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Exam Code: Certified Data Engineer Professional

Exam Name Certified Data Engineer Professional

Certification Provider: Databricks

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Databricks Certified Data Engineer Professional Practice Test 13

Question 120

A billing team schedules ETL tasks for regions with varying input volumes. A reviewer sees that engineers chose Select an appropriate high-memory serverless task environment if supported. To verify A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution, what should the reviewer observe?

  1. One failing logical validation runs once and returns its failure
  2. The job marks an overlong task timed out and follows its failure path
  3. The task reports the chosen serverless environment and completes without OOM
  4. The repair or manual run processes the requested date instead of the default

Explanation

Correct Answer

C:

The task reports the chosen serverless environment and completes without OOM is the matching outcome for the implemented control (Select an appropriate high-memory serverless task environment if supported) and the stated requirement “A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution.”

Incorrect Answers

A:

This signal belongs to the adjacent case “A business validation failure must not be retried because repeated execution causes duplicate alerts,” whose remedy is Disable retries for the non-idempotent validation task. The observed result for the present requirement is The task reports the chosen serverless environment and completes without OOM.

B:

The job marks an overlong task timed out and follows its failure path would demonstrate the separate action Set a supported task timeout matching the SLA, which addresses “A task exceeds a strict 15-minute processing limit and should fail fast.” It does not verify the requirement “A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution” following Select an appropriate high-memory serverless task environment if supported.

D:

The repair or manual run processes the requested date instead of the default pertains to a different control (Define a job/task parameter and pass the date to the task) and a different need (A job must accept a date override to reprocess an earlier business day). It cannot establish that Select an appropriate high-memory serverless task environment if supported met the stated goal.

Question 121

A retail company deploys hourly data transformations under an operating-cost ceiling. Production acceptance depends on this condition: A short scheduled job should not pay for an always-running interactive cluster. What should the engineer configure?

  1. Use ephemeral Jobs compute or eligible serverless Jobs compute
  2. Choose compute and a trigger model appropriate to continuous workload execution
  3. Use a suitably sized SQL warehouse with the desired auto-stop policy
  4. Choose a compatible supported compute mode or adjust environment requirements

Explanation

Correct Answer

A:

The requested outcome is “A short scheduled job should not pay for an always-running interactive cluster.” Use ephemeral Jobs compute or eligible serverless Jobs compute is the matching action; The task starts on demand and compute terminates or scales down after the run gives observable acceptance evidence.

Incorrect Answers

B:

This action solves a different issue: “A stream needs continuously available low-latency processing rather than occasional scheduled runs.” Its normal signal is Stream latency remains within the continuous-processing service target. Here the requested behavior is “A short scheduled job should not pay for an always-running interactive cluster,” so that signal is not sufficient.

C:

Use a suitably sized SQL warehouse with the desired auto-stop policy is appropriate when “A SQL analyst dashboard requires low startup latency for interactive queries”; it would be verified by Query startup and idle warehouse behavior meet the dashboard latency target. It does not directly satisfy “A short scheduled job should not pay for an always-running interactive cluster,” whose relevant acceptance evidence is The task starts on demand and compute terminates or scales down after the run.

D:

Choose a compatible supported compute mode or adjust environment requirements is appropriate when “A Spark UDF needs a package unsupported by the current compute access mode”; it would be verified by The package imports and the governed workload executes successfully. It does not directly satisfy “A short scheduled job should not pay for an always-running interactive cluster,” whose relevant acceptance evidence is The task starts on demand and compute terminates or scales down after the run.

Question 122

A retail company deploys hourly data transformations under an operating-cost ceiling. An auditor must prove the outcome of Use ephemeral Jobs compute or eligible serverless Jobs compute for this requirement: A short scheduled job should not pay for an always-running interactive cluster. Which test result is best?

