642-457 Sample Question: 21

Question: 21

While operating in SRST, what is needed to route calls outside of the remote site location to the PSTN?

A. SIP trunk
B. CallManager route patterns
C. translation patterns
D. POTS dial peers
E. VOIP dial peers

Answer: D

Explanation: 

Incorrect answer: A,B,C,E
In time of srst configuration on router, please configure a dial-peer so that call flow in SRST mode.

642-457 Sample Question: 20

Question: 20

Which two options for a Device Mobility-enabled IP phone are true? (Choose two.)

A. The phone configuration is not modified.
B. The roaming-sensitive parameters of the current (that is, the roaming) device pool are applied.
C. The user-specific settings determine which location-specific settings are downloaded from the Cisco Unified Communications Manager device pool.
D. If the DMGs are the same, the Device Mobility-related settings are also applied.

Answer: B,D

642-457 Sample Question: 19

Question: 19

In what Cisco solution is Simple Network-Enabled Auto Provision technology used?

A. Cisco Unified Gateway Duplication
B. Cisco Unified CallManager Redundancy
C. Cisco Unified SRST
D. Cisco Unified Call Survivability

Answer: C

642-457 Sample Question: 18

Question: 18

While operating in SRST, what is needed to route calls outside of the remote site location to the PSTN?

A. SIP trunk
B. CallManager route patterns
C. translation patterns
D. POTS dial peers
E. VOIP dial peers

Answer: D

Explanation:

Incorrect answer: A,B,C,E in time of srst configuration on router, please configure a dial-peer so that call flow in SRST mode.