Microsoft Exam DP-600 Topic 4 Question 21 Discussion

Actual exam question for Microsoft's DP-600 exam

Question #: 21
Topic #: 4

You have a Fabric tenant tha1 contains a takehouse named Lakehouse1. Lakehouse1 contains a Delta table named Customer.

When you query Customer, you discover that the query is slow to execute. You suspect that maintenance was NOT performed on the table.

You need to identify whether maintenance tasks were performed on Customer.

Solution: You run the following Spark SQL statement:

EXPLAIN TABLE customer

Does this meet the goal?

AYes

BNo

Show Suggested Answer

Suggested Answer: B

The Table.Profile function in Power Query is used to generate column statistics such as count, average, null count, distinct count, and standard deviation. You can use this function as follows:

Invoke the Power Query Editor.

Apply the Table.Profile function to your table.

The result will be a table where each row represents a column from the original table, and each column in the result represents a different statistic such as those listed in the requirement.

by Blair at Sep 08, 2024, 08:54 PM

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Candra

17 days ago

The EXPLAIN TABLE statement is a good start, but it's not going to directly answer the question of whether maintenance tasks were performed. It's like trying to solve a mystery by reading the table of contents - you need to dig a little deeper to find the real clues.

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Yuonne

3 days ago

User1: I think we should run the EXPLAIN TABLE statement on Customer.

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Suzi

20 days ago

But what if the query is slow because of something else? Maybe we should consider other options too.

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Marjory

22 days ago

I agree with Dudley, that should help identify if maintenance tasks were performed on Customer.

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Truman

22 days ago

Hmm, I don't think the EXPLAIN TABLE statement is the right solution here. It's like trying to figure out if your car needs an oil change by looking at the engine blueprint - it's just not the right tool for the job.

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Garry

12 hours ago

User2: We need a different approach to check if maintenance was done on the table.

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Rickie

1 days ago

User1: I agree, EXPLAIN TABLE won't tell us if maintenance tasks were performed on Customer.

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Francisca

24 days ago

While the EXPLAIN TABLE statement can give you insights into the table's structure and performance, it won't tell you whether maintenance tasks have been performed. You'll need to look at other metadata or logs to determine that.

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Jose

27 days ago

The EXPLAIN TABLE statement doesn't directly identify whether maintenance tasks were performed on the Customer table. It provides information about the table's structure and execution plan, but doesn't indicate if any maintenance activities have been carried out.

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Dudley

29 days ago

I think the solution is to run EXPLAIN TABLE customer.

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