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Exam 350-801 topic 1 question 288 discussion

Actual exam question from Cisco's 350-801
Question #: 288
Topic #: 1
[All 350-801 Questions]

During the Cisco IP Phone registration process, the TFTP download fails. What are two reasons for this issue? (Choose two.)

  • A. Option 100 string was not specified, or an incorrect Option 100 string was specified
  • B. The Cisco IP Phone does not know the IP address of any of the Cisco UCM Subscriber nodes
  • C. The Cisco IP Phone does not know the IP address of the TFTP server
  • D. Option 150 string was not specified, or an incorrect Option 150 string was specified
  • E. The DNS server was not specified, which is needed to resolve the DHCP server IP address
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Suggested Answer: CD 🗳️
by santiagof at Nov. 4, 2022, 7:02 p.m.

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TheBabu
6 months, 3 weeks ago
Selected Answer: CD
Going for C and D: A: Wrong, option 100 doesn't have anything to do with TFTP servers. B: Also seems wrong, the phone needs to know the IP of the TFTP server, not the IP of the subs. C: Makes sense, this would of course trigger the failure. D: Also makes sense, option 150 is used to obtain TFTP server addresses. E: Could be right, but you don't necessarily need a DNS server if option 66 or 150 are directly providing the IP of the TFTP server.
upvoted 2 times
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RdTx
1 year, 10 months ago
Selected Answer: CD
C&D are correct
upvoted 1 times
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santiagof
2 years ago
Selected Answer: CD
C and D are correct. E is wrong, you dont need a DNS to resolved a ip address, its already a ip address
upvoted 4 times
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