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Huawei Exam H13-922 Topic 1 Question 65 Discussion

Actual exam question for Huawei's H13-922 exam

Question #: 65
Topic #: 1

[All H13-922 Questions]

(Multiple choices). The following description about the selection of the distribution column is correct?

ANormally, the primary key of the table is selected as the distribution column.

BColumns with fewer values are suitable as distribution columns, which can ensure that the data distribution is relatively concentrated.

CThe filter condition of the query is name = 'wang five', so the name column should be used as the distribution column.

DJoin conditions in queries are more suitable as distribution columns.

Show Suggested Answer

Suggested Answer: A, D

by Isreal at May 01, 2024, 01:56 PM

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Lezlie

6 months ago

Agree, B doesn't ensure balanced distribution. I'll probably choose A or D.

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Valentin

6 months ago

Option B seems incorrect. Fewer values could cause data skew.

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Allene

6 months ago

I'm not sure about C. Using 'name' as a distribution column might not be typical.

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Yolande

7 months ago

But what about option D? Join conditions seem relevant for performance.

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Vallie

7 months ago

Me too. I think option A is usually correct, primary keys are stable.

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Lezlie

7 months ago

I found this question about distribution columns tricky.

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