg using all of the dial peers in the rotary group until one is successful.
Link: http://docwiki.cisco.com/wiki/Cisco_IOS_Voice_Troubleshooting_and_Monitoring_–_Call_Flow_Overview#Outbound_Dial_Peer_Matching

QUESTION 105
In which situation are user PINs maintained by the local Cisco Unified Communications servers?
A. Only when the system is using LDAP synchronization.
B. Only when the system is using LDAP authentication.
C. Only when the system is using Global Directory.
D. PINs are always maintained by the local Cisco Unified Communications Manager servers
E. PINs are never maintained by the local Cisco Unified Communications Manager servers.
Correct Answer: D Section: CUCM Explanation
Explanation/Reference:
Cisco Unified Communications Manager assigns the system Default Credential Policy to end user passwords, end user PINS, and application user passwords

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