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Snowflake COF-R02 Exam - Topic 1 Question 24 Discussion

Actual exam question for Snowflake's COF-R02 exam
Question #: 24
Topic #: 1
[All COF-R02 Questions]

Which of the following is an example of an operation that can be completed without requiring compute, assuming no queries have been executed previously?

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Suggested Answer: A

by Bette at Jan 26, 2024, 09:11 AM

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Kenia
6 months ago
C is the best choice here, no doubt!
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Lavina
6 months ago
I think D is definitely out of the question.
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Julie
6 months ago
Wait, how can C be done without compute? Sounds off.
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Jess
7 months ago
Totally agree, C seems like the only one that fits.
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Arthur
7 months ago
A and B need compute, right?
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Frederica
7 months ago
I recall that MIN and AVG often require a full scan of the data, so maybe they aren't the right choices here.
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Carmelina
7 months ago
I’m leaning towards option D because it seems like it might not need prior computation, but I’m not entirely confident.
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Gracia
7 months ago
I remember practicing similar questions, and I feel like aggregate functions like SUM or AVG usually require some computation.
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Coletta
8 months ago
I think the question is about operations that can be done without needing to compute anything first. I’m not sure if any of these options fit that.
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Justine
8 months ago
I'm leaning towards B. Calculating the average of a column seems like it could be done without any prior queries.
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Carlee
8 months ago
I'm a bit confused by the wording of the question. Can we assume the table has already been loaded into memory?
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Novella
8 months ago
Option C looks good to me - finding the minimum value in a column should be doable without any previous queries.
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Erick
8 months ago
Hmm, I'm not sure about this one. I'll need to think it through carefully before answering.
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Jackie
8 months ago
I think the answer is A. Calculating the sum of a column doesn't require any prior queries to be executed.
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Becky
8 months ago
I'm a bit confused on the difference between the reinforcement and punishment options. Wouldn't using a high-magnitude punishment every time the behavior occurs also work to reduce the frequency? Or is the differential reinforcement approach better?
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Stephanie
8 months ago
Hmm, this one seems a bit tricky. I'll need to think through the different backup scenarios and what could be causing the Convert to virtual option to be greyed out.
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Hailey
1 year ago
I'll go with C as well. Retrieving the minimum value seems like the most straightforward operation that wouldn't require too much compute power.
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Frederica
12 months ago
C) SELECT MIN(ORDER_AMT) FROM SALES;
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Elouise
12 months ago
B) SELECT AVG(ORDER_QTY) FROM SALES;
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Sherrell
12 months ago
A) SELECT SUM (ORDER_AMT) FROM SALES;
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Dean
1 year ago
Ha! 'Assuming no queries have been executed previously?' What kind of trick question is this? I bet the answer is 'None of the above' since any SQL query is going to require compute power.
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Chu
11 months ago
Exactly, it's a tricky question.
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Nathan
11 months ago
True, any SQL query will require compute power.
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Edwin
11 months ago
None of the above
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Melinda
11 months ago
D) SELECT ORDER_AMT * ORDER_QTY FROM SALES;
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Amber
12 months ago
C) SELECT MIN(ORDER_AMT) FROM SALES;
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Jacqueline
12 months ago
B) SELECT AVG(ORDER_QTY) FROM SALES;
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Yvonne
1 year ago
A) SELECT SUM (ORDER_AMT) FROM SALES;
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Bulah
1 year ago
I'm not sure about this one. Aren't all of these operations going to require some level of computation? Even just fetching the data seems like it would involve compute resources.
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Dahlia
1 year ago
C) SELECT MIN(ORDER_AMT) FROM SALES;
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Darrin
1 year ago
B) SELECT AVG(ORDER_QTY) FROM SALES;
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Lacey
1 year ago
A) SELECT SUM (ORDER_AMT) FROM SALES;
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Renea
1 year ago
But for MIN function, it doesn't require any computation, so it can be completed without queries.
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Deeanna
1 year ago
I disagree, I believe the answer is A) SELECT SUM (ORDER_AMT) FROM SALES.
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Renea
1 year ago
I think the answer is C) SELECT MIN(ORDER_AMT) FROM SALES.
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Jin
1 year ago
But wouldn't calculating the minimum value also require computation?
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Leatha
1 year ago
I think the correct answer is C. Selecting the minimum order amount from the sales table doesn't require compute, as it's just retrieving the lowest value.
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Tran
12 months ago
D) SELECT ORDER_AMT * ORDER_QTY FROM SALES;
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Miriam
1 year ago
C) SELECT MIN(ORDER_AMT) FROM SALES;
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Frederica
1 year ago
B) SELECT AVG(ORDER_QTY) FROM SALES;
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Dolores
1 year ago
A) SELECT SUM (ORDER_AMT) FROM SALES;
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Daron
1 year ago
I disagree, I believe the answer is C) SELECT MIN(ORDER_AMT) FROM SALES.
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Jin
1 year ago
I think the answer is A) SELECT SUM (ORDER_AMT) FROM SALES.
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