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Exam H12-211 topic 1 question 42 discussion

Actual exam question from Huawei's H12-211
Question #: 42
Topic #: 1
[All H12-211 Questions]

UDP is connectionless oriented, which of the following must be used in order to ensure reliability?

  • A. Internet Protocol
  • B. Application Layer Protocol
  • C. Network Layer Protocol
  • D. Transmission Control Protocol
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️

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skwaru
2 years, 4 months ago
B UDP have no control when sends packets so, when you create application and use UDP protocol u must create your own control system on the application layer
upvoted 1 times
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JAP66
2 years, 6 months ago
B is correct answer User Datagram Protocol (UDP): provides connectionless communication and does not guarantee the reliability of packet transmission. The reliability can be ensured by the application layer.
upvoted 1 times
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Nicodemos507
3 years, 5 months ago
to ensure reliability? I think that is D (TCP ensure reliability regarding UDP)
upvoted 1 times
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klauber
4 years, 7 months ago
B: implementation a channel using RDT(reliable data transfer) Transport Layer >> UDP=unreliable
upvoted 4 times
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Benwi
4 years, 9 months ago
I think the correct answer is: D not B
upvoted 4 times
molochtrooper
3 years, 7 months ago
It's B, an application is mostly operating with UDP and a dynamic port, the application itself has to ensure the reliability of the connection or at least the send data. If data is lost, the application layer has to send resend request/channel reopening.
upvoted 5 times
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