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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 12

Question 110

A customer-data platform orchestrates multiple mutually dependent production transforms. An auditor must prove the outcome of Use a Jobs For each task with the array input and nested task for this requirement: The workflow should iterate one notebook task over a supplied list of region identifiers. Which test result is best?

  1. The job graph starts publication only after validation succeeds
  2. A run produces the intended task iteration for each region
  3. The correct branch runs for each tested validation value
  4. The job execution graph schedules both branches after ingestion

Explanation

Correct Answer

B:

The team used Use a Jobs For each task with the array input and nested task to fulfill “The workflow should iterate one notebook task over a supplied list of region identifiers.” Observing A run produces the intended task iteration for each region confirms the intended effect in the resulting workload.

Incorrect Answers

A:

The job graph starts publication only after validation succeeds pertains to a different control (Make publishing depend on successful completion of validation) and a different need (Data validation must finish before any downstream publishing task starts). It cannot establish that Use a Jobs For each task with the array input and nested task met the stated goal.

C:

The correct branch runs for each tested validation value would demonstrate the separate action Use a Jobs If/else condition task and condition-dependent downstream tasks, which addresses “The workflow must choose different branches based on a numeric validation result.” It does not verify the requirement “The workflow should iterate one notebook task over a supplied list of region identifiers” following Use a Jobs For each task with the array input and nested task.

D:

That observation is a valid indicator for “Two independent feature-processing tasks should run concurrently after ingestion” when using Create parallel dependent tasks with no dependency between the two transformations. The scenario instead tests “The workflow should iterate one notebook task over a supplied list of region identifiers”; the relevant result is A run produces the intended task iteration for each region.

Question 111

A billing team schedules ETL tasks for regions with varying input volumes. The engineering team must satisfy this constraint: A failed transient task should be retried a bounded number of times. Select the best technical action.

  1. Define a job/task parameter and pass the date to the task
  2. Configure task retries with appropriate retry count and interval
  3. Select an appropriate high-memory serverless task environment if supported
  4. Set a supported task timeout matching the SLA

Explanation

Correct Answer

B:

For this scenario, Configure task retries with appropriate retry count and interval implements the behavior required by “A failed transient task should be retried a bounded number of times.” Check the resulting state against: The task retries only up to the configured limit on failure.

Incorrect Answers

A:

Define a job/task parameter and pass the date to the task is appropriate when “A job must accept a date override to reprocess an earlier business day”; it would be verified by The repair or manual run processes the requested date instead of the default. It does not directly satisfy “A failed transient task should be retried a bounded number of times,” whose relevant acceptance evidence is The task retries only up to the configured limit on failure.

C:

The alternative Select an appropriate high-memory serverless task environment if supported has a distinct purpose—A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution. It would not establish the required outcome (A failed transient task should be retried a bounded number of times); the necessary verification concerns The task retries only up to the configured limit on failure.

D:

Set a supported task timeout matching the SLA belongs to the separate case “A task exceeds a strict 15-minute processing limit and should fail fast,” where The job marks an overlong task timed out and follows its failure path would be expected. That differs from the condition in this stem: “A failed transient task should be retried a bounded number of times.”

Question 112

A billing team schedules ETL tasks for regions with varying input volumes. A reviewer sees that engineers chose Configure task retries with appropriate retry count and interval. To verify A failed transient task should be retried a bounded number of times, what should the reviewer observe?

  1. The task retries only up to the configured limit on failure
  2. The job marks an overlong task timed out and follows its failure path
  3. One failing logical validation runs once and returns its failure
  4. The repair or manual run processes the requested date instead of the default

Explanation

Correct Answer

A:

The task retries only up to the configured limit on failure is the matching outcome for the implemented control (Configure task retries with appropriate retry count and interval) and the stated requirement “A failed transient task should be retried a bounded number of times.”

Incorrect Answers

B:

The job marks an overlong task timed out and follows its failure path pertains to a different control (Set a supported task timeout matching the SLA) and a different need (A task exceeds a strict 15-minute processing limit and should fail fast). It cannot establish that Configure task retries with appropriate retry count and interval met the stated goal.

C:

That observation is a valid indicator for “A business validation failure must not be retried because repeated execution causes duplicate alerts” when using Disable retries for the non-idempotent validation task. The scenario instead tests “A failed transient task should be retried a bounded number of times”; the relevant result is The task retries only up to the configured limit on failure.

D:

That observation is a valid indicator for “A job must accept a date override to reprocess an earlier business day” when using Define a job/task parameter and pass the date to the task. The scenario instead tests “A failed transient task should be retried a bounded number of times”; the relevant result is The task retries only up to the configured limit on failure.

Question 113

A billing team schedules ETL tasks for regions with varying input volumes. The engineering team must satisfy this constraint: A business validation failure must not be retried because repeated execution causes duplicate alerts. Select the best technical action.