  1. Query startup and idle warehouse behavior meet the dashboard latency target
  2. Stream latency remains within the continuous-processing service target
  3. The task starts on demand and compute terminates or scales down after the run
  4. The pipeline update completes without manually provisioning a Spark cluster

Explanation

Correct Answer

C:

The team used Use ephemeral Jobs compute or eligible serverless Jobs compute to fulfill “A short scheduled job should not pay for an always-running interactive cluster.” Observing The task starts on demand and compute terminates or scales down after the run confirms the intended effect in the resulting workload.

Incorrect Answers

A:

That observation is a valid indicator for “A SQL analyst dashboard requires low startup latency for interactive queries” when using Use a suitably sized SQL warehouse with the desired auto-stop policy. The scenario instead tests “A short scheduled job should not pay for an always-running interactive cluster”; the relevant result is The task starts on demand and compute terminates or scales down after the run.

B:

This signal belongs to the adjacent case “A stream needs continuously available low-latency processing rather than occasional scheduled runs,” whose remedy is Choose compute and a trigger model appropriate to continuous workload execution. The observed result for the present requirement is The task starts on demand and compute terminates or scales down after the run.

D:

The pipeline update completes without manually provisioning a Spark cluster would demonstrate the separate action Select supported serverless Lakeflow pipeline execution, which addresses “An analytical transformation is supported on serverless pipelines with no custom cluster management need.” It does not verify the requirement “A short scheduled job should not pay for an always-running interactive cluster” following Use ephemeral Jobs compute or eligible serverless Jobs compute.

Question 123

A retail company deploys hourly data transformations under an operating-cost ceiling. Production acceptance depends on this condition: A SQL analyst dashboard requires low startup latency for interactive queries. What should the engineer configure?

  1. Use a suitably sized SQL warehouse with the desired auto-stop policy
  2. Use ephemeral Jobs compute or eligible serverless Jobs compute
  3. Choose compute and a trigger model appropriate to continuous workload execution
  4. Choose a compatible supported compute mode or adjust environment requirements

Explanation

Correct Answer

A:

Use a suitably sized SQL warehouse with the desired auto-stop policy addresses the requested condition (“A SQL analyst dashboard requires low startup latency for interactive queries”) rather than an adjacent platform task. The independent success check is: Query startup and idle warehouse behavior meet the dashboard latency target.

Incorrect Answers

B:

This action solves a different issue: “A short scheduled job should not pay for an always-running interactive cluster.” Its normal signal is The task starts on demand and compute terminates or scales down after the run. Here the requested behavior is “A SQL analyst dashboard requires low startup latency for interactive queries,” so that signal is not sufficient.

C:

The alternative Choose compute and a trigger model appropriate to continuous workload execution has a distinct purpose—A stream needs continuously available low-latency processing rather than occasional scheduled runs. It would not establish the required outcome (A SQL analyst dashboard requires low startup latency for interactive queries); the necessary verification concerns Query startup and idle warehouse behavior meet the dashboard latency target.

D:

The alternative Choose a compatible supported compute mode or adjust environment requirements has a distinct purpose—A Spark UDF needs a package unsupported by the current compute access mode. It would not establish the required outcome (A SQL analyst dashboard requires low startup latency for interactive queries); the necessary verification concerns Query startup and idle warehouse behavior meet the dashboard latency target.

Question 124

A retail company deploys hourly data transformations under an operating-cost ceiling. Following Use a suitably sized SQL warehouse with the desired auto-stop policy, the incident team needs evidence that A SQL analyst dashboard requires low startup latency for interactive queries. Which observation supports closure?

  1. Stream latency remains within the continuous-processing service target
  2. The task starts on demand and compute terminates or scales down after the run
  3. Query startup and idle warehouse behavior meet the dashboard latency target
  4. The pipeline update completes without manually provisioning a Spark cluster

Explanation

Correct Answer

C:

Query startup and idle warehouse behavior meet the dashboard latency target directly measures whether Use a suitably sized SQL warehouse with the desired auto-stop policy achieved the requirement “A SQL analyst dashboard requires low startup latency for interactive queries.” It checks the operating result rather than just a configured resource name.

