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| Certification Vendor: | Snowflake |
|---|---|
| Exam Name: | SnowPro® Core Certification Exam |
| Exam Number: | COF-C02 |
| Related Certifications: | SnowPro Core Recertification (COF-R02) SnowPro Advanced: Data Engineer SnowPro Advanced: Architect |
| Certificate Validity Period: | 2 years |
| Available Languages: | English, Spanish |
| Passing Score: | 750 (scale 0–1000) |
| Exam Format: | Multiple choice, Multiple select |
| Real Exam Qty: | 100 |
| Exam Price: | 175 USD |
| Exam Duration: | 115 minutes |
| Recommended Training: | Snowflake Documentation & Tutorials Snowflake Official Learning Paths |
| Exam Registration: | Pearson VUE Registration Official Registration |
| Sample Questions: | Snowflake COF-C02 Sample Questions |
| Exam Way: | Online proctored or in-person at Pearson VUE test centers |
| Pre Condition: | No mandatory prerequisites; 6+ months hands-on experience with Snowflake strongly recommended |
| Official Syllabus URL: | https://learn.snowflake.com/en/certifications/snowpro-core/ |
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NEW QUESTION # 772
What are the main differences between the account usage views and the information schema views? (Select TWO).
Answer: A,B
NEW QUESTION # 773
How does the search optimization service use the search access path?
Answer: A
Explanation:
The correct answer is D. By identifying where column-level values are located in each micro-partition .
The Search Optimization Service improves query performance for highly selective queries. It works by creating and maintaining a persistent data structure called a search access path .
The search access path records information about where specific values are located within the table's micro- partitions. This allows Snowflake to find qualifying rows more efficiently without scanning unnecessary micro-partitions.
Why D is correct:
The search access path helps Snowflake identify which micro-partitions contain column values that match a query predicate. This improves pruning and can speed up selective point lookup queries.
Why the other options are incorrect:
A). Search optimization does not create a real-time index for every database. It is enabled on selected tables and columns.
B). A catalog of tables is not the purpose of the search access path.
C). Query history tracks executed queries. Search optimization does not work by listing previous queries.
Official Snowflake documentation reference:
Snowflake documentation describes the search access path as a persistent data structure maintained by the Search Optimization Service. It helps Snowflake determine which micro-partitions contain values needed by selective queries.
Reference: Snowflake Documentation - Search Optimization Service; Snowflake Documentation - Search access paths; SnowPro Core Study Guide - Performance Optimization.
NEW QUESTION # 774
What is the FASTEST way to load a specific, staged, discrete set of files using the COPY INTO < table > command?
Answer: A
Explanation:
The fastest way to load a specific, discrete set of staged files is to explicitly list the file names using the FILES parameter in the COPY INTO < table > command.
Snowflake recommends using the FILES parameter when you already know the exact files that need to be loaded. This avoids the overhead of scanning and matching files using a regular expression pattern.
Why D is correct:
The FILES parameter lets you specify an exact list of staged files to load. Since Snowflake does not need to evaluate a pattern against all available staged files, this is the fastest method for loading a known, specific set of files.
Why the other options are incorrect:
A). PATTERN uses regular expression matching, which can be useful, but it is generally slower than listing specific files with FILES.
B). A path prefix can narrow the file location, but it does not explicitly identify a discrete set of files.
C). Wildcard characters are not the recommended fastest method for loading a known set of staged files in Snowflake.
Official Snowflake documentation reference:
Snowflake COPY INTO < table > documentation states that the FILES parameter is used to specify a list of one or more files to load, and Snowflake recommends using FILES instead of PATTERN for better performance when loading a specific list of files.
Reference: Snowflake Documentation - COPY INTO < table > command, FILES and PATTERN parameters.
NEW QUESTION # 775
How can a user change which columns are referenced in a view?
Answer: D
Explanation:
In Snowflake, to change the columns referenced in a view, the view must be recreated with the required changes. The ALTER VIEW command does not allow changing the definition of a view; it can only be used to rename a view, convert it to or from a secure view, or add, overwrite, or remove a comment for a view. Therefore, the correct approach is to drop the existing view and create a new one with the desired column references.
NEW QUESTION # 776
Which multi-duster virtual warehouse setting will help process queued queries as quickly as possible?
Answer: A,D
NEW QUESTION # 777
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