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Databricks Certified Data Analyst Associate Exam - Topic 4 Question 20 Discussion

Actual exam question for Databricks's Databricks Certified Data Analyst Associate exam
Question #: 20
Topic #: 4
[All Databricks Certified Data Analyst Associate Questions]

A data analyst runs the following command:

SELECT age, country

FROM my_table

WHERE age >= 75 AND country = 'canada';

Which of the following tables represents the output of the above command?

A)

B)

C)

D)

E)

Show Suggested Answer Hide Answer
Suggested Answer: A

Option A uses theSELECT DISTINCTstatement to remove duplicate rows from thetable_bronzeand create a new tabletable_silverwith the deduplicated data.This is the correct way to deduplicate data using Spark SQL12. Option B simply inserts all the rows fromtable_bronzeintotable_silver, without removing any duplicates. Option C is not a valid syntax for Spark SQL, as there is noMERGE DEDUPLICATEstatement. Option D appends all the rows fromtable_bronzeintotable_silver, without removing any duplicates. Option E overwrites the existing data intable_silverwith the data fromtable_bronze, without removing any duplicates.Reference:Delete Duplicate using SPARK SQL,Spark SQL - How to Remove Duplicate Rows


by Eun at Aug 05, 2024, 04:23 PM

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Teri
4 months ago
Totally agree, Option C seems right!
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Thomasena
4 months ago
I’m not sure if the output matches the query exactly.
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Jules
4 months ago
Wait, are there really that many seniors in Canada?
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Taryn
4 months ago
Definitely looks like Option C to me!
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Marya
5 months ago
The query filters for age 75+ in Canada.
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Antonio
5 months ago
I think I saw a question like this in our last mock exam. If I remember correctly, the output should have only Canadian records with age 75 or older.
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Nobuko
5 months ago
I vaguely recall that the output should only include records that meet both conditions. I just can't remember if that was in option C or D.
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Youlanda
5 months ago
I feel like I need to double-check the age and country columns in the options. I hope one of them clearly shows ages 75 and above from Canada.
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Jacqueline
5 months ago
I think the query is pretty straightforward, but I'm not sure which option matches the output. I remember practicing similar questions, though.
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Antonio
5 months ago
The SQL query is clear, but I'm not sure which of the table options best represents the results. I'll need to think this through carefully.
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Luis
5 months ago
Option E seems to match the query output, with the age and country columns showing the filtered data. I'll go with that.
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Makeda
5 months ago
Hmm, I'm a bit unsure about this one. I'll need to carefully review the SQL syntax and the image options to determine the right answer.
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Raina
5 months ago
This SQL query looks straightforward, I should be able to identify the correct output table.
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Isidra
6 months ago
Based on the SQL query, Option E is the correct answer. The table shows the age and country columns with the filtered data as expected.
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Xochitl
6 months ago
No problem, I've got this. I'll just follow the instructions step-by-step and make sure I get the deployment spec file set up correctly.
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Michell
6 months ago
Hmm, I'm not entirely sure about this one. I'll have to think it through carefully. Is it the qualifications or the duties that would be used for the evaluation criteria?
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Lorean
6 months ago
I'm pretty confident this is asking about the second repository used in Red Hat OpenShift GitOps, which is the Environment configuration repository.
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Melda
10 months ago
Ah, the joys of SQL. Where else can you filter out data faster than a grandparent filters out unsavory TV shows?
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Adolph
9 months ago
SQL queries can be really powerful for filtering data efficiently.
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Thea
9 months ago
Yes, I agree. Option E shows the records where age is 75 or above and country is Canada.
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Lelia
9 months ago
I think the correct table representation is Option E.
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Bettina
11 months ago
Wait, is this a trick question? I feel like I'm missing something here. I'd better go back and re-read the question carefully.
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Jesusa
9 months ago
Yeah, it's always good to double-check. We're here to help if you have any questions.
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Shantell
9 months ago
I agree, sometimes it's easy to miss important details. Let us know if you need any help.
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Rolland
9 months ago
Don't worry, take your time to review the question again. It's important to understand it fully.
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Coral
11 months ago
Sweet, this is my kind of question! The query is spot on, and Option E looks like the winner to me. Time to move on to the next one.
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Jesusita
11 months ago
Ah, this is a tricky one. The query seems straightforward, but I'm not too confident about Option E. I'll have to review the SQL concepts again.
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Glynda
10 months ago
William: Let's review the SQL concepts to be sure.
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Kris
10 months ago
User 3: Option E shows records where age is 75 or above and country is Canada.
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William
10 months ago
User 2: I'm not sure, I need to double-check the SQL query.
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Youlanda
11 months ago
User 1: I think Option E is correct.
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Lilli
11 months ago
The query looks good, but I'm not sure if Option E is the correct answer. I'd double-check the output to make sure it matches the expected result.
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Shasta
10 months ago
I think Option E is the correct answer based on the query provided.
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Pa
10 months ago
I agree, it's always good to double-check the output to ensure accuracy.
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Teri
11 months ago
I'm not sure, but based on the query, Option E seems to be the correct table.
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Marla
12 months ago
I agree with Felicidad, the query filters for age >= 75 and country = 'canada'.
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Felicidad
12 months ago
I think the answer is Option E.
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