  1. Set a supported task timeout matching the SLA
  2. Disable retries for the non-idempotent validation task
  3. Configure task retries with appropriate retry count and interval
  4. Select an appropriate high-memory serverless task environment if supported

Explanation

Correct Answer

B:

Disable retries for the non-idempotent validation task addresses the requested condition (“A business validation failure must not be retried because repeated execution causes duplicate alerts”) rather than an adjacent platform task. The independent success check is: One failing logical validation runs once and returns its failure.

Incorrect Answers

A:

The alternative Set a supported task timeout matching the SLA has a distinct purpose—A task exceeds a strict 15-minute processing limit and should fail fast. It would not establish the required outcome (A business validation failure must not be retried because repeated execution causes duplicate alerts); the necessary verification concerns One failing logical validation runs once and returns its failure.

C:

This action solves a different issue: “A failed transient task should be retried a bounded number of times.” Its normal signal is The task retries only up to the configured limit on failure. Here the requested behavior is “A business validation failure must not be retried because repeated execution causes duplicate alerts,” so that signal is not sufficient.

D:

This action solves a different issue: “A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution.” Its normal signal is The task reports the chosen serverless environment and completes without OOM. Here the requested behavior is “A business validation failure must not be retried because repeated execution causes duplicate alerts,” so that signal is not sufficient.

Question 114

A billing team schedules ETL tasks for regions with varying input volumes. A production deployment uses Disable retries for the non-idempotent validation task to address: A business validation failure must not be retried because repeated execution causes duplicate alerts. Which signal should QA check?

  1. The repair or manual run processes the requested date instead of the default
  2. The task retries only up to the configured limit on failure
  3. The task reports the chosen serverless environment and completes without OOM
  4. One failing logical validation runs once and returns its failure

Explanation

Correct Answer

D:

One failing logical validation runs once and returns its failure directly measures whether Disable retries for the non-idempotent validation task achieved the requirement “A business validation failure must not be retried because repeated execution causes duplicate alerts.” It checks the operating result rather than just a configured resource name.

Incorrect Answers

A:

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 Disable retries for the non-idempotent validation task met the stated goal.

B:

This signal belongs to the adjacent case “A failed transient task should be retried a bounded number of times,” whose remedy is Configure task retries with appropriate retry count and interval. The observed result for the present requirement is One failing logical validation runs once and returns its failure.

C:

The task reports the chosen serverless environment and completes without OOM pertains to a different control (Select an appropriate high-memory serverless task environment if supported) and a different need (A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution). It cannot establish that Disable retries for the non-idempotent validation task met the stated goal.

Question 115

A billing team schedules ETL tasks for regions with varying input volumes. The engineering team must satisfy this constraint: A job must accept a date override to reprocess an earlier business day. Select the best technical action.

  1. Select an appropriate high-memory serverless task environment if supported
  2. Disable retries for the non-idempotent validation task
  3. Define a job/task parameter and pass the date to the task
  4. Configure task retries with appropriate retry count and interval

Explanation

Correct Answer

C:

Define a job/task parameter and pass the date to the task addresses the requested condition (“A job must accept a date override to reprocess an earlier business day”) rather than an adjacent platform task. The independent success check is: The repair or manual run processes the requested date instead of the default.

Incorrect Answers

A:

Select an appropriate high-memory serverless task environment if supported is appropriate when “A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution”; it would be verified by The task reports the chosen serverless environment and completes without OOM. It does not directly satisfy “A job must accept a date override to reprocess an earlier business day,” whose relevant acceptance evidence is The repair or manual run processes the requested date instead of the default.

B:

Disable retries for the non-idempotent validation task belongs to the separate case “A business validation failure must not be retried because repeated execution causes duplicate alerts,” where One failing logical validation runs once and returns its failure would be expected. That differs from the condition in this stem: “A job must accept a date override to reprocess an earlier business day.”

D:

Configure task retries with appropriate retry count and interval is appropriate when “A failed transient task should be retried a bounded number of times”; it would be verified by The task retries only up to the configured limit on failure. It does not directly satisfy “A job must accept a date override to reprocess an earlier business day,” whose relevant acceptance evidence is The repair or manual run processes the requested date instead of the default.

Question 116

A billing team schedules ETL tasks for regions with varying input volumes. Engineers have applied Define a job/task parameter and pass the date to the task. Which result establishes the required behavior: A job must accept a date override to reprocess an earlier business day?

  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 repair or manual run processes the requested date instead of the default
  4. The task reports the chosen serverless environment and completes without OOM

Explanation

Correct Answer

C:

The team used Define a job/task parameter and pass the date to the task to fulfill “A job must accept a date override to reprocess an earlier business day.” Observing The repair or manual run processes the requested date instead of the default confirms the intended effect in the resulting workload.

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 repair or manual run processes the requested date instead of the default.

B:

This signal belongs to the adjacent case “A task exceeds a strict 15-minute processing limit and should fail fast,” whose remedy is Set a supported task timeout matching the SLA. The observed result for the present requirement is The repair or manual run processes the requested date instead of the default.

