2013 Latest CCNA Voice 640-461 Real Exam Question 81-85

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QUESTION 81
Which device would allow you to place calls from a Cisco Unified Communications Manager that is configured with SCCP phone to a Cisco Unified communication Manager Express that is configured with SIP phones?
A. gatekeeper
B. gateway
C. H.323 trunk
D. SIP trunk
E. Cisco Unified Border Element
Correct Answer: E Section: CUCME Explanation

QUESTION 82
Which four characteristics are associated with video? (Choose four)
A. greedy
B. TCP retransmits
C. UDP priority
D. delay sensitive
E. drop sensitive
F. benign
G. bursty
Correct Answer: CDEG Section: QoS Explanation
Explanation/Reference:
Video traffic uses UDP packets for network transfer and normally they are sensitive to delay (Latency), drop (Packet drops) and Jitter because its a real time traffic.Video traffic can be bursty as well.

QUESTION 83
Can an IP phone be configured so that calls to that IP phone can be rerouted if the IP phone become unregistered?
A. Yes. configuring call forward All provides this coverage
B. No. if a phone is unregistered, the re-order tone is played to the caller
C. Yes. configuring Call Forward Busy Internal provides this coverage
D. Yes. configuring Call Forward Unregistered provides this coverage
E. No. the call is dropped at the gateway
Correct Answer: D Section: IP Phone Explanation
Explanation/Reference:
Call Forward Unregistered
The Call Forward Unregistered (CFU) feature allows you to forward a call to a different number if the directory number (DN) is not associated with a phone or if the associated phone is not registered to Cisco Unified CME. The CFU feature is very useful for wireless phone users when the wireless phone is out of the access point or phone shuts down automatically because of an automatic shutdown feature. The service is not available and the call can be forwarded to the CFU destination. Any unregistered or floating DN can be forwarded using the CFU feature.
An unregistered DN indicates that none of its associated phones are registered to the Cisco Unified CME. A registered phone will become unregistered when the Cisco Unified CME sends an unregistration request or responses to a phone’s unregistration request. Cisco Unified CME sends an unregistration request under the following circumstances:
CWhen the keepalive timer expires.
CWhen a user issues a reset or restart command on the phone.
CWhen an extension mobility (EM) user logs into the phone. (All DNs configured under the logout-profile are unregistered except for the shared ones that are associated with other registered phones.)
CWhen an EM user logs out of the phone. (All DNs configured under the user-profile are unregistered except for the shared ones that are associated with other registered phones.)
There is always a gap between the time the phone loses its connection with Cisco Unified CME and the time when Cisco Unified CME claims the phone is unregistered. The length of the gap depends on the keepalive timer. Cisco Unified CME considers the phone as registered and tries to associate DNs until the keepalive timer expires. You can configure the expiration for the keepalive timer using the registrar server expires max min command under sip in voice service voip mode for SIP IP phones. For more information, see the, “Configuring Keepalive Timer Expiration in SIP Phones: Example” section.
Cisco Unified CME 8.6 supports the CFU feature on SIP IP phones using the call-forward b2bua unregistered command under voice register dn tag. The CFU feature supports overlap dialing and en-bloc dialing. A call to a floating DN is forwarded to its CFU destination, if configured. Calls to a DN out of service point or phones losing connection are not forwarded to a CFU number until the phone becomes
unregistered.
For more information on configuring call-forward unregistered, see the “Configuring Call Forward
Unregistered for SIP IP Phones: Example” section.

Note: In earlier versions of Cisco Unified CME, a busy tone was played for callers when the callers are
unable to reach the SCCP phone number. In Cisco Unified CME 8.6 and later versions, a fast busy tone is
played instead of a busy tone for callers who are unable to reach the phone.

Link:
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmetrans.html

QUESTION 84
Which statement about Cisco Unified Presence and LDAP is true?
A. Cisco Unified Presence must be integrated with LDAP.
B. LDAP integration is mandatory if Cisco Unified Personal Communicator is used as a client.
C. LDAP integration with Cisco Unified Presence is optional. However, user search functionality in Cisco Unified Personal Communicator will not be available.
D. LDAP integration with Cisco Unified Presence is optional. However, instant messaging functionality in Cisco Unified Personal Communicator will not be available.
Correct Answer: C Section: Unified Presence Explanation
Explanation/Reference:
LDAP Integrations
You can configure a corporate LDAP directory in this integration to satisfy a number of different requirements:
.
User provisioning: You can provision users automatically from the LDAP directory into the Cisco Unified Communications Manager database.
Cisco Unified Communications Manager synchronizes with the LDAP directory content so you avoid having to add, remove, or modify user information manually each time a change occurs in the LDAP directory.
.
User authentication: You can authenticate users using the LDAP directory credentials.
Cisco Unified Presence synchronizes all the user information from Cisco Unified Communications Manager to provide authentication for users of the Cisco Unified Personal Communicator client and Cisco Unified Presence user interface.
.
User lookup: You can enable LDAP directory lookups to allow Cisco Unified Personal Communicator client users, or third-party XMPP clients, to search for and add contacts from the LDAP directory.
As the scope of the LDAP integration is dependent on customer requirements and it can vary between companies, there are a number of potential LDAP integration scenarios:
1.
You integrate Cisco Unified Communications Manager and Cisco Unified Personal Communicator with an LDAP directory. We strongly recommend this configuration.
2.
You integrate Cisco Unified Communications Manager with an LDAP directory, but you do not integrate Cisco Unified Personal Communicator. We do not recommend this configuration because it will impact Cisco Unified Personal Communicator functionality and you will experience performance issues.
3.
You integrate Cisco Unified Personal Communicator with an LDAP directory, but you do not integrate Cisco Unified Communications Manager. We do not recommend this configuration because you will have to manually configure all your users on Cisco Unified Communications Manager at initial installation, and each time a change is made on the LDAP directory.
Note When Cisco Unified Communications Manager is not integrated with LDAP, you must verify that the username is exactly the same in Active Directory and Cisco Unified Communications Manager before deploying Cisco Unified Presence. If the letter case does not match, the presence status will not work properly in Cisco Unified Personal Communicator Release 7.x. Correct the username in Cisco Unified Communications Manager to match Active Directory.
Link: http://www.cisco.com/en/US/docs/voice_ip_comm/cups/8_0/english/install_upgrade/deployment/guide/ dgldap.html

QUESTION 85
Which three rules are valid transfer rules in Cisco Unity Connection? (Choose Three)
A. standard
B. alternate
C. closed
D. holiday
E. nonstandard
Correct Answer: ABC Section: Unity Connection Explanation
Explanation/Reference: Standard Transfer Rule
This transfer rule applies during the work hours that your Cisco Unity administrator specified for your organization, or in other situations when no other transfer rule is enabled.By design, the standard transfer rule cannot be disabled.
Alternate Transfer Rule
Enable this transfer rule to apply during a specific time period when you want to override the other transfer rules. For example, you may want to route all your calls directly to voice mail while you are out of the office or you may want to transfer your calls to a different extension if you are temporarily working from another location.As long as it is enabled, the alternate transfer rule overrides all other transfer rules.
Closed Transfer Rule
Enable this transfer rule if you want Cisco Unity to perform different transfer actions during the nonwork hours that your Cisco Unity administrator specified for your organization. (For example,you may want to route all your calls directly to voice mail during nonwork hours.)As long as it is enabled, the closed transfer rule overrides the standard transfer rule during nonbusiness hours.

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