642-427 試験問題を無料オンラインアクセス

After a successful login using Cisco Extension Mobility, an IP phone performs a restart followed by a reset.
What can cause this issue?

• A.The security profile that is specified in the user device profile does not match the security profile for the phone where the user logged in.
• B.The phone model to which the user logged in is a different model than the model that is configured in the user device profile.
• C.The user device profile and the phone that is used for the Cisco Extension Mobility log in do not use the same phone protocol.
• D.The locale that is configured on the phone is different than the locale that is configured in the user device profile.

Refer to the exhibit. HQ_MRGL is assigned to the HQ IP phones. BR_MRGL is assigned to the BR IP phones. The remote site BR IP phones only support G.711 codec. When a call is placed from an HQ phone to a BR phone, the call fails. Which statement indicates how this issue is resolved?

• A.Configure the transcoder at the HQ site and assign it to HQ_MRG
• B.Configure the transcoder at the BR site and assign it to BR_MRG
• C.A transcoder is not needed. The HQ phones will automatically change over to G.711 codec.
• D.The transcoder should be assigned to its own MRG, which should then be assigned to the default device pool at HQ.

Refer to the exhibit.

Local 10-digit dialing in the North American Numbering Plan to area code 456 is failing.
Which two changes are needed to enable 10-digit dialing? (Choose two.)

• A.Change dial peer 210 to destination-pattern 9456.......
• B.Remove the command prefix 456 from dial peer 210.
• C.Change dial peer 210 to destination-pattern 456.......
• D.Change dial peer 210 to port 0/0/0:23.

The following is a partial configuration of an access layer switch:
mls qos map cos-dscp 0 8 12 16 28 32 40 48
mls qos
!
Voice bearer traffic will be set to use which per-hop behavior?

• A.AF32
• B.AF12
• C.CS4
• D.BE
• E.EF

Which four of the following options are Cisco-supported IP telephony deployment models?

• A.Multisite with distributed call processing
• B.Transcoding
• C.Single site
• D.Clustering over the IP WAN
• E.Multisite with centralized call processing