Incorrect Answers

A:

That observation is a valid indicator for “A stream needs continuously available low-latency processing rather than occasional scheduled runs” when using Choose compute and a trigger model appropriate to continuous workload execution. The scenario instead tests “A SQL analyst dashboard requires low startup latency for interactive queries”; the relevant result is Query startup and idle warehouse behavior meet the dashboard latency target.

B:

The task starts on demand and compute terminates or scales down after the run would demonstrate the separate action Use ephemeral Jobs compute or eligible serverless Jobs compute, which addresses “A short scheduled job should not pay for an always-running interactive cluster.” It does not verify the requirement “A SQL analyst dashboard requires low startup latency for interactive queries” following Use a suitably sized SQL warehouse with the desired auto-stop policy.

D:

This signal belongs to the adjacent case “An analytical transformation is supported on serverless pipelines with no custom cluster management need,” whose remedy is Select supported serverless Lakeflow pipeline execution. The observed result for the present requirement is Query startup and idle warehouse behavior meet the dashboard latency target.

Question 125

A retail company deploys hourly data transformations under an operating-cost ceiling. Production acceptance depends on this condition: A Spark UDF needs a package unsupported by the current compute access mode. What should the engineer configure?

  1. Choose a compatible supported compute mode or adjust environment requirements
  2. Choose compute and a trigger model appropriate to continuous workload execution
  3. Use a suitably sized SQL warehouse with the desired auto-stop policy
  4. Select supported serverless Lakeflow pipeline execution

Explanation

Correct Answer

A:

For this scenario, Choose a compatible supported compute mode or adjust environment requirements implements the behavior required by “A Spark UDF needs a package unsupported by the current compute access mode.” Check the resulting state against: The package imports and the governed workload executes successfully.

Incorrect Answers

B:

The alternative Choose compute and a trigger model appropriate to continuous workload execution has a distinct purpose—A stream needs continuously available low-latency processing rather than occasional scheduled runs. It would not establish the required outcome (A Spark UDF needs a package unsupported by the current compute access mode); the necessary verification concerns The package imports and the governed workload executes successfully.

C:

This action solves a different issue: “A SQL analyst dashboard requires low startup latency for interactive queries.” Its normal signal is Query startup and idle warehouse behavior meet the dashboard latency target. Here the requested behavior is “A Spark UDF needs a package unsupported by the current compute access mode,” so that signal is not sufficient.

D:

Select supported serverless Lakeflow pipeline execution belongs to the separate case “An analytical transformation is supported on serverless pipelines with no custom cluster management need,” where The pipeline update completes without manually provisioning a Spark cluster would be expected. That differs from the condition in this stem: “A Spark UDF needs a package unsupported by the current compute access mode.”

Question 126

A retail company deploys hourly data transformations under an operating-cost ceiling. Following Choose a compatible supported compute mode or adjust environment requirements, the incident team needs evidence that A Spark UDF needs a package unsupported by the current compute access mode. Which observation supports closure?

  1. The package imports and the governed workload executes successfully
  2. Stream latency remains within the continuous-processing service target
  3. The task starts on demand and compute terminates or scales down after the run
  4. The pipeline update completes without manually provisioning a Spark cluster

Explanation

Correct Answer

A:

The acceptance criterion for “A Spark UDF needs a package unsupported by the current compute access mode” is The package imports and the governed workload executes successfully; this is the expected evidence after Choose a compatible supported compute mode or adjust environment requirements.

Incorrect Answers

B:

This signal belongs to the adjacent case “A stream needs continuously available low-latency processing rather than occasional scheduled runs,” whose remedy is Choose compute and a trigger model appropriate to continuous workload execution. The observed result for the present requirement is The package imports and the governed workload executes successfully.

