Cisco 400-051 Exam

Refer to the exhibit. Your customer sent you this debug output, captured on a Cisco IOS router (router A), to troubleshoot a problem where all H.323 calls that originate from another Cisco IOS router (router B) are being dropped almost immediately after arriving at router A. What is the reason for these disconnected calls?

  • A. Calls were unsuccessful because of internal, memory-related problems on router A.
  • B. Calls were rejected because the called number was denied on a configured class of restriction list on router A.
  • C. Calls were rejected because the VoIP dial peer 1002 was not operational.
  • D. Calls were unsuccessful because the router B IP address was not found in the trusted source IP address list on router A.
  • E. Calls were rejected by router A because it received an admission reject from its gatekeeper because of toll fraud suspicion.
Answer: Option D.
Explanation: 

Trusted source IP address list on router is a list which secures the connectivity of router if it is enabled then we need to give the trusted entry for any route to reach.

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