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Cisco 642-457 Exam -

Free 642-457 Sample Questions:

Q: 1
When an incoming PSTN call arrives at an MGCP gateway, how does the calling number get normalized to a global E.164 number with the + prefix in Cisco Unified Communications Manager?
A. Normalization is done using translation patterns.
B. Normalization is done using route patterns.
C. Normalization is done using the gateway incoming called party prefixes based on number type.
D. Normalization is done using the gateway incoming calling party prefixes based on number type.
E. Normalization is achieved by local route group that is assigned to the MGCP gateway.
Answer: D

Q: 2
Where do you specify the device mobility group and physical location after they have been configured?
A. phones
C. device mobility CSS
D. device pool
E. MRGL O F locale
Answer: D

Q: 3
Which two locations are the best locations that an end user can use to determine if an IP phone is working in SRST mode? (Choose two)
A. Cisco Unified Communications Manager Administration
B. IP phone display
C. Cisco Unified SRST Router
D. Cisco Unified MGCP Fallback Router
E. physical IP phone settings
Answer: A, B

Q: 4
Which statement best describes globalized call routing in Cisco Unified Communications Manager?
A. All incoming calling numbers on the phones are displayed as an E 164 with the + prefix.
B. Call routing is based on numbers represented as an E.164 with the + prefix format.
C. All called numbers sent out to the PSTN are in E-164 with the + prefix format.
D. The CSS of all phones contain partitions assigned to route patterns that are in global format.
E. All phone directory numbers are configured as an E.164 with the + prefix.
Answer: B

Q: 5
Which statement about H.323 Gatekeeper Call Admission Control is true?
A. Gatekeeper Call Admission Control applies to centralized Cisco Unified Communications deployments that use locations based Call Admission Control.
B. Gatekeeper Call Admission Control applies to distributed Cisco Unified Communications deployments.
C. Gatekeeper Call Admission Control applies only to distributed Cisco Unified Communications Express deployments.
D. Gatekeeper Call Admission Control setting is configured in Cisco Unified Communications.
Answer: B

Q: 6
While configuring Call Survivability in Cisco Unified Communications Manager, what step is mandatory to reach remote sites while in SRST mode?
A. Enable Cisco Remote SiteReachability.
B. Configure CFUR.
C. Enable the SRST checkbox in the MGCP gateway.
D. Configure the H 323 gateway for SRST in Cisco Unified Communications Manager.
E. Enable the Failover Service parameter.
Answer: E

Q: 7
Which Cisco IOS command is used to verify that the Cisco Unified Communications Manager Express has registered with the SAF forwarder?
A. showeigrp service-family ipv4 clients
B. showeigrp address-family ipv4 clients
C. show voicesaf dndball
D. showsaf registration
E. showip saf registration
Answer: A

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