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Snowflake ADA-C02 Exam Syllabus Topics:

Section	Objectives
Topic 1: Data Loading and Unloading	- Bulk and continuous data ingestion 1. Stages and file formats 2. COPY INTO operations
Topic 2: Account and Resource Administration	- Account configuration and management 1. Users, roles, and permissions 2. Resource monitors and governance basics
Topic 3: Performance and Monitoring	- Performance tuning and optimization 1. Query performance analysis 2. Warehouse sizing and scaling strategies
Topic 4: Data Protection and Recovery	- Backup and recovery mechanisms 1. Time Travel and Fail-safe concepts 2. Cloning and data recovery strategies
Topic 5: Security and Access Control	- Authentication and authorization 1. Network policies and secure access 2. Role-based access control (RBAC)
Topic 6: Snowflake Architecture and Virtual Warehouses	- Snowflake architecture concepts 1. Separation of storage and compute 2. Virtual warehouse usage and scaling

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Snowflake SnowPro Advanced Administrator ADA-C02 Sample Questions (Q55-Q60):

NEW QUESTION # 55
A Snowflake Administrator needs to set up Time Travel for a presentation area that includes facts and dimensions tables, and receives a lot of meaningless and erroneous IoT data. Time Travel is being used as a component of the company's data quality process in which the ingestion pipeline should revert to a known quality data state if any anomalies are detected in the latest load. Data from the past 30 days may have to be retrieved because of latencies in the data acquisition process.
According to best practices, how should these requirements be met? (Choose two.)

A. Only TRANSIENT tables should be used to ensure referential integrity between the fact and dimension tables.
B. The DATA_RETENTION_TIME_IN_DAYS should be kept at the account level and never used for lower level containers (databases and schemas).
C. The fact and dimension tables should have the same DATA_RETENTION_TIME_IN_DAYS.
D. The fact and dimension tables should be cloned together using the same Time Travel options to reduce potential referential integrity issues with the restored data.
E. Related data should not be placed together in the same schema. Facts and dimension tables should each have their own schemas.

Answer: C,D

Explanation:
To ensure consistent recovery, fact and dimension tables must have the same DATA_RETENTION_TIME_IN_DAYS, so they can be restored to the same point in time.
Cloning the fact and dimension tables together with consistent Time Travel options ensures data integrity and avoids referential mismatches when reverting to a prior state.

NEW QUESTION # 56
MY_TABLE is a table that has not been updated or modified for several days. On 01 January 2021 at 07:01, a user executed a query to update this table. The query ID is '8e5d0ca9-005e-44e6-b858-a8f5b37c5726'. It is now 07:30 on the same day.
Which queries will allow the user to view the historical data that was in the table before this query was executed? (Choose three.)

A. SELECT * FROM my_table WITH TIME TRAVEL(OFFSET => -60*30);
B. SELECT * FROM my_table PRIOR TO STATEMENT '8e5d0ca9-005e-44e6-b858-a8f5b37c5726';
C. SELECT * FROM my_table AT(TIMESTAMP => '2021-01-01 07:00:00'::timestamp);
D. SELECT * FROM my_table AT(OFFSET => -60*30);
E. SELECT * FROM TIME_TRAVEL('MY_TABLE', 2021-01-01 07:00:00);
F. SELECT * FROM my_table BEFORE(STATEMENT => '8e5d0ca9-005e-44e6-b858-a8f5b37c5726');

Answer: C,D,F

Explanation:
Use Time Travel to view past table versions: (B) selects the table "as of" 07:00 via AT(TIMESTAMP => ...); (E) selects "as of" 30 minutes earlier via AT(OFFSET => -60*30); (F) selects the state before the specified statement via BEFORE(STATEMENT => '<query_id>').

NEW QUESTION # 57
A Snowflake Administrator has a multi-cluster virtual warehouse and is using the Snowflake Business-Critical edition. The minimum number of clusters is set to 2 and the maximum number of clusters is set to 10. This configuration works well for the standard workload, rarely exceeding 5 running clusters. However, once a month the Administrator notes that there are a few complex long-running queries that are causing increased queue time and the warehouse reaches its maximum limit at 10 clusters.
Which solutions will address the issues happening once a month? (Choose two.)

A. Examine the complex queries and determine if they can be made more efficient using clustering keys or materialized views.
B. Increase the multi-cluster maximum to 20 or more clusters.
C. Use a task to increase the cluster size for the time period that the more complex queries are running and another task to reduce the size of the cluster once the complex queries complete.
D. Have the group running the complex monthly queries use a separate appropriately-sized warehouse to support their workload.
E. Increase the minimum number of clusters started in the multi-cluster configuration to 5.

Answer: A,D

Explanation:
The best way to handle the once-a-month complex workload is to use a separate, appropriately-sized warehouse dedicated to that workload and to optimize the complex queries with techniques like clustering keys or materialized views. These approaches resolve queueing and performance issues without overspending on always running more clusters.

NEW QUESTION # 58
What are benefits of using Snowflake organizations? (Choose two.)

A. User administration is simplified across all accounts within the organization.
B. Administrators can change Snowflake account editions on-demand based on need.
C. Administrators can simplify data movement across all accounts within the organization.
D. Administrators have the ability to create accounts in any available cloud provider or region.
E. Administrators can monitor and understand usage across all accounts in the organization.

Answer: D,E

Explanation:
Snowflake organizations provide centralized usage monitoring across all accounts in the organization and give administrators the ability to create accounts in any supported cloud provider or region. These are the key benefits of using organizations in Snowflake.

NEW QUESTION # 59
What are characteristics of data replication in Snowflake? (Choose three.)

A. Databases created from shares can be replicated.
B. Users can have unlimited primary databases and they can be replicated to an unlimited number of accounts if all accounts are within the same organization.
C. Replication can only occur within the same cloud provider.
D. The ALTER DATABASE ... ENABLE REPLICATION TO ACCOUNTS command must be issued from the primary account.
E. Users must be granted REPLICATIONADMIN privileges in order to enable replication.
F. To start replication run the ALTER DATABASE ... REFRESH command on the account where the secondary database resides.

Answer: A,D,F

Explanation:
Replication must be enabled on the primary account using ALTER DATABASE ... ENABLE REPLICATION TO ACCOUNTS.
To refresh replicated data, ALTER DATABASE ... REFRESH is executed on the secondary database.
Databases created from shares can also be replicated.

NEW QUESTION # 60
......

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