Refer to the exhibit. A collaboration engineer needs to replace the original, single NTP server that was configured during the initial install of a Cisco UCM server.
What is the first step to accomplish this task?

• A.Stop the NTP service on Cisco UCM.
• B.Enable NTP authentication for the new NTP server on Cisco UCM.
• C.Delete the original NTP server from Cisco UCM
• D.Restart the NTP service on Cisco UCM.

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What are two functions of Cisco Expressway in the Collaboration Edge? (Choose two)

• A.Expressway-E provides a VPN entry point for Cisco IP phones with a Cisco AnyConnect client using authentication based on certificates.
• B.Expressway-C provides encryption for Mobile and Remote Access but not for business-to- business communications.
• C.The Expressway-C and Expressway-E pair can interconnect H.323-to-SIP calls for voice.
• D.The Expressway-C and Expressway-E pair can enable connectivity from the corporate network to the PSTN via a T1/E1 trunk.
• E.Expressway-E provides a perimeter network that separates the enterprise network from the Internet.

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A Cisco UCM administrator wants to enable the Self-Provisioning feature for end users Which two prerequisites must be met first? (Choose two.)

• A.End users must belong to Standard CCM Admin Users group the Standard CCM End Users group and the Standard CCM Self-Provisioning group
• B.End users must be associated to a user profile or feature group template that includes a universal line template and universal device template
• C.End users must have a secondary extension
• D.End users must have a primary extension
• E.Cisco Extended Functions service must be running

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An engineer must configure an MGCP gateway and register it to Cisco Unified Communications Manager.
Which prerequisite must be met before applying the gateway commands to enable MGCP?

• A.The MGCP gateway and the Cisco Unified CM must be able to communicate aver ports 5060 and 5061.
• B.Cisco Unified CM and the MGCP gateway must utilize the SIP OPTIONS ping feature to monitor status.
• C.The MGCP gateway must have voice service VoIP configured.
• D.The MGCP gateway and the Cisco Unified CM must be able to communicate over ports 2427, 2428, and
  2727.

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A presence redundancy group is deployed, and an engineer with ID012345678 initiates a Manager fallback. Which statement about Cisco server Recovery Manager is true?

• A.restart the Cisco Presence Engine
• B.disconnects all users that had been failed over
• C.restarts critical services on the secondary node
• D.disconnects all users that had been failed over, and the users must log in again

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