Huawei Exam H13-711_V3.0 Topic 2 Question 58 Discussion

Actual exam question for Huawei's H13-711_V3.0 exam

Question #: 58
Topic #: 2

AboutHDFSdataFinishIntegrity guarantee, which of the following mechanisms isMistakeof?

ASectionPoint higher performance DataNodemore data will be stored

BThe log mechanism is used to operate the metadata, and the metadata is stored on the active and standby NanoNodes.

CThe snapshot mechanism implements the file systemas usualSee the snapshot mechanism to ensure that data can be recovered in time when misoperation occurs

DDataNode to NameNode periodic reportFailTask,NameNodeinitiateviceThis rebuild action to restore lostcopy

Show Suggested Answer

Suggested Answer: A

by Roselle at Sep 19, 2024, 05:25 AM

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Johnson

2 months ago

Haha, I love how they're trying to trick us with these options. 'DataNode to NameNode periodic reportFailTask'? Sounds like something straight out of a tech comedy script!

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Raul

1 months ago

User 3: Agreed, the other options seem a bit confusing.

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Fletcher

1 months ago

User 2: Yeah, that makes sense. It ensures data can be recovered in case of misoperation.

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Eric

1 months ago

User 1: I think the answer is C) The snapshot mechanism.

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Noah

2 months ago

I'm not sure, but I think D could also be a valid option as it involves restoring lost data copies.

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Evangelina

2 months ago

I agree with Susana, the snapshot mechanism is crucial for maintaining data integrity in HDFS.

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Amber

3 months ago

Ah, but what about the performance advantage of storing more data on the DataNodes in A? That could be a factor too.

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Dorothy

2 months ago

DataNode periodic reports to NameNode help restore lost data.

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Marleen

2 months ago

Yes, but the snapshot mechanism ensures data can be recovered in case of misoperation.

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Ngoc

2 months ago

Storing more data on DataNodes can lead to higher performance.

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Marla

3 months ago

I'm leaning towards D. The NameNode initiating a rebuild action to restore lost copies seems like a solid integrity guarantee.

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Susana

3 months ago

I think the correct mechanism is C, the snapshot mechanism ensures data recovery in case of misoperation.

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Alona

3 months ago

Hmm, I'm not sure about that. The log mechanism in B also seems like it could help with data integrity.

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Elli

2 months ago

Hmm, I'm not sure about that. The log mechanism in B also seems like it could help with data integrity.

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Susy

2 months ago

C) The snapshot mechanism implements the file systemas usualSee the snapshot mechanism to ensure that data can be recovered in time when misoperation occurs

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