C:

This signal belongs to the adjacent case “A short scheduled job should not pay for an always-running interactive cluster,” whose remedy is Use ephemeral Jobs compute or eligible serverless Jobs compute. The observed result for the present requirement is The package imports and the governed workload executes successfully.

D:

That observation is a valid indicator for “An analytical transformation is supported on serverless pipelines with no custom cluster management need” when using Select supported serverless Lakeflow pipeline execution. The scenario instead tests “A Spark UDF needs a package unsupported by the current compute access mode”; the relevant result is The package imports and the governed workload executes successfully.

Question 127

A retail company deploys hourly data transformations under an operating-cost ceiling. A scheduled release needs to solve this problem: A stream needs continuously available low-latency processing rather than occasional scheduled runs. What should the team implement?

  1. Use a suitably sized SQL warehouse with the desired auto-stop policy
  2. Choose compute and a trigger model appropriate to continuous workload execution
  3. Use ephemeral Jobs compute or eligible serverless Jobs compute
  4. Choose a compatible supported compute mode or adjust environment requirements

Explanation

Correct Answer

B:

Choose compute and a trigger model appropriate to continuous workload execution addresses the requested condition (“A stream needs continuously available low-latency processing rather than occasional scheduled runs”) rather than an adjacent platform task. The independent success check is: Stream latency remains within the continuous-processing service target.

Incorrect Answers

A:

Use a suitably sized SQL warehouse with the desired auto-stop policy is appropriate when “A SQL analyst dashboard requires low startup latency for interactive queries”; it would be verified by Query startup and idle warehouse behavior meet the dashboard latency target. It does not directly satisfy “A stream needs continuously available low-latency processing rather than occasional scheduled runs,” whose relevant acceptance evidence is Stream latency remains within the continuous-processing service target.

C:

Use ephemeral Jobs compute or eligible serverless Jobs compute is appropriate when “A short scheduled job should not pay for an always-running interactive cluster”; it would be verified by The task starts on demand and compute terminates or scales down after the run. It does not directly satisfy “A stream needs continuously available low-latency processing rather than occasional scheduled runs,” whose relevant acceptance evidence is Stream latency remains within the continuous-processing service target.

D:

This action solves a different issue: “A Spark UDF needs a package unsupported by the current compute access mode.” Its normal signal is The package imports and the governed workload executes successfully. Here the requested behavior is “A stream needs continuously available low-latency processing rather than occasional scheduled runs,” so that signal is not sufficient.

Question 128

A retail company deploys hourly data transformations under an operating-cost ceiling. After configuring Choose compute and a trigger model appropriate to continuous workload execution, the engineer must validate: A stream needs continuously available low-latency processing rather than occasional scheduled runs. What evidence is decisive?

  1. Query startup and idle warehouse behavior meet the dashboard latency target
  2. The package imports and the governed workload executes successfully
  3. Stream latency remains within the continuous-processing service target
  4. The task starts on demand and compute terminates or scales down after the run

Explanation

Correct Answer

C:

The team used Choose compute and a trigger model appropriate to continuous workload execution to fulfill “A stream needs continuously available low-latency processing rather than occasional scheduled runs.” Observing Stream latency remains within the continuous-processing service target confirms the intended effect in the resulting workload.

Incorrect Answers

A:

This signal belongs to the adjacent case “A SQL analyst dashboard requires low startup latency for interactive queries,” whose remedy is Use a suitably sized SQL warehouse with the desired auto-stop policy. The observed result for the present requirement is Stream latency remains within the continuous-processing service target.

B:

The package imports and the governed workload executes successfully pertains to a different control (Choose a compatible supported compute mode or adjust environment requirements) and a different need (A Spark UDF needs a package unsupported by the current compute access mode). It cannot establish that Choose compute and a trigger model appropriate to continuous workload execution met the stated goal.

