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Cisco 350-801 Exam - Topic 13 Question 6 Discussion

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?
D) An 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.
A) The certificates on the SIP phone are not trusted by the Cisco UCM. The SIP phone must generate new certificates.
B) DNS lookup for the Cisco UCM FQDN is failing. The SIP phone must be reconfigured with the proper DNS server.
C) An 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.

Cisco 350-801 Exam - Topic 13 Question 6 Discussion

Actual exam question for Cisco's 350-801 exam
Question #: 6
Topic #: 13
[All 350-801 Questions]

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?

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Suggested Answer: D

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Corrina
10 months ago
Wait, are we sure it's not a firewall blocking something?
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Thaddeus
10 months ago
NTP mismatch could be the culprit, good call!
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Lashonda
11 months ago
I doubt it's DNS, pings are working fine.
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Lynna
11 months ago
Definitely a certificate problem, I've seen that before.
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Annabelle
11 months ago
Sounds like a port issue, check TCP 5060.
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Bettina
11 months 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.
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Glory
11 months 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.
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Glory
11 months ago
I'm a bit confused by the wording of this question. Can someone help me understand the difference between these runtime roles?
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Lashaun
11 months 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.
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