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Snowflake COF-C02 Exam - Topic 10 Question 49 Discussion

Which Query Profile metrics will provide information that can be used to improve query performance? (Select TWO).
B) Remote disk IO and D) Pruning
A) Synchronization
C) Local disk IO
E) Spillage

Snowflake COF-C02 Exam - Topic 10 Question 49 Discussion

Actual exam question for Snowflake's COF-C02 exam
Question #: 49
Topic #: 10
[All COF-C02 Questions]

Which Query Profile metrics will provide information that can be used to improve query performance? (Select TWO).

Show Suggested Answer Hide Answer
Suggested Answer: B, D

Two key metrics in Snowflake's Query Profile that provide insights for performance improvement are:

Remote Disk IO: This measures the time the query spends waiting on remote disk access, indicating potential performance issues related to I/O bottlenecks.

Pruning: This metric reflects how effectively Snowflake's micro-partition pruning is reducing the data scanned. Better pruning (more partitions excluded) leads to faster query performance, as fewer micro-partitions need to be processed.

These metrics are essential for identifying and addressing inefficiencies in data retrieval and storage access, optimizing overall query performance.


by Francine at Jan 10, 2025, 08:41 PM

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Francene
9 months ago
Synchronization? Not sure how that helps with query speed.
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Lamonica
9 months ago
Wait, are we sure about Spillage? Seems less relevant.
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Jose
9 months ago
Pruning can really help with performance, no doubt!
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Stefan
10 months ago
I think Remote disk IO is important too.
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Rickie
10 months ago
Local disk IO is definitely a key metric!
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Elmer
10 months ago
I’m leaning towards Local disk IO and Pruning, but I wish I had reviewed more on Synchronization before the exam.
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Christoper
10 months ago
Pruning sounds familiar, and I feel like it could help with query performance, but I’m not confident about the other option.
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Fatima
10 months ago
I remember practicing with a question that mentioned Remote disk IO, and it seemed important for performance, but I can't recall if it's one of the answers here.
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Tijuana
11 months ago
I think Local disk IO might be one of the metrics since it relates to how data is accessed, but I'm not sure about the second one.
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Luis
11 months ago
Pruning and Remote disk IO - those are the two I'd go with. Pruning can show me where the query is being optimized, and Remote disk IO will tell me if there are any issues with the data source that could be slowing things down.
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Theron
11 months ago
I'm a little unsure about this one. I know Synchronization and Local disk IO are related to performance, but I'm not sure if they're the best options for this specific question. I'll have to review my notes to make sure.
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Carmelina
11 months ago
Okay, let's see. I'm pretty sure Pruning and Spillage are the two metrics that would be most helpful here. Those should give me some good insights into where the query is bottlenecking.
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Nana
11 months ago
Hmm, this one seems tricky. I'll need to think carefully about which metrics would provide the most useful information for improving query performance.
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Vivan
2 years ago
B and E, without a doubt. Remote disk IO and Spillage are the dynamic duo of query optimization. Just don't ask me to explain what they actually do - that's what the textbooks are for!
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Jolene
2 years ago
A and D, all the way! Synchronization and Pruning are the secret sauce to unlocking that sweet, sweet query performance. Although, I do hear Remote disk IO is the new craze among the kids these days.
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Ira
2 years ago
Yeah, Remote disk IO seems to be gaining popularity too. It's worth looking into.
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Frederica
2 years ago
I agree, Synchronization and Pruning are key for improving query performance.
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India
2 years ago
C and E, for sure. Local disk IO and Spillage are the bread and butter of any good query optimization strategy. Just don't tell my boss I said that.
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Celestina
2 years ago
I agree, those metrics can really make a difference in optimizing queries.
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Pilar
2 years ago
Local disk IO and Spillage are definitely key metrics for improving query performance.
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Keshia
2 years ago
I'm not sure about Synchronization and Remote disk IO, do they really impact query performance?
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Vernice
2 years ago
I agree with Elina, those metrics are crucial for optimizing queries.
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Elina
2 years ago
I think Local disk IO and Pruning can help improve query performance.
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Shalon
2 years ago
D and E definitely! Pruning and Spillage are key to optimizing query performance. But who doesn't love a good disk IO binge, am I right?
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Arminda
2 years ago
Local disk IO is important too, can't overlook that metric.
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Brittani
2 years ago
Remote disk IO can also play a significant role in improving query performance.
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Lauran
2 years ago
Definitely, Pruning and Spillage are key metrics to focus on.
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Jaime
2 years ago
I agree, D and E are crucial for optimizing query performance.
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