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Certified Data Engineer Associate Practice Test 34

Question 330

A source API requires a fetch at the top of every hour even when upstream storage contains no updates.

Which acceptance result most directly demonstrates that the intended solution works?

  1. There is one scheduled daily run, and late arrivals are reconciled according to the documented policy.
  2. After correcting Gold the repair run completes without needlessly rerunning successful bronze and silver steps.
  3. Execution occurs at each required hour regardless of whether a file event was observed.
  4. A controlled failed run sends a notification to the configured response channel.

Explanation

Correct Answer

C:

The business requirement is time-based, so file-dependent triggers could miss required clock boundaries.

Incorrect Answers

A:

There is one scheduled daily run, and late arrivals are reconciled according to the documented policy. That finding does not establish that execution occurs at each required hour regardless of whether a file event was observed.

B:

After correcting Gold the repair run completes without needlessly rerunning successful bronze and silver steps. That finding does not establish that execution occurs at each required hour regardless of whether a file event was observed.

D:

A controlled failed run sends a notification to the configured response channel. That finding does not establish that execution occurs at each required hour regardless of whether a file event was observed.

Question 331

A data owner wants a daily aggregation even when source files arrive late, but insists that the job must not execute twice in a day.

Which implementation decision best addresses this requirement?

  1. Use a daily scheduled trigger and explicit late-data handling in the transformation.
  2. Configure a supported file-arrival trigger with suitable debounce or wait settings where available.
  3. Inspect the Lakeflow Jobs run DAG and the first failed upstream task.
  4. Use supported job parameters passed at run invocation rather than editing source notebooks for each request.

Explanation

Correct Answer

A:

A reliable clock schedule plus late-data logic satisfies a calendar reporting obligation better than assuming prompt file arrival. The selected implementation is the one directly aligned with the constraints in the scenario.

Incorrect Answers

B:

Batching arrivals can reduce orchestration overhead while maintaining a bounded freshness delay.

C:

The graph distinguishes a root failed task from downstream tasks that were skipped due to dependency failures.

D:

Parameters separate runtime inputs from deployment code and enable repeatable executions.

Question 332

A data owner wants a daily aggregation even when source files arrive late, but insists that the job must not execute twice in a day.

Which acceptance result most directly demonstrates that the intended solution works?

  1. A burst of source files is processed in controlled runs rather than thousands of redundant jobs.
  2. The diagnosis identifies the extraction failure and explains why dependent steps did not execute.
  3. There is one scheduled daily run, and late arrivals are reconciled according to the documented policy.
  4. Two invocations pass different dates and process their respective partitions without code changes.

Explanation

Correct Answer

C:

A reliable clock schedule plus late-data logic satisfies a calendar reporting obligation better than assuming prompt file arrival.

Incorrect Answers

A:

A burst of source files is processed in controlled runs rather than thousands of redundant jobs. That finding does not establish that there is one scheduled daily run, and late arrivals are reconciled according to the documented policy.

B:

The diagnosis identifies the extraction failure and explains why dependent steps did not execute. That finding does not establish that there is one scheduled daily run, and late arrivals are reconciled according to the documented policy.

D:

Two invocations pass different dates and process their respective partitions without code changes. That finding does not establish that there is one scheduled daily run, and late arrivals are reconciled according to the documented policy.

Question 333

A source directory receives a thousand tiny files in rapid succession and the team wants to avoid starting a separate expensive run for every individual upload.

Which implementation decision best addresses this requirement?

  1. Use the supported repair-run workflow to rerun failed or skipped tasks when appropriate.
  2. Configure a supported file-arrival trigger with suitable debounce or wait settings where available.
  3. Read the job-run lifecycle status and task-level state instead of relying on an individual task's green indicator.
  4. Use supported secret management and identity-based access instead of embedding plaintext secrets in task definitions.

Explanation

Correct Answer

B:

Batching arrivals can reduce orchestration overhead while maintaining a bounded freshness delay. The selected implementation is the one directly aligned with the constraints in the scenario.

Incorrect Answers

A:

Repairing a run can preserve already successful task results rather than repeating the entire DAG.

C:

A job run is not complete merely because one stage succeeded; remaining tasks determine overall status.

D:

Job configuration should not expose sensitive credentials in broadly readable parameter values.

Question 334

A source directory receives a thousand tiny files in rapid succession and the team wants to avoid starting a separate expensive run for every individual upload.

Which acceptance result most directly demonstrates that the intended solution works?

  1. After correcting Gold the repair run completes without needlessly rerunning successful bronze and silver steps.
  2. The full run reaches a successful terminal state only after all required tasks complete.
  3. The job authenticates successfully while routine users cannot inspect the credential value.
  4. A burst of source files is processed in controlled runs rather than thousands of redundant jobs.

Explanation

Correct Answer

D:

Batching arrivals can reduce orchestration overhead while maintaining a bounded freshness delay.

Incorrect Answers

A:

After correcting Gold the repair run completes without needlessly rerunning successful bronze and silver steps. That finding does not establish that a burst of source files is processed in controlled runs rather than thousands of redundant jobs.

B:

The full run reaches a successful terminal state only after all required tasks complete. That finding does not establish that a burst of source files is processed in controlled runs rather than thousands of redundant jobs.

C:

The job authenticates successfully while routine users cannot inspect the credential value. That finding does not establish that a burst of source files is processed in controlled runs rather than thousands of redundant jobs.

Question 335

A Lakeflow job has completed bronze and silver tasks, but its final Gold task fails and an engineer wants to avoid repeating successful expensive upstream tasks.

Which implementation decision best addresses this requirement?

  1. Inspect the Lakeflow Jobs run DAG and the first failed upstream task.
  2. Use the supported repair-run workflow to rerun failed or skipped tasks when appropriate.
  3. Configure appropriate job failure notifications or alert destinations.
  4. Assign an approved service principal or other appropriate non-personal run-as identity.

