Expert Answers to Databricks Exam Databricks-Certified-Data-Engineer-Associate Questions

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Databricks Certification Databricks Certified Data Engineer Associate Exam

Databricks Certified Data Engineer Associate Exam

Last Update Apr 26, 2024
Total Questions : 90

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Questions 4

Which of the following commands will return the number of null values in the member_id column?

Options:

SELECT count(member_id) FROM my_table;

SELECT count(member_id) - count_null(member_id) FROM my_table;

SELECT count_if(member_id IS NULL) FROM my_table;

SELECT null(member_id) FROM my_table;

SELECT count_null(member_id) FROM my_table;

Discussion 0

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Questions 5

A data engineer wants to schedule their Databricks SQL dashboard to refresh once per day, but they only want the associated SQL endpoint to be running when it is necessary.

Which of the following approaches can the data engineer use to minimize the total running time of the SQL endpoint used in the refresh schedule of their dashboard?

Options:

They can ensure the dashboard’s SQL endpoint matches each of the queries’ SQL endpoints.

They can set up the dashboard’s SQL endpoint to be serverless.

They can turn on the Auto Stop feature for the SQL endpoint.

They can reduce the cluster size of the SQL endpoint.

They can ensure the dashboard’s SQL endpoint is not one of the included query’s SQL endpoint.

Discussion 0

Questions 6

A data engineer is designing a data pipeline. The source system generates files in a shared directory that is also used by other processes. As a result, the files should be kept as is and will accumulate in the directory. The data engineer needs to identify which files are new since the previous run in the pipeline, and set up the pipeline to only ingest those new files with each run.

Which of the following tools can the data engineer use to solve this problem?

Options:

Unity Catalog

Delta Lake

Databricks SQL

Data Explorer

Auto Loader

Discussion 0

Questions 7

In which of the following file formats is data from Delta Lake tables primarily stored?

Options:

Delta