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Exam SnowPro Core topic 1 question 315 discussion

Actual exam question from Snowflake's SnowPro Core
Question #: 315
Topic #: 1
[All SnowPro Core Questions]

What happens to the underlying table data when a CLUSTER BY clause is added to a Snowflake table?

  • A. Data is hashed by the cluster key to facilitate fast searches for common data values
  • B. Larger micro-partitions are created for common data values to reduce the number of partitions that must be scanned
  • C. Smaller micro-partitions are created for common data values to allow for more parallelism
  • D. Data may be colocated by the cluster key within the micro-partitions to improve pruning performance
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Suggested Answer: D 🗳️

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halol
Highly Voted 1 year, 11 months ago
I think D: https://docs.snowflake.com/en/user-guide/tables-clustering-keys.html#benefits-of-defining-clustering-keys-for-very-large-tables
upvoted 12 times
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_yyukta
Most Recent 8 months, 3 weeks ago
Selected Answer: D
D is correct
upvoted 1 times
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misaaa18
1 year, 2 months ago
Selected Answer: D
ans is D.
upvoted 1 times
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otsumy
1 year, 3 months ago
must be D.
upvoted 1 times
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nagarajanbala
1 year, 7 months ago
D is correct
upvoted 2 times
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lordchao
1 year, 7 months ago
D is correct
upvoted 2 times
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fahfouhi94
1 year, 9 months ago
Selected Answer: D
D is good answer
upvoted 2 times
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sakis213
1 year, 10 months ago
Selected Answer: D
that would be D
upvoted 2 times
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SV1122
1 year, 10 months ago
A clustering key is a subset of columns in a table (or expressions on a table) that are explicitly designated to co-locate the data in the table in the same micro-partitions. This is useful for very large tables where the ordering was not ideal (at the time the data was inserted/loaded) or extensive DML has caused the table’s natural clustering to degrade. https://docs.snowflake.com/en/user-guide/tables-clustering-keys.html#benefits-of-defining-clustering-keys-for-very-large-tables
upvoted 3 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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