Snowflake ARA-C01 Certification Exam Sample Questions

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Snowflake ARA-C01 Sample Questions:

01. Four tables are candidates for a clustering key, and the architect can justify the automatic clustering cost for only one of them.
Which is the right candidate?
a) A 40 TB fact table whose queries almost always filter on EVENT_DATE.
b) A 6 TB table whose analysts filter on a different column in almost every query.
c) A 3 TB staging table truncated and fully reloaded every night.
d) A 1 GB dimension table joined on its surrogate key in every query.
 
02. A Kafka connector will run unattended on a Kafka Connect cluster and load into Snowflake through a dedicated service user. The security team will allow neither an interactive login flow nor a shared password for that user.
How does the Snowflake Kafka connector authenticate?
a) Username and password from the connector configuration, with multi-factor authentication enforced on the service user.
b) Key-pair authentication: the connector holds the private key and the matching public key is assigned to the Snowflake service user.
c) Federated authentication through the account's SAML identity provider, using the same single sign-on flow as interactive users.
d) A network policy that allow-lists the Kafka Connect hosts, so the connector is identified by its source address.
 
03. Two views are defined over the same table with identical SELECT statements. One is created as a secure view and the other as a standard view. A developer runs the same query against each, gets the same rows back, and finds that the Query Profile shows far less detail for one of them.
What explains the difference?
a) The developer’s role lacks SELECT on the secure view, so no plan was produced for it.
b) The secure view is materialised, so its profile collapses to a single scan instead of the underlying operators.
c) The standard view reads additional hidden metadata that is not accessible through a secure view.
d) A secure view’s internals are not exposed in the Query Profile, so the operators behind it are withheld.
 
04. A SYSADMIN creates a set of database objects and then transfers ownership of them to a custom role. That custom role is not granted to SYSADMIN, nor to any role above it in the system hierarchy.
What are two consequences?
(Choose two.)
a) The SECURITYADMIN role can neither view the objects nor modify their access grants.
b) The SYSADMIN role can no longer manage the objects it created.
c) Because the objects were created by SYSADMIN, the custom role will be able to manage them.
d) The objects can be viewed by both the SECURITYADMIN and USERADMIN roles.
e) The SECURITYADMIN role can grant itself access to the objects and modify their grants.
 
05. Company A and Company B hold accounts in the same region and on the same cloud. Company A wants to give Company B a single dataset that joins tables from two different databases in Company A’s account.
What should Company A do?
a) Create two shares, one for each database
b) Create a standard view that selects from both databases and add that standard view to one share
c) Create a single share that includes both databases
d) Create a secure view that selects from both databases and add that view to one share
 
06. Search optimization was enabled on MY_TABLE for two columns, and two further columns were added afterwards in a second statement:
ALTER TABLE MY_TABLE ADD SEARCH OPTIMIZATION ON EQUALITY(col1, col2);
ALTER TABLE MY_TABLE ADD SEARCH OPTIMIZATION ON EQUALITY(col3, col4);
What is the result?
a) The second statement fails, because ON EQUALITY accepts only one column per statement.
b) Both statements succeed, and the table ends up with search optimization on all four columns.
c) The second statement fails, because search optimization can be added to a table only once and the existing configuration must be dropped first.
d) Both statements succeed, but the second replaces the first, so only col3 and col4 end up optimized.
 
07. An architect is costing a cross-region disaster recovery design in which a database is replicated from a primary account to a secondary account in another region.
Which account is billed for the data transfer and for the compute the refresh consumes?
a) The target account is charged for both the data transfer and the compute charges.
b) The primary account is charged for both the data transfer and the compute charges.
c) The primary account is charged for the data transfer and the target account for the compute.
d) The primary account is charged for the compute and the target account for the data transfer.
 
08. Before dropping a base table, an architect needs every view and materialized view across the account that references it, whether or not anyone has queried them recently.
Which surface answers that?
a) SNOWFLAKE.ACCOUNT_USAGE.ACCESS_HISTORY
b) GET_OBJECT_REFERENCES, called for each view
c) SNOWFLAKE.ACCOUNT_USAGE.OBJECT_DEPENDENCIES
d) GET_DDL on each schema, searched for the table name
 
09. One department runs a small number of complex aggregations over a single very large table. The aggregations read a narrow slice of it, the table is loaded once a month and barely changes between loads, and the columns the aggregations group on are not the table's clustering key. The queries are slow, and the department wants the fix to need as little ongoing maintenance as possible.
What should the architect implement?
a) A non-materialized view over the aggregation, clustered on the grouping columns.
b) A materialized view over the aggregation, clustered on the grouping columns.
c) A summary table refreshed by a scheduled task after each monthly load.
d) A temporary table, clustered on the grouping columns, created each time the aggregation is run.
 
10. An architect is evaluating external functions as the way to expose an existing REST scoring service to analysts in SQL, and needs to know what the mechanism cannot do before committing to it.
Which statements about external functions are correct?
(Choose two.)
a) Snowflake calls the remote service directly over HTTPS, so no cloud proxy service is needed.
b) Only functions can be external; there is no external stored procedure, so any multi-statement orchestration has to remain inside Snowflake.
c) An external function is scalar — it returns a single value for each input row — so a service that returns a variable number of rows per call has to be modelled differently.
d) Future grants on external functions let the architect pre-authorise functions created later in the schema.

Answers:

Question: 01
Answer: a		 Question: 02
Answer: b		 Question: 03
Answer: d		 Question: 04
Answer: b, e		 Question: 05
Answer: d
Question: 06
Answer: b		 Question: 07
Answer: a		 Question: 08
Answer: c		 Question: 09
Answer: b		 Question: 10
Answer: b, c

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