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Databricks Databricks-Certified-Professional-Data-Engineer Exam Syllabus Topics:
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Reference: https://www.databricks.com/learn/certification/data-engineer-professional
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Databricks Certified Professional Data Engineer Sample Questions:
Which statement describes integration testing?
- A. Validates behavior of individual elements of your application
- B. Requires manual intervention
- C. Validates interactions between subsystems of your application
- D. Requires an automated testing framework
- E. Validates an application use case
Correct Answer: C 🗳️
Explanation: Only visible for DumpsQuestion members. You can sign-up / login (it's free).
A data engineer, User A, has promoted a new pipeline to production by using the REST API to programmatically create several jobs. A DevOps engineer, User B, has configured an external orchestration tool to trigger job runs through the REST API. Both users authorized the REST API calls using their personal access tokens.
Which statement describes the contents of the workspace audit logs concerning these events?
- A. Because the REST API was used for job creation and triggering runs, user identity will not be captured in the audit logs.
- B. Because these events are managed separately, User A will have their identity associated with the job creation events and User B will have their identity associated with the job run events.
- C. Because User B last configured the jobs, their identity will be associated with both the job creation events and the job run events.
- D. Because the REST API was used for job creation and triggering runs, a Service Principal will be automatically used to identity these events.
- E. Because User A created the jobs, their identity will be associated with both the job creation events and the job run events.
Correct Answer: B 🗳️
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The data governance team is reviewing code used for deleting records for compliance with GDPR. They note the following logic is used to delete records from the Delta Lake table named users .
Assuming that user_id is a unique identifying key and that delete_requests contains all users that have requested deletion, which statement describes whether successfully executing the above logic guarantees that the records to be deleted are no longer accessible and why?
- A. No; files containing deleted records may still be accessible with time travel until a vacuum command is used to remove invalidated data files.
- B. No; the Delta cache may return records from previous versions of the table until the cluster is restarted.
- C. Yes; the Delta cache immediately updates to reflect the latest data files recorded to disk.
- D. Yes; Delta Lake ACID guarantees provide assurance that the delete command succeeded fully and permanently purged these records.
- E. No; the Delta Lake delete command only provides ACID guarantees when combined with the merge into command.
Correct Answer: A 🗳️
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The Databricks CLI is used to trigger a run of an existing job by passing the job_id parameter. The response indicating the job run request was submitted successfully includes a field run_id. Which statement describes what the number alongside this field represents?
- A. The job_id and number of times the job has been run are concatenated and returned.
- B. The globally unique ID of the newly triggered run.
- C. The job_id is returned in this field.
- D. The number of times the job definition has been run in this workspace.
Correct Answer: B 🗳️
Explanation: Only visible for DumpsQuestion members. You can sign-up / login (it's free).
Given the following error traceback:
AnalysisException: cannot resolve ' heartrateheartrateheartrate ' given input columns:
[spark_catalog.database.table.device_id, spark_catalog.database.table.heartrate, spark_catalog.database.table.mrn, spark_catalog.database.table.time] The code snippet was:
display(df.select(3* " heartrate " ))
Which statement describes the error being raised?
- A. There is no column in the table named heartrateheartrateheartrate.
- B. There is a type error because a column object cannot be multiplied.
- C. There is a type error because a DataFrame object cannot be multiplied.
- D. There is a syntax error because the heartrate column is not correctly identified as a column.
Correct Answer: A 🗳️
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