Huawei Exam H13-922 Topic 1 Question 72 Discussion

Actual exam question for Huawei's H13-922 exam

Question #: 72
Topic #: 1

(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 Emerson at Jul 12, 2024, 10:46 AM

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Tesha

4 months ago

Haha, who needs distribution columns when you can just store all your data on a floppy disk? That's the real performance hack!

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Kelvin

3 months ago

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

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Jaime

3 months ago

A) Normally, the primary key of the table is selected as the distribution column.

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Aliza

4 months ago

C looks good to me! Targeting a specific name in the filter means the name column should be the distribution column. Easy peasy!

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Jarod

3 months ago

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

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Farrah

3 months ago

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

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Clorinda

4 months ago

A) Normally, the primary key of the table is selected as the distribution column.

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Rosalind

4 months ago

I agree with Nettie, A makes more sense as the distribution column.

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Leota

4 months ago

I think C could also be a valid option, depending on the query.

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Elenore

5 months ago

Hmm, I'm not sure. This question is making my head spin. Maybe I should have studied more probability distributions instead of binge-watching that new Netflix show.

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Carlota

5 months ago

D is the way to go! Join conditions are the key to efficient data distribution for complex queries.

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Laquita

5 months ago

I think B is the correct answer. Columns with fewer values can be better distributed across the nodes, improving query performance.

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Dusti

3 months ago

I agree, B is the correct answer for better query performance.

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Hassie

4 months ago

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

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Pedro

4 months ago

A) Normally, the primary key of the table is selected as the distribution column.

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Nettie

5 months ago

I disagree, I believe A is the correct choice.

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Corrie

5 months ago

I think the correct answer is B.

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