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  1. Home
  2. Snowflake Certification
  3. COF-C02 Exam
  4. Snowflake.COF-C02.v2026-01-13.q618 Dumps
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Question 391

Which Snowflake mechanism is used to limit the number of micro-partitions scanned by a query?

Correct Answer: C
Query pruning in Snowflake is the mechanism used to limit the number of micro-partitions scanned by a query. By analyzing the filters and conditions applied in a query, Snowflake can skip over micro-partitions that do not contain relevant data, thereby reducing the amount of data processed and improving query performance. This technique is particularly effective for large datasets and is a key component of Snowflake's performance optimization features.
References:
* Snowflake Documentation: Query Performance Optimization
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Question 392

What is the MAXIMUM Time Travel retention period for a transient table?

Correct Answer: B
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Question 393

Which of the following features, associated with Continuous Data Protection (CDP), require additional Snowflake-provided data storage? (Choose two.)

Correct Answer: B,C
The features associated with Continuous Data Protection (CDP) that require additional Snowflake-provided data storage are Time Travel and Fail-safe. Time Travel allows users to access historical data within a defined period, while Fail-safe provides an additional layer of data protection beyond the Time Travel period. Reference: [COF-C02] SnowPro Core Certification Exam Study Guide
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Question 394

What is used to denote a pre-computed data set derived from a SELECT query specification and stored for later use?

Correct Answer: C
A materialized view in Snowflake denotes a pre-computed data set derived from a SELECT query specification and stored for later use. Unlike standard views, which dynamically compute the data each time the view is accessed, materialized views store the result of the query at the time it is executed, thereby speeding up access to the data, especially for expensive aggregations on large datasets.
References:
* Snowflake Documentation: Materialized Views
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Question 395

What is a Snowflake recommendation for the use of key pair authentication?

Correct Answer: C
Snowflake recommends automating key pair rotation to improve security and comply with industry best practices. SSH key pairs are used for key-pair authentication with clients like SnowSQL or Snowpipe.
Reference:
Snowflake Docs: Key Pair Authentication & Management
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