D:

That observation is a valid indicator for “A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution” when using Select an appropriate high-memory serverless task environment if supported. The scenario instead tests “A job must accept a date override to reprocess an earlier business day”; the relevant result is The repair or manual run processes the requested date instead of the default.

Question 117

A billing team schedules ETL tasks for regions with varying input volumes. Production acceptance depends on this condition: A task exceeds a strict 15-minute processing limit and should fail fast. What should the engineer configure?

  1. Define a job/task parameter and pass the date to the task
  2. Set a supported task timeout matching the SLA
  3. Select an appropriate high-memory serverless task environment if supported
  4. Disable retries for the non-idempotent validation task

Explanation

Correct Answer

B:

The requested outcome is “A task exceeds a strict 15-minute processing limit and should fail fast.” Set a supported task timeout matching the SLA is the matching action; The job marks an overlong task timed out and follows its failure path gives observable acceptance evidence.

Incorrect Answers

A:

This action solves a different issue: “A job must accept a date override to reprocess an earlier business day.” Its normal signal is The repair or manual run processes the requested date instead of the default. Here the requested behavior is “A task exceeds a strict 15-minute processing limit and should fail fast,” so that signal is not sufficient.

C:

The alternative Select an appropriate high-memory serverless task environment if supported has a distinct purpose—A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution. It would not establish the required outcome (A task exceeds a strict 15-minute processing limit and should fail fast); the necessary verification concerns The job marks an overlong task timed out and follows its failure path.

D:

Disable retries for the non-idempotent validation task is appropriate when “A business validation failure must not be retried because repeated execution causes duplicate alerts”; it would be verified by One failing logical validation runs once and returns its failure. It does not directly satisfy “A task exceeds a strict 15-minute processing limit and should fail fast,” whose relevant acceptance evidence is The job marks an overlong task timed out and follows its failure path.

Question 118

A billing team schedules ETL tasks for regions with varying input volumes. A reviewer sees that engineers chose Set a supported task timeout matching the SLA. To verify A task exceeds a strict 15-minute processing limit and should fail fast, what should the reviewer observe?

  1. The task reports the chosen serverless environment and completes without OOM
  2. The repair or manual run processes the requested date instead of the default
  3. The task retries only up to the configured limit on failure
  4. The job marks an overlong task timed out and follows its failure path

Explanation

Correct Answer

D:

The team used Set a supported task timeout matching the SLA to fulfill “A task exceeds a strict 15-minute processing limit and should fail fast.” Observing The job marks an overlong task timed out and follows its failure path confirms the intended effect in the resulting workload.

Incorrect Answers

A:

That observation is a valid indicator for “A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution” when using Select an appropriate high-memory serverless task environment if supported. The scenario instead tests “A task exceeds a strict 15-minute processing limit and should fail fast”; the relevant result is The job marks an overlong task timed out and follows its failure path.

B:

The repair or manual run processes the requested date instead of the default would demonstrate the separate action Define a job/task parameter and pass the date to the task, which addresses “A job must accept a date override to reprocess an earlier business day.” It does not verify the requirement “A task exceeds a strict 15-minute processing limit and should fail fast” following Set a supported task timeout matching the SLA.

C:

This signal belongs to the adjacent case “A failed transient task should be retried a bounded number of times,” whose remedy is Configure task retries with appropriate retry count and interval. The observed result for the present requirement is The job marks an overlong task timed out and follows its failure path.

Question 119

A billing team schedules ETL tasks for regions with varying input volumes. The current design is incomplete because: A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution. Which change addresses it directly?

  1. Set a supported task timeout matching the SLA
  2. Select an appropriate high-memory serverless task environment if supported
  3. Define a job/task parameter and pass the date to the task
  4. Disable retries for the non-idempotent validation task

Explanation

Correct Answer

B:

For this scenario, Select an appropriate high-memory serverless task environment if supported implements the behavior required by “A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution.” Check the resulting state against: The task reports the chosen serverless environment and completes without OOM.

Incorrect Answers

A:

This action solves a different issue: “A task exceeds a strict 15-minute processing limit and should fail fast.” Its normal signal is The job marks an overlong task timed out and follows its failure path. Here the requested behavior is “A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution,” so that signal is not sufficient.

C:

The alternative Define a job/task parameter and pass the date to the task has a distinct purpose—A job must accept a date override to reprocess an earlier business day. It would not establish the required outcome (A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution); the necessary verification concerns The task reports the chosen serverless environment and completes without OOM.

D:

The alternative Disable retries for the non-idempotent validation task has a distinct purpose—A business validation failure must not be retried because repeated execution causes duplicate alerts. It would not establish the required outcome (A compute-intensive notebook needs additional supported memory while retaining serverless workflow execution); the necessary verification concerns The task reports the chosen serverless environment and completes without OOM.

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.