642-457 Sample Question: 8

Question: 8

Refer to the exhibit.

What should the destination IP address be configured as on the HQ and BR1 SIP trunks?

A. The HQ SIP trunk destination IP address should be 10.1.6.10. The BR1 SIP trunk destination IP address should be 10.1.5.10.

B. The destination IP address is not configurable. Each cluster will learn about the remote trunk IP address through SAF learned routes.

C. The destination IP address will be learned automatically and configured on the SIP trunks after the Cisco Unified Communications Managers discover themselves.

D. The HQ SIP trunk destination IP address should be the HQ SAF Forwarder IP address. The BR1 SIP trunk destination IP address should be the BR1 SAF Forwarder IP address.

Answer: B

Explanation:

The gatekeeper changes the IP address of this remote device dynamically to reflect the IP address of the remote device. Link: http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_6_1/ccmsys/a08trnk.html

642-457 Sample Question: 7

Question: 7

Assume that the Cisco IOS SAF Forwarder is configured correctly. Which minimum configurations on Cisco Unified Communications Manager are needed for the SAF registration to take place?

A. SAF Trunk, SAF Security Profile, SAF Forwarder, and CCD Advertising Service
B. SAF Trunk, SAF Security Profile, SAF Forwarder, and CCD Requesting Service
C. SAF Trunk, SAF Security Profile, SAF Forwarder, CCD Requesting Service, and CCD Advertising Service
D. SAF Trunk, SAF Security Profile, and SAF Forwarder
E. SAF Trunk, CCD Requesting Service, and CCD Advertising Service

Answer: B

What component acts as a user agent for both ends of a SIP call while Cisco Unified SIP SRST is providing failover during a WAN outage?

642-457 Sample Question: 6

Question: 6

What component acts as a user agent for both ends of a SIP call while Cisco Unified SIP SRST is providing failover during a WAN outage?

A. B2BUA
B. SIP server
C. SIP proxy
D. SIP SRST router
E. SIP registrar

Answer: A

642-457 Sample Question: 5

Question: 5

A Cisco Unified Communications Manager cluster is installed in headquarters only.

How can international calls be blocked while national calls are allowed for branch office Cisco IP Phones during a WAN failure?

A. Configure CSS and partitions in Cisco Unified Communications Manager and apply the
CSS and partitions to the SRST ISR.
B. Configure CSS and partitions in the SRST ISR.
C. Configure COR in the SRST ISR.
D. Configure voice translations in the SRST ISR.

Answer: C