Explanation

Correct Answer

B:

Repairing a run can preserve already successful task results rather than repeating the entire DAG. The selected implementation is the one directly aligned with the constraints in the scenario.

Incorrect Answers

A:

The graph distinguishes a root failed task from downstream tasks that were skipped due to dependency failures.

C:

Automated notifications reduce detection latency relative to periodic manual inspection.

D:

Operational identity decouples production execution permissions from staff membership changes.

Question 336

A Lakeflow job has completed bronze and silver tasks, but its final Gold task fails and an engineer wants to avoid repeating successful expensive upstream tasks.

Which acceptance result most directly demonstrates that the intended solution works?

  1. After correcting Gold the repair run completes without needlessly rerunning successful bronze and silver steps.
  2. The diagnosis identifies the extraction failure and explains why dependent steps did not execute.
  3. A controlled failed run sends a notification to the configured response channel.
  4. Removing the notebook author's user access does not break authorized scheduled production runs.

Explanation

Correct Answer

A:

Repairing a run can preserve already successful task results rather than repeating the entire DAG.

Incorrect Answers

B:

The diagnosis identifies the extraction failure and explains why dependent steps did not execute. That finding does not establish that after correcting Gold the repair run completes without needlessly rerunning successful bronze and silver steps.

C:

A controlled failed run sends a notification to the configured response channel. That finding does not establish that after correcting Gold the repair run completes without needlessly rerunning successful bronze and silver steps.

D:

Removing the notebook author's user access does not break authorized scheduled production runs. That finding does not establish that after correcting Gold the repair run completes without needlessly rerunning successful bronze and silver steps.

Question 337

An alert says the final task failed but the upstream cause is an earlier extraction failure that prevented all dependents from running.

Which implementation decision best addresses this requirement?

  1. Read the job-run lifecycle status and task-level state instead of relying on an individual task's green indicator.
  2. Use supported job parameters passed at run invocation rather than editing source notebooks for each request.
  3. Inspect the Lakeflow Jobs run DAG and the first failed upstream task.
  4. Use job-scoped or supported serverless compute with appropriate lifecycle controls.

Explanation

Correct Answer

C:

The graph distinguishes a root failed task from downstream tasks that were skipped due to dependency failures. The selected implementation is the one directly aligned with the constraints in the scenario.

Incorrect Answers

A:

A job run is not complete merely because one stage succeeded; remaining tasks determine overall status.

B:

Parameters separate runtime inputs from deployment code and enable repeatable executions.

D:

Job compute resources can be provisioned for a run and released afterward, reducing unnecessary idle costs.

Question 338

An alert says the final task failed but the upstream cause is an earlier extraction failure that prevented all dependents from running.

Which acceptance result most directly demonstrates that the intended solution works?

  1. The diagnosis identifies the extraction failure and explains why dependent steps did not execute.
  2. The full run reaches a successful terminal state only after all required tasks complete.
  3. Two invocations pass different dates and process their respective partitions without code changes.
  4. Compute is deallocated after task completion and billed usage matches the workload window.

Explanation

Correct Answer

A:

The graph distinguishes a root failed task from downstream tasks that were skipped due to dependency failures.

Incorrect Answers

B:

The full run reaches a successful terminal state only after all required tasks complete. That finding does not establish that the diagnosis identifies the extraction failure and explains why dependent steps did not execute.

C:

Two invocations pass different dates and process their respective partitions without code changes. That finding does not establish that the diagnosis identifies the extraction failure and explains why dependent steps did not execute.

D:

Compute is deallocated after task completion and billed usage matches the workload window. That finding does not establish that the diagnosis identifies the extraction failure and explains why dependent steps did not execute.

Question 339

An operations engineer wants to distinguish a workflow marked SUCCESS from one that still has a RUNNING downstream task.

Which implementation decision best addresses this requirement?

  1. Configure appropriate job failure notifications or alert destinations.
  2. Use supported secret management and identity-based access instead of embedding plaintext secrets in task definitions.
  3. Declare compatible task dependencies and runtime environment for the job compute.
  4. Read the job-run lifecycle status and task-level state instead of relying on an individual task's green indicator.

Explanation

Correct Answer

D:

A job run is not complete merely because one stage succeeded; remaining tasks determine overall status. The selected implementation is the one directly aligned with the constraints in the scenario.

Incorrect Answers

A:

Automated notifications reduce detection latency relative to periodic manual inspection.

B:

Job configuration should not expose sensitive credentials in broadly readable parameter values.

C:

Production job environments must include all libraries rather than inheriting accidental state from a developer cluster.

Question 340

An operations engineer wants to distinguish a workflow marked SUCCESS from one that still has a RUNNING downstream task.

Which acceptance result most directly demonstrates that the intended solution works?

  1. A controlled failed run sends a notification to the configured response channel.
  2. The full run reaches a successful terminal state only after all required tasks complete.
  3. The job authenticates successfully while routine users cannot inspect the credential value.
  4. The clean job run resolves its dependencies without requiring an interactive cluster setup.

Explanation

Correct Answer

B:

A job run is not complete merely because one stage succeeded; remaining tasks determine overall status.

Incorrect Answers

A:

A controlled failed run sends a notification to the configured response channel. That finding does not establish that the full run reaches a successful terminal state only after all required tasks complete.

C:

The job authenticates successfully while routine users cannot inspect the credential value. That finding does not establish that the full run reaches a successful terminal state only after all required tasks complete.

D:

The clean job run resolves its dependencies without requiring an interactive cluster setup. That finding does not establish that the full run reaches a successful terminal state only after all required tasks complete.

Certified Data Engineer Associate Practice Tests

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