Exam MS-740 topic 1 question 12 discussion

Actual exam question from Microsoft's MS-740

Question #: 12
Topic #: 1

You are managing a Microsoft Teams environment for a company. You are setting up direct routing on a partner-hosted session border controller (SBC).
The SIP proxy does not receive SIP options from the SBC.
You need to resolve the issue.
What are two possible ways to achieve the goal? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.

A. Ensure that the Secure Real-Time Transport Protocol (SRTP) is enabled.
B. Replace the partner-hosted SBC with a self-deployed SBC.
C. Ensure that the SBC certificate is from a trusted Certificate Authority (CA).
D. Modify the FQDN in the SIP profile to match the SBC certificate.

Show Suggested Answer

Suggested Answer: CD 🗳️
Reference:
https://docs.microsoft.com/en-us/microsoftteams/troubleshoot/phone-system/direct-routing/sip-options-tls-certificate-issues

by Shredst0r at Nov. 15, 2021, 12:11 p.m.

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2MeterSmurf

2 years, 12 months ago

Selected Answer: CD

Correct SRTP packages wont be sent before SIP options has been received. Microsoft has no opinion whether you self-deploy or use a partner-hosted (carriers) and eventhough the partner may have made a configuration error it would seem less likely compared to doing it yourself since they configure Teams Direct Routing on a regular basis. The link provided clearly states that option C and D is the correct choice.

upvoted 2 times

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Domza

3 years, 7 months ago

Correct~

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Shredst0r

3 years, 9 months ago

Answer is correct. Those are 2 possible reasons.

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