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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Loading & Unloading | 15% | - Data unloading and staging - File formats (JSON, CSV, Parquet, AVRO) - Continuous loading with Snowpipe - Bulk loading with COPY command - Data ingestion best practices |
| Topic 2: Databases, Tables & Views | 18% | - Column types and sequences - Views (standard, materialized, secure) - Clustering and micro-partitions - Table types (permanent, transient, temporary) - Data manipulation (DML operations) - Stored procedures and UDFs |
| Topic 3: Performance Optimization & Monitoring | 4% | - Query history and monitoring - Resource optimization techniques - Query profiling and performance tuning |
| Topic 4: Cloud Platform Overview & Snowflake Key Concepts | 8% | - Virtual warehouse concepts and credit usage - Snowflake editions and features - Snowflake architecture layers (storage, compute, services) |
| Topic 5: Account Objects | 8% | - Organizations and accounts structure - Warehouses, databases, and schemas hierarchy - Resource monitors |
| Topic 6: Security & Access Control | 10% | - Governance best practices - Authentication (SSO, MFA) - Row-level and column-level security - Masking policies - Authorization (roles, privileges) |
| Topic 7: Data Sharing | 12% | - Private sharing vs. Data Exchange - Data listing marketplace - Shares and reader accounts - Reader account management |
| Topic 8: Time Travel & Cloning | 10% | - Zero-copy cloning - UNDROP and historical data access - Time travel concepts and retention - Fail-safe concepts |
| Topic 9: Virtual Warehouses | 15% | - Multi-cluster warehouses - Warehouse creation and configuration - Warehouse sizing and scaling - Warehouse monitoring and troubleshooting - Cache concepts (warehouse, result, metadata) |
| Topic 10: Semi-Structured Data | 10% | - Array and object operations - VARIANT data type - Parsing and flattening semi-structured data |
>> COF-C03 Questions Answers <<
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NEW QUESTION # 1139
Who can grant object privileges in a regular schema?
Answer: A
Explanation:
In a regular schema within Snowflake, the object owner has the privilege to grant object privileges. The object owner is typically the role that created the object or to whom the ownership of the object has been transferred78.
References = [ COF-C03 ] SnowPro Core Certification Exam Study Guide
NEW QUESTION # 1140
Where would a Snowflake user find information about query activity from 90 days ago?
Answer: A
Explanation:
To find information about query activity from 90 days ago, a Snowflake user should use the account_usage.
query_history_archive view. This view is designed to provide access to historical query data beyond the default 14-day retention period found in the standard query_history view. It allows users to analyze and audit past query activities for up to 365 days after the date of execution, which includes the 90-day period mentioned.
References:
[ COF-C03 ] SnowPro Core Certification Exam Study Guide
Snowflake Documentation on Account Usage Schema1
NEW QUESTION # 1141
Which Snowflake edition supports a dedicated metadata store and separate compute clusters that are inaccessible to other Snowflake customers?
Answer: D
Explanation:
The correct answer is D. Virtual Private Snowflake, or VPS .
Virtual Private Snowflake is the Snowflake offering designed for organizations with strict isolation requirements. It provides dedicated Snowflake resources, including an isolated metadata store and dedicated compute resources that are not shared with other Snowflake customers.
Why D is correct:
VPS provides the highest level of isolation among the listed Snowflake editions. It is intended for customers with enhanced security, compliance, or regulatory requirements.
Why the other options are incorrect:
A). Standard Edition is the base Snowflake edition and does not provide dedicated isolated metadata and compute clusters.
B). Enterprise Edition adds features such as multi-cluster warehouses and extended Time Travel, but it does not provide VPS-level isolation.
C). Business Critical Edition provides enhanced security and compliance features, but not the dedicated isolated Snowflake environment described in the question.
Official Snowflake documentation reference:
Snowflake documentation describes Virtual Private Snowflake as offering dedicated resources and isolation, including dedicated metadata services and compute resources inaccessible to other customers.
Reference: Snowflake Documentation - Snowflake editions; Virtual Private Snowflake; SnowPro Core Study Guide - Snowflake Architecture.
==
NEW QUESTION # 1142
Which of the following indicates that it may be appropriate to use a clustering key for a table? (Select TWO).
Answer: A,E
Explanation:
A clustering key in Snowflake is used to co-locate similar data within the same micro-partitions to improve query performance, especially for large tables where data is not naturally ordered or has become fragmented due to extensive DML operations. The appropriate use of a clustering key can lead to improved scan efficiency and better column compression, resulting in faster query execution times.
The indicators that it may be appropriate to use a clustering key for a table include:
D . Queries on the table are running slower than expected: This can happen when the data in the table is not well-clustered, leading to inefficient scans during query execution.
E . The clustering depth for the table is large: A large clustering depth indicates that the table's data is spread across many micro-partitions, which can degrade query performance as more data needs to be scanned.
References:
Snowflake Documentation on Clustering Keys & Clustered Tables
Snowflake Documentation on SYSTEM$CLUSTERING_INFORMATION
Stack Overflow discussion on cluster key selection in Snowflake
NEW QUESTION # 1143
A user needs to create a materialized view in the schema MYDB.MYSCHEMA. Which statements will provide this access?
Answer: B
Explanation:
To provide a user with the necessary access to create a materialized view in a schema, the user must be granted a role that has the CREATE MATERIALIZED VIEW privilege on that schema. First, the role is granted to the user, and then the privilege is granted to the role
NEW QUESTION # 1144
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