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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Performance Optimization | 20% | - Query Performance
|
| Topic 2: Accounts and Security | 25% | - Access Control and Authentication
|
| Topic 3: Snowflake Architecture | 30% | - Storage and Compute Design
|
| Topic 4: Data Engineering | 25% | - Data Loading and Pipelines
|
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NEW QUESTION # 33
Which feature provides the capability to define an alternate cluster key for a table with an existing cluster key?
Answer: C
NEW QUESTION # 34
How can the Snowpipe REST API be used to keep a log of data load history?
Answer: B
Explanation:
* Snowpipe is a service that automates and optimizes the loading of data from external stages into Snowflake tables. Snowpipe uses a queue to ingest files as they become available in the stage. Snowpipe also provides REST endpoints to load data and retrieve load history reports1.
* The loadHistoryScan endpoint returns the history of files that have been ingested by Snowpipe within a specified time range. The endpoint accepts the following parameters2:
* pipe: The fully-qualified name of the pipe to query.
* startTimeInclusive: The start of the time range to query, in ISO 8601 format. The value must be within the past 14 days.
* endTimeExclusive: The end of the time range to query, in ISO 8601 format. The value must be later than the start time and within the past 14 days.
* recentFirst: A boolean flag that indicates whether to return the most recent files first or last. The default value is false, which means the oldest files are returned first.
* showSkippedFiles: A boolean flag that indicates whether to include files that were skipped by Snowpipe in the response. The default value is false, which means only files that were loaded are returned.
* The loadHistoryScan endpoint can be used to keep a log of data load history by calling it periodically with a suitable time range. The best option among the choices is D, which is to call loadHistoryScan every 10 minutes for a 15-minute time range. This option ensures that the endpoint is called frequently enough to capture the latest files that have been ingested, and that the time range is wide enough to avoid missing any files that may have been delayed or retried by Snowpipe. The other options are either too infrequent, too narrow, or use the wrong endpoint3.
References:
* 1: Introduction to Snowpipe | Snowflake Documentation
* 2: loadHistoryScan | Snowflake Documentation
* 3: Monitoring Snowpipe Load History | Snowflake Documentation
NEW QUESTION # 35
Which command do you run to remove files from stage?
Answer: C
NEW QUESTION # 36
There are two databases in an account, named fin_db and hr_db which contain payroll and employee data, respectively. Accountants and Analysts in the company require different permissions on the objects in these databases to perform their jobs. Accountants need read-write access to fin_db but only require read-only access to hr_db because the database is maintained by human resources personnel.
An Architect needs to create a read-only role for certain employees working in the human resources department.
Which permission sets must be granted to this role?
Answer: A
Explanation:
* To create a read-only role for certain employees working in the human resources department, the role needs to have the following permissions on the hr_db database:
* USAGE on the database: This allows the role to access the database and see its schemas and objects.
* USAGE on all schemas in the database: This allows the role to access the schemas and see their objects.
* SELECT on all tables in the database: This allows the role to query the data in the tables.
* Option A is the correct answer because it grants the minimum permissions required for a read-only role on the hr_db database.
* Option B is incorrect because SELECT on schemas is not a valid permission. Schemas only support USAGE and CREATE permissions.
* Option C is incorrect because MODIFY on the database is not a valid permission. Databases only support USAGE, CREATE, MONITOR, and OWNERSHIP permissions. Moreover, USAGE on tables is not sufficient for querying the data. Tables support SELECT, INSERT, UPDATE, DELETE, TRUNCATE, REFERENCES, and OWNERSHIP permissions.
* Option D is incorrect because REFERENCES on tables is not relevant for querying the data.
REFERENCES permission allows the role to create foreign key constraints on the tables.
https://docs.snowflake.com/en/user-guide/security-access-control-privileges.html#database-privileges
https://docs.snowflake.com/en/user-guide/security-access-control-privileges.html#schema-privileges
https://docs.snowflake.com/en/user-guide/security-access-control-privileges.html#table-privileges
NEW QUESTION # 37
A media company needs a data pipeline that will ingest customer review data into a Snowflake table, and apply some transformations. The company also needs to use Amazon Comprehend to do sentiment analysis and make the de-identified final data set available publicly for advertising companies who use different cloud providers in different regions.
The data pipeline needs to run continuously ang efficiently as new records arrive in the object storage leveraging event notifications. Also, the operational complexity, maintenance of the infrastructure, including platform upgrades and security, and the development effort should be minimal.
Which design will meet these requirements?
Answer: D
NEW QUESTION # 38
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