Alibaba ACA-BigData1 Exam - Topic 4 Question 48 Discussion

Actual exam question for Alibaba's ACA-BigData1 exam

Question #: 48
Topic #: 4

MaxCompute tasks contain computational tasks and non-computational tasks. The computational tasks require actual operations on data stored in the table. MaxCompute parses the task to obtain its execution plan, and submits the task for execution. The noncomputational tasks require substantial reading of and modification to metadata information. Therefore, the task is not parsed, and no execution plan is provided. The task is directly submitted for execution. The latter one has a faster response speed than the former one. Which of the following operations on the table t_test is a computational task?

Adesc t_test

Balter table t_test add columns (comments string);

Cselect count(*) from t_test;

Dtruncate table t_test;

Show Suggested Answer

Suggested Answer: C

by Christiane at May 06, 2022, 07:22 PM

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Brett

4 months ago

Totally agree, C is the clear choice here!

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Sheridan

4 months ago

Wait, I thought truncating a table was computational?

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Joana

4 months ago

A is just reading metadata, so not computational.

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In

4 months ago

I think B is non-computational, right?

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Arminda

5 months ago

C is definitely a computational task.

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Jacinta

5 months ago

Ah, I see what they're getting at. It's not just about resolving defects, but about being persuasive so that the development team takes the issues seriously and addresses them. Gotta be persistent!

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Leonor

5 months ago

From what I recall, it's definitely in the Billing and Cost Management console, but I'm not certain whether we do it for all accounts or just the payer account.

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Melynda

5 months ago

I'm a bit confused on this one. I'm not sure if row-level security or column-level security would be the better option to prevent the salespeople from viewing the credit card details.

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