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最新的 CCNP Voice 642-427 免費考試真題:

1. Refer to the exhibit. When an outgoing PSTN call is made through the MGCP gateway shown in the exhibit, which two statements about the called numbers and calling numbers is true? (Choose two.)

A) The calling number will be subject to digit manipulation based on the device pool calling party
transformation CSS.
B) The calling number will have no digit manipulation.
C) The called number will be subject to digit manipulation based on the transformation pattern that
is assigned to the BR1_Intl.CSS.
D) The called-party number will be subject to digit manipulation based on the device pool called-
party transformation CSS.
The calling number will inherit digit manipulations from the called-party transformation CSS if a
pattern match occurs.
E) The called number will have no digit manipulation.

2. Which device provides information to troubleshoot offnet calls?

A) Cisco Unified Contact Center Express server
B) voice gateway
C) performance monitor
D) Cisco Unity Connections server

3. 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) AF12
B) CS4
C) BE
D) EF
E) AF32

4. Users are complaining that they hear echo when they place calls to the PSTN through the HQ_PSTN gateway. The voice port configuration for the gateway is as follows:
voice-port 1/0:23
input gain -1
output attenuation 1
echo-cancel erl worst-case 3
Why are users hearing echo?
Select the best response.

A) The actual ERL is 2dB; however, the echo canceller still does not acknowledge the input signal as echo because it is lower than the echo-cancel erl worst-case 3 command.
B) InSignalLevel needs to be adjusted so that it is within the range from -20 dB to -25 dB
C) The echo canceller should be configured so that SIN and SOUT have a 2 dB difference in order to function properly.
D) The echo canceller is functioning properly and some echo is to be expected on every call.

5. Refer to Exhibit.

Which Cisco Unified Communications Manager Real-Time Monitoring Tool component can be
used to view DHCP requests and responses from a Cisco Unified Communications Manager DHCP server?

A) Processor
B) Performance Log Viewer
C) SysLog Viewer
D) VLT
E) System Summary
F) Job Status

問題與答案：