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| Section | Weight | Objectives |
|---|---|---|
| Account Management and Security | 25% | - Role-Based Access Control (RBAC) - User management and authentication - Security and governance management - Account management and billing |
| Data Management | 20% | - Time Travel and Fail-safe - Data loading and unloading - Database object management - Data sharing and replication |
| Data Protection and Disaster Recovery | 15% | - Data replication - Backup and restore procedures - Snowflake Marketplace - Disaster recovery planning |
| Performance and Monitoring | 20% | - Clustering keys - Query performance optimization - Query history and profiling - Resource monitoring and management |
| Virtual Warehouses | 20% | - Warehouse sizing and scaling - Warehouse performance optimization - Resource monitors - Virtual warehouse creation and management |
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55. Frage
A team of developers created a new schema for a new project. The developers are assigned the role DEV_TEAM which was set up using the following statements:
USE ROLE SECURITYADMIN;
CREATE ROLE DEV_TEAM;
GRANT USAGE, CREATE SCHEMA ON DATABASE DEV_DB01 TO ROLE DEV_TEAM;
GRANT USAGE ON WAREHOUSE DEV_WH TO ROLE DEV_TEAM;
Each team member's access is set up using the following statements:
USE ROLE SECURITYADMIN;
CREATE ROLE JDOE_PROFILE;
CREATE USER JDOE LOGIN_NAME = 'JDOE' DEFAULT ROLE='JDOE_PROFILE';
GRANT ROLE JDOE_PROFILE TO USER JDOE;
GRANT ROLE DEV_TEAM TO ROLE JDOE_PROFILE;
New tables created by any of the developers are not accessible by the team as a whole.
How can an Administrator address this problem?
Antwort: A
Begründung:
Future grants allow privileges to be automatically granted on objects created in the future within a schema. By configuring future grants on the schema, privileges such as SELECT can automatically be granted to the DEV_TEAM role whenever new tables are created. This ensures that all developers using the DEV_TEAM role can access newly created tables without requiring manual privilege grants after each table creation.
56. Frage
A retailer uses a TRANSACTIONS table (100M rows, 1.2 TB) that has been clustered by the STORE_ID column (varchar(50)). The vast majority of analyses on this table are grouped by STORE_ID to look at store performance.
There are 1000 stores operated by the retailer but most sales come from only 20 stores. The Administrator notes that most queries are currently experiencing poor pruning, with large amounts of bytes processed by even simple queries.
Why is this occurring?
Antwort: B
Begründung:
Clustering is effective when data distribution across the clustering key is relatively uniform. In this case, most transactions are concentrated in only 20 of the 1000 stores, leading to skewed data distribution. This imbalance causes poor pruning, since large portions of micro-partitions still need to be scanned, even for queries targeting specific stores.
57. Frage
What are the MINIMUM grants required on the database, schema, and table for a stream to be properly created and managed?
Antwort: C
Begründung:
Database: USAGE is required to access the database.
Schema: USAGE and CREATE STREAM are required to create streams in the schema.
Table: SELECT is needed so the stream can track changes on the table.
58. Frage
What are characteristics of data replication in Snowflake? (Choose three.)
Antwort: C,D,E
Begründung:
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.
59. Frage
A Snowflake Administrator needs to persist all virtual warehouse configurations for auditing and backups. Given a table already exists with the following schema:
Table Name: VWH_META
Column 1: SNAPSHOT_TIME TIMESTAMP_NTZ
Column 2: CONFIG VARIANT
Which commands should be executed to persist the warehouse data at the time of execution in JSON format in the table VWH_META?
Antwort: C
Begründung:
To persist warehouse configurations in JSON format, the result set from SHOW WAREHOUSES must be captured and converted into a variant object. Using OBJECT_CONSTRUCT(*) with RESULT_SCAN(LAST_QUERY_ID()) stores the full warehouse configuration snapshot as JSON in the CONFIG VARIANT column, along with the timestamp.
60. Frage
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