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Implementing Cisco Collaboration Core Technologies (CLCOR) Questions 86–90 (page: 19)

Updated On: 10-Feb-2026



Refer to the exhibit. A collaboration engineer is troubleshooting an issue with database replication on a Cisco UCM subscriber node. The engineer runs the utils NTP status command to check the NTP status.
What does the engineer determine from the output?

  1. The Cisco UCM subscriber node is synced at stratum 4, which can cause temporary issues.
  2. The Cisco UCM subscriber node polling interval is too high and must be reduced to avoid issues.
  3. The Cisco UCM subscriber node is synced correctly with NTP on the Cisco UCM publisher node.
  4. The reachability value of the Cisco UCM subscriber node indicates intermittent connectivity issues.

Answer(s): C

Explanation:

The utils ntp status command output shows the NTP synchronization status for the Cisco UCM subscriber node. Let's break down the key indicators:
"synchronised to NTP server (80.81.128.1) at stratum 4"

- This means the node is successfully synchronized with an NTP server that is at stratum 4, which is a valid sync level.
Reachability value: 377

- This is an octal representation of successful reachability over the last 8 polling intervals (fully reachable).
Delay, Offset, and Jitter values

- The delay (0.865 ms), offset (0.607 ms), and jitter (0.666 ms) are all within an acceptable range, meaning time synchronization is stable.
Since the node is correctly synchronized, we can conclude that NTP is not the cause of the database replication issue and is functioning properly.



Which two SNMP services are available in Cisco UCM? (Choose two.)

  1. SYS-MIB
  2. HOST-RESOURCES MIB
  3. APPL-MIB
  4. CISCO-CCM-MIB
  5. RESOURCES-MIB

Answer(s): B,D

Explanation:

Cisco Unified Communications Manager supports the HOST-RESOURCES MIB to provide information about system resources such as CPU, memory, and storage usage, and the CISCO-CCM-MIB to expose Cisco Unified Communications Manager­specific operational and performance data for monitoring and management via SNMP.



An administrator configures Cisco UCM to use UDP for SIP signaling and finds that an endpoint cannot make calls.
Which action resolves this issue?

  1. Change the common phone profile.
  2. Change the SIP dial rules.
  3. Change the SIP profile.
  4. Change the phone security profile.

Answer(s): D


Reference:

https://community.cisco.com/t5/unified-communications/cucm-sip-trunking-using-udp-for-signalling/ td-p/4174259



A collaboration engineer troubleshoots issues with a Cisco IP Phone 7800 Series. The IPv4 address of the phone is reachable via ICMP and HTTP, and the phone is registered to Cisco UCM. However, the engineer cannot reach the CLI of the phone.
Which two actions in Cisco UCM resolve the issue? (Choose two.)

  1. Enable Settings Access under Product Specific Configuration Layout in Cisco UCM.
  2. Enable FIPS Mode under Product Specific Configuration Layout in Cisco UCM.
  3. Enable SSH Access under Product Specific Configuration Layout in Cisco UCM.
  4. Set a username and password under Secure Shell Information in Cisco UCM.
  5. Disable Web Access under Product Specific Configuration Layout in Cisco UCM.

Answer(s): C,D



A remote office has a less-than-optimal WAN connection and experiences packet loss, delay, and jitter.
Which VoIP codec should be used in this situation?

  1. G.711alaw
  2. iLBC
  3. G.722.1
  4. G.729A

Answer(s): B


Reference:

https://community.cisco.com/t5/collaboration-voice-and-video/summary-of-cucm-supported-codecs/ ta-p/3162905



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