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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Semi-Structured Data | 10% | - Parsing and flattening semi-structured data - VARIANT data type - Array and object operations |
| Topic 2: Data Loading & Unloading | 15% | - Data unloading and staging - File formats (JSON, CSV, Parquet, AVRO) - Bulk loading with COPY command - Data ingestion best practices - Continuous loading with Snowpipe |
| Topic 3: Performance Optimization & Monitoring | 4% | - Query profiling and performance tuning - Resource optimization techniques - Query history and monitoring |
| Topic 4: Cloud Platform Overview & Snowflake Key Concepts | 8% | - Virtual warehouse concepts and credit usage - Snowflake architecture layers (storage, compute, services) - Snowflake editions and features |
| Topic 5: Account Objects | 8% | - Resource monitors - Warehouses, databases, and schemas hierarchy - Organizations and accounts structure |
| Topic 6: Databases, Tables & Views | 18% | - Clustering and micro-partitions - Stored procedures and UDFs - Views (standard, materialized, secure) - Data manipulation (DML operations) - Table types (permanent, transient, temporary) - Column types and sequences |
| Topic 7: Security & Access Control | 10% | - Authentication (SSO, MFA) - Masking policies - Governance best practices - Row-level and column-level security - Authorization (roles, privileges) |
| Topic 8: Time Travel & Cloning | 10% | - Fail-safe concepts - UNDROP and historical data access - Time travel concepts and retention - Zero-copy cloning |
| Topic 9: Data Sharing | 12% | - Reader account management - Data listing marketplace - Shares and reader accounts - Private sharing vs. Data Exchange |
| Topic 10: Virtual Warehouses | 15% | - Warehouse creation and configuration - Cache concepts (warehouse, result, metadata) - Warehouse sizing and scaling - Multi-cluster warehouses - Warehouse monitoring and troubleshooting |
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問題 #681
What information is stored in the ACCESS_HlSTORY view?
答案：B
解題說明：
Details around the privileges that have been granted for all objects in an account.
TheACCESS_HISTORYview in Snowflake provides a comprehensive log of access control changes, including grants and revocations of privileges on all securable objects within the account. This information is crucial for auditing and monitoring the security posture of your Snowflake environment.
Here ' s how to understand and use theACCESS_HISTORYview:
Purpose of ACCESS_HISTORY View:It is designed to track changes in access controls, such as when a user or role is granted or revoked privileges on various Snowflake objects. This includes tables, schemas, databases, and more.
Querying ACCESS_HISTORY:To access this view, you can use the following SQL query pattern:
SELECT*FROMSNOWFLAKE.ACCOUNT_USAGE.ACCESS_HISTORYWHEREEVENT_TYPE = '
GRANT ' OREVENT_TYPE = ' REVOKE ' ;
Interpreting the Results:The results from theACCESS_HISTORYview include the object type, the specific privilege granted or revoked, the grantee (who received or lost the privilege), and the timestamp of the event.
This data is invaluable for audits and compliance checks.
Reference:For detailed information on theACCESS_HISTORYview and how to interpret its data, please visit the official Snowflake documentation: https://docs.snowflake.com/en/sql-reference/account-usage
/access_history.html
問題 #682
A Snowflake Marketplace listing has 50 subscribers accessing shared tables.
What determines the compute costs incurred by the subscribers?
答案：A
解題說明：
Snowflake Secure Data Sharing does not copy the shared data into each consumer's account. The provider continues to pay for the storage of the shared data.
When a consumer queries the shared data, the query runs using a virtual warehouse in the consumer's account. The consumer therefore pays the compute cost generated by that virtual warehouse.
The number of subscribers does not directly determine an individual subscriber's compute cost. Likewise, the provider's warehouse is not used to execute consumer queries against shared data.
References:
Snowflake Documentation - Introduction to Secure Data Sharing: https://docs.snowflake.com/en/user-guide
/data-sharing-intro
Snowflake Documentation - Data-sharing costs: https://docs.snowflake.com/en/user-guide/data-sharing- intro#data-sharing-costs
==
問題 #683
Which command is used to upload data files from a local directory or folder on a client machine to an internal stage, for a specified table?
答案：A
解題說明：
To upload data files from a local directory or folder on a client machine to an internal stage in Snowflake, thePUTcommand is used. ThePUTcommand takes files from the local file system and uploads them to an internal Snowflake stage (or a specified stage) for the purpose of preparing the data to be loaded into Snowflake tables.
Syntax Example:
PUT file:// < local_file_path > @ < stage_name > ;
This command is crucial for data ingestion workflows in Snowflake, especially when preparing to load data using theCOPY INTOcommand.
Reference: Snowflake Documentation on Using the PUT Command: https://docs.snowflake.com/en/sql- reference/sql/put.html
問題 #684
A Snowflake account has activated federated authentication.
What will occur when a user with a password that was defined by Snowflake attempts to log in to Snowflake?
答案：A
解題說明：
When federated authentication is activated in Snowflake, users authenticate via an external identity provider (IdP) rather than using Snowflake-managed credentials. Therefore, a user with a password defined by Snowflake will be unable to enter a password and must use their IdP credentials to log in.
問題 #685
Which command will provide an account with access to a share?
答案：A
解題說明：
The correct answer is A. ALTER SHARE .
To provide a consumer account with access to an existing share, the provider adds the consumer account to the share. This is done using the ALTER SHARE command with the ADD ACCOUNTS clause.
Example:
ALTER SHARE my_share
ADD ACCOUNTS = consumer_org.consumer_account;
Why A is correct:
ALTER SHARE modifies an existing share. Adding consumer accounts to a share gives those accounts access to the share.
Why the other options are incorrect:
B). CREATE SHARE creates a new share object, but it does not by itself add a consumer account to an existing share.
C). DESCRIBE SHARE displays metadata about a share; it does not grant access.
D). GRANT < privilege > ... TO SHARE grants database object privileges to the share, such as usage on a database or select on a table. It does not add a consumer account to the share.
Official Snowflake documentation reference:
Snowflake documentation explains that ALTER SHARE ... ADD ACCOUNTS is used to add consumer accounts to a share. Object privileges are granted separately to the share using GRANT ... TO SHARE.
Reference: Snowflake Documentation - ALTER SHARE; Snowflake Documentation - Secure Data Sharing; Snowflake Documentation - GRANT ... TO SHARE; SnowPro Core Study Guide - Data Protection and Governance.
問題 #686
......
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