Cisco 400-051 Exam

Refer to the exhibit. Which description of a User Agent Server that sends this message is true?

  • A. The UAS sends this message in response to an earlier PRACK received
  • B. The UAS sends this message in response to an earlier INVITE that contains PRACK
  • C. The UAS sends this message in response to an earlier ACK received
  • D. It is not possible for the UAS to send this message
  • E. The UAS sends this message in response to an earlier INVITE received
Answer: Option A.
Explanation: 
No answer description available for this question

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