Databricks Exam Databricks Certified Data Analyst Associate Topic 5 Question 32 Discussion

Actual exam question for Databricks's Databricks Certified Data Analyst Associate exam

Question #: 32
Topic #: 5

[All Databricks Certified Data Analyst Associate Questions]

How can a data analyst determine if query results were pulled from the cache?

AGo to the Query History tab and click on the text of the query. The slideout shows if the results came from the cache.

BGo to the Alerts tab and check the Cache Status alert.

CGo to the Queries tab and click on Cache Status. The status will be green if the results from the last run came from the cache.

DGo to the SQL Warehouse (formerly SQL Endpoints) tab and click on Cache. The Cache file will show the contents of the cache.

EGo to the Data tab and click Last Query. The details of the query will show if the results came from the cache.
Databricks SQL uses a query cache to store the results of queries that have been executed previously. This improves the performance and efficiency of repeated queries. To determine if a query result was pulled from the cache, you can go to the Query History tab in the Databricks SQL UI and click on the text of the query. A slideout will appear on the right side of the screen, showing the query details, including the cache status. If the result came from the cache, the cache status will show ''Cached''. If the result did not come from the cache, the cache status will show ''Not cached''. You can also see the cache hit ratio, which is the percentage of queries that were served from the cache.Reference: The answer can be verified from Databricks SQL documentation which provides information on how to use the query cache and how to check the cache status. Reference link: Databricks SQL - Query Cache

Show Suggested Answer

Suggested Answer: E

A user-defined function (UDF) is a function defined by a user, allowing custom logic to be reused in the user environment1.To apply a UDF to a table, the syntax isSELECT udf_name(column_name) AS alias FROM table_name2. Therefore, option E is the correct way to use the UDFpriceto create a new columncustomer_pricebased on the existing columnscustomer_spendandcustomer_unitsfrom the tablecustomer_summary.Reference:

What are user-defined functions (UDFs)?

User-defined scalar functions - SQL

by Eladia at Jan 24, 2025, 08:01 AM

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Lemuel

2 months ago

Ha! I bet the developers who wrote this question are sitting back and chuckling at how many people are going to get this wrong. Gotta love those tricky certification exams.

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Rana

13 days ago

C) Go to the Queries tab and click on Cache Status. The status will be green if the results from the last run came from the cache.

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Jess

24 days ago

B) Go to the Alerts tab and check the Cache Status alert.

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Jolene

27 days ago

A) Go to the Query History tab and click on the text of the query. The slideout shows if the results came from the cache.

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Arthur

2 months ago

This is a tricky one. I bet the answer is buried somewhere in the Databricks SQL documentation, which is like finding a needle in a haystack. Time to do some serious reading!

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Martin

16 days ago

I prefer going to the SQL Warehouse tab and clicking on Cache to check the cache file contents.

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Valentin

21 days ago

No, you should actually go to the Queries tab and click on Cache Status to see if the results came from the cache.

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Annamae

23 days ago

I think the answer is to go to the Query History tab and check the cache status.

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Delisa

2 months ago

Hold up, are they really asking me to go digging through all these different tabs just to figure out if the results were cached? Talk about a roundabout way to do things.

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Wade

2 months ago

Hmm, the cache status is important, but the question doesn't explicitly say to check the Query History tab. I'll have to think this through carefully.

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Monroe

1 months ago

C) Go to the Queries tab and click on Cache Status. The status will be green if the results from the last run came from the cache.

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Thomasena

1 months ago

B) Go to the Alerts tab and check the Cache Status alert.

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Tora

2 months ago

A) Go to the Query History tab and click on the text of the query. The slideout shows if the results came from the cache.

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Annice

3 months ago

Aha! Finally, a question that tests my understanding of the Databricks SQL query cache. This is crucial for optimizing performance, so I better get this right.

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Dudley

2 months ago

User 2: You can check the cache status in the Query History tab to see if the results came from the cache.

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Francoise

2 months ago

User 1: I always struggle with determining if query results were pulled from the cache.

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Lorean

3 months ago

I'm not sure, but I think option C) Go to the Queries tab and click on Cache Status might also be a good way to check if the results came from the cache.

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Jina

3 months ago

I agree with Isaiah. Checking the query history seems like the best way to determine if the results were pulled from the cache.

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Isaiah

3 months ago

I think the answer is A) Go to the Query History tab and click on the text of the query. The slideout shows if the results came from the cache.

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