Discuss Cisco 350-801 Exam Topic 13 Question 6

Refer to the exhibit.

An administrator is attempting to register a SIP phone to a Cisco UCM but the registration is failing. The IP address of the SIP Phone is 10.117.34 222 and the IP 1 address of the Cisco UCM is 10.0.101.10. Pings from the SIP phone to the Cisco UCM are successful. What is the cause of this issue and how should it be resolved?

AThe certificates on the SIP phone are not trusted by the Cisco UCM. The SIP phone must generate new certificates.

BDNS lookup for the Cisco UCM FQDN is failing. The SIP phone must be reconfigured with the proper DNS server.

CAn NTP mismatch is preventing connection of the TCP session between the SIP phone and the Cisco UCM. The SIP phone and Cisco UCM must be set with identical NTP sources.

DAn network device is blocking TCP port 5060 from the SIP phone to the Cisco UCM. This device must be reconfigured to allow traffic from the IP phone.

Suggested Answer: D

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9 comments · newest first

Corrina 12 months ago

Wait, are we sure it's not a firewall blocking something?

Thaddeus 12 months ago

NTP mismatch could be the culprit, good call!

Lashonda 1 year ago

I doubt it's DNS, pings are working fine.

Lynna 1 year ago

Definitely a certificate problem, I've seen that before.

Annabelle 1 year ago

Sounds like a port issue, check TCP 5060.

Bettina 1 year ago

This question seems straightforward, but I want to make sure I understand the key details. Freddie's business is expanding, and he's worried about the wheat harvest and a lost contract for his client UK Systems Limited. I think the inputs to Harmon's model would be the suppliers and the external factors affecting the business.

Glory 1 year ago

Okay, let me see. I know decision coverage is about ensuring all possible outcomes of a decision have been tested. I'll eliminate the options that don't fit that description.

Glory 1 year ago

I'm a bit confused by the wording of this question. Can someone help me understand the difference between these runtime roles?

Lashaun 1 year ago

Hmm, this is a tricky one. I'm not sure if I fully understand the question. I'll need to read through the case study carefully to get a better sense of the context.

Cisco 350-801 Exam - Topic 13 Question 6 Discussion