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300-085 · Question #299

Which two properties of User CDRs that are part of CDR-based reports for planning and reviewing telepresence network usage are valid? (Choose two )

The correct answer is C. Cisco TMS retains zero duration calls when resolving feedback from the Cisco VCS. E. Cisco VCSs under heavy load can fail to send feedback events to cisco TMS, but they retry. Cisco TMS CDR behavior includes retaining zero-duration call records from VCS feedback and relying on VCS retry logic when feedback delivery fails under heavy load.

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Question

Which two properties of User CDRs that are part of CDR-based reports for planning and reviewing telepresence network usage are valid? (Choose two )

Options

  • AUser CDRs are generated only on the Cisco VCS that the endpoint making the outbound call
  • BUser CDRs are generated only for incoming calls
  • CCisco TMS retains zero duration calls when resolving feedback from the Cisco VCS.
  • DUser CDRs in Cisco TMS should be considered best effort.
  • ECisco VCSs under heavy load can fail to send feedback events to cisco TMS, but they retry

How the community answered

(21 responses)
  • A
    14% (3)
  • B
    5% (1)
  • C
    71% (15)
  • D
    10% (2)

Why each option

Cisco TMS CDR behavior includes retaining zero-duration call records from VCS feedback and relying on VCS retry logic when feedback delivery fails under heavy load.

AUser CDRs are generated only on the Cisco VCS that the endpoint making the outbound call

User CDRs are generated on all Cisco VCS nodes involved in a call path, not solely on the VCS that handled the outbound leg of the call.

BUser CDRs are generated only for incoming calls

User CDRs are generated for both outgoing and incoming calls, not restricted to incoming calls only.

CCisco TMS retains zero duration calls when resolving feedback from the Cisco VCS.Correct

Cisco TMS retains zero-duration call records when processing CDR feedback from Cisco VCS, ensuring that failed or instantly terminated calls still appear in planning and usage reports rather than being silently discarded.

DUser CDRs in Cisco TMS should be considered best effort.

Because VCS actively retries failed feedback events as described in E, CDRs are not purely best effort; the retry mechanism provides a higher reliability guarantee than this statement implies.

ECisco VCSs under heavy load can fail to send feedback events to cisco TMS, but they retryCorrect

When a Cisco VCS is under heavy load and cannot immediately deliver feedback events to TMS, it will retry sending those events, which preserves CDR completeness over time and distinguishes VCS feedback from a purely best-effort delivery model.

Concept tested: Cisco TMS CDR generation and VCS feedback retry behavior

Source: https://www.cisco.com/c/en/us/support/conferencing/telepresence-management-suite-tms/products-maintenance-guides-list.html

Topics

#CDR reports#VCS feedback#TelePresence usage#TMS CDR

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