D:

The task starts on demand and compute terminates or scales down after the run would demonstrate the separate action Use ephemeral Jobs compute or eligible serverless Jobs compute, which addresses “A short scheduled job should not pay for an always-running interactive cluster.” It does not verify the requirement “A stream needs continuously available low-latency processing rather than occasional scheduled runs” following Choose compute and a trigger model appropriate to continuous workload execution.

Question 129

A retail company deploys hourly data transformations under an operating-cost ceiling. The engineering team must satisfy this constraint: An analytical transformation is supported on serverless pipelines with no custom cluster management need. Select the best technical action.

  1. Select supported serverless Lakeflow pipeline execution
  2. Use a suitably sized SQL warehouse with the desired auto-stop policy
  3. Choose compute and a trigger model appropriate to continuous workload execution
  4. Use ephemeral Jobs compute or eligible serverless Jobs compute

Explanation

Correct Answer

A:

The requested outcome is “An analytical transformation is supported on serverless pipelines with no custom cluster management need.” Select supported serverless Lakeflow pipeline execution is the matching action; The pipeline update completes without manually provisioning a Spark cluster gives observable acceptance evidence.

Incorrect Answers

B:

Use a suitably sized SQL warehouse with the desired auto-stop policy belongs to the separate case “A SQL analyst dashboard requires low startup latency for interactive queries,” where Query startup and idle warehouse behavior meet the dashboard latency target would be expected. That differs from the condition in this stem: “An analytical transformation is supported on serverless pipelines with no custom cluster management need.”

C:

Choose compute and a trigger model appropriate to continuous workload execution is appropriate when “A stream needs continuously available low-latency processing rather than occasional scheduled runs”; it would be verified by Stream latency remains within the continuous-processing service target. It does not directly satisfy “An analytical transformation is supported on serverless pipelines with no custom cluster management need,” whose relevant acceptance evidence is The pipeline update completes without manually provisioning a Spark cluster.

D:

The alternative Use ephemeral Jobs compute or eligible serverless Jobs compute has a distinct purpose—A short scheduled job should not pay for an always-running interactive cluster. It would not establish the required outcome (An analytical transformation is supported on serverless pipelines with no custom cluster management need); the necessary verification concerns The pipeline update completes without manually provisioning a Spark cluster.

Question 130

A retail company deploys hourly data transformations under an operating-cost ceiling. An auditor must prove the outcome of Select supported serverless Lakeflow pipeline execution for this requirement: An analytical transformation is supported on serverless pipelines with no custom cluster management need. Which test result is best?

  1. The package imports and the governed workload executes successfully
  2. Query startup and idle warehouse behavior meet the dashboard latency target
  3. The pipeline update completes without manually provisioning a Spark cluster
  4. The task starts on demand and compute terminates or scales down after the run

Explanation

Correct Answer

C:

The team used Select supported serverless Lakeflow pipeline execution to fulfill “An analytical transformation is supported on serverless pipelines with no custom cluster management need.” Observing The pipeline update completes without manually provisioning a Spark cluster confirms the intended effect in the resulting workload.

Incorrect Answers

A:

The package imports and the governed workload executes successfully pertains to a different control (Choose a compatible supported compute mode or adjust environment requirements) and a different need (A Spark UDF needs a package unsupported by the current compute access mode). It cannot establish that Select supported serverless Lakeflow pipeline execution met the stated goal.

B:

This signal belongs to the adjacent case “A SQL analyst dashboard requires low startup latency for interactive queries,” whose remedy is Use a suitably sized SQL warehouse with the desired auto-stop policy. The observed result for the present requirement is The pipeline update completes without manually provisioning a Spark cluster.

D:

This signal belongs to the adjacent case “A short scheduled job should not pay for an always-running interactive cluster,” whose remedy is Use ephemeral Jobs compute or eligible serverless Jobs compute. The observed result for the present requirement is The pipeline update completes without manually provisioning a Spark cluster.