Free Practice Snowflake DEA-C01 Exam Questions 2025

Stay ahead with 100% Free SnowPro Advanced Data Engineer Certification DEA-C01 Dumps Practice Questions

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Total 240 Questions | Updated On: Jun 04, 2025

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Question 1

Data Engineer is using existing pipe that automates data loads using event notifications, later he figured out

the needs to modify pipe properties. For the same, He decided to recreate the pipe as best practice. He

followed the below steps for the same.

1. Query the SYSTEM$PIPE_STATUS function and verify that the pipe execution state is RUN-NING.

2. Recreate the pipe (using CREATE OR REPLACE PIPE).

3. Query the SYSTEM$PIPE_STATUS function and verify that the pipe execution state is RUN-NING.

Which are the Missing recommended steps while Recreating Pipes for Automated Data Loads?

A : CREATE OR REPLACE PIPE command will recreate the PIPE successfully.

B : Terminate the existing pipe (using ALTER PIPE … SET PIPE_EXECUTION_TERMINATE = true) before recreation

C : Pause the pipe (using ALTER PIPE … SET PIPE_EXECUTION_PAUSED = true) Pre & Post recreation & Resume after recreation (using ALTER PIPE … SET PIPE_EXECUTION_PAUSED = false).

D : Force the pipe to resume (using SYSTEM$PIPE_FORCE_RESUME).

Answer: C

Question 2

Data Engineer wants to analyze query performance & looking out for profiling information, He went to Query/Operator Details also called Profile Overview of Query Profile Interface & searching for statistics attributes around I/O. Which of the following information he can’t get from there?

A : Percentage scanned from cache — the percentage of data scanned from the local disk cache.

B : Bytes written — bytes written (e.g. when loading into a table).

C : External bytes scanned — bytes read from an external object, e.g. a stage.

D : Bytes sent over the wireframe — amount of data sent over the wireframe

E : Bytes read from result — bytes read from the result object.

Answer: D

Question 3

Putting a higher cardinality column before a lower cardinality column will generally reduce the effectiveness of clustering on the later column

A : TRUE

B : FALSE

Answer: A

Question 4

As part of Table Designing, Data Engineer added a timestamp column that inserts the current timestamp as the default value as records are loaded into a table. The intent is to capture the time when eachrecord was loaded into the table; however, the timestamps are earlier than the LOAD_TIME column values returned by COPY_HISTORY view (Account Usage). What could be reason of this issue?

A : LOAD_TIME column values returned by COPY_HISTORY view (Account Usage) gives the same time as returned by CURRENT_TIMESTAMP.

B : CURRENT_TIMESTAMP values might be different due to query gets executed in warehouse located in different region.

C : It might be possible that Cloud Provider hosted on Snowflake belongs to region having server time zone lagging Cluster time zone of warehouse where queries get processed & committed.

D : The reason is, CURRENT_TIMESTAMP is evaluated when the load operation is com-piled in cloud services rather than when the record is inserted into the table (i.e. when the transaction for the load operation is committed)

Answer: D

Question 5

Which of the below techniques leverages performance efficiencies by enabling large and complex Spark logical plans (in their entirety or in parts) to be processed in Snowflake, thus using Snowflake to do most of the actual work.

A : Query Pushdown

B : Query Optimization

C : Query Plan Pushdown

Answer: A

Page: 1 / 48

Total 240 Questions | Updated On: Jun 04, 2025

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