Free Cisco 642-427 Exam Dumps Questions & Answers

Refer to the exhibit.

When Alice, at extension 2001, places a call to Bob, at extension 3001, Alice hears her own voice reflected.
Which type of echo is this classified as?

• A.  front-end circuit echo
• B.  tail circuit echo
• C.  talker echo
• D.  listener echo

Which command should you use to resolve a jerky speed issue?

• A.  comfort-echo
• B.  comfort-noise
• C.  playout-delay
• D.  echo-cancel enable
• E.  echo-cancel coverage
• F.  show voice port

HOTSPOT

Correct Answer:

Which of these reasons can cause intrasite calls within a Cisco Unified Communications Manager cluster to fail?

• A.  The MGCP gateway is not registered
• B.  The calling phone does not have the correct CSS configured
• C.  The trunk CSS does not include the partition for the called directory number.
• D.  The route partition that is configured in the CCD requesting service is not listed in the calling phone CSS
• E.  The calling phone does not have the correct partition configured.

Up to 10 phone calls over a 1 Mb/s WAN link have had consistently acceptable audio quality, even with considerable data traffic. Recently, when over 10 calls are made, audio quality has declined.
Which solution would you implement to maintain acceptable audio quality for the first 10 calls only while allowing for changes in WAN data utilization?

• A.  RSVP CAC operating on the routers independently of Cisco Unified Communications Manager
• B.  CAC implemented directly on the Cisco IP Phones
• C.  Cisco Unified Communications Manager CAC
• D.  RSVP CAC on the routers integrated with Cisco Unified Communications Manager