Exam 350-801 topic 1 question 76 discussion

Actual exam question from Cisco's 350-801

Question #: 76
Topic #: 1

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

A. Change the common phone profile.
B. Change the SIP dial rules.
C. Change the SIP profile.
D. Change the phone security profile.

Show Suggested Answer

Suggested Answer: D 🗳️

by Slushed at May 1, 2022, 11:52 p.m.

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ciscogeek

Highly Voted 2 years, 12 months ago

Selected Answer: D

Answer seems right, as the particular phone's security profile might be configured for TCP only, hence , UDP can be allowed in phone security profile. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/security/11_5_1/secugd/CUCM_BK_SEE2CFE1_00_cucm-security-guide-1151/CUCM_BK_SEE2CFE1_00_cucm-security-guide-1151_chapter_0111.html

upvoted 6 times

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b3532e4

Most Recent 7 months, 2 weeks ago

D. Change the phone security profile

upvoted 1 times

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Slushed

3 years ago

None of these are correct as I am guessing whoever typed it up made a mistake. The correct answer, which is not present, should be SIP Trunk Security Profile. Within that configuration you can set the Incoming and Outgoing transport types (TCP, UDP, TLS where applicable).

upvoted 2 times

Omitted

2 years, 11 months ago

You can set the transport type on the SIP trunk security profile (incoming and outgoing) but also you can set the transport type on the any phone security profile. So the answer must be D here.

upvoted 3 times

skneff

1 year, 3 months ago

Exactly. It is not known from the question that the call needs to traverse a SIP trunk anyway. It could be a local call. Whereas if it was a Phone security profile issue it would be the problem no matter what.