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Certified Data Engineer Associate Practice Test 40

Question 390

A branch task has been added, but both the success and failure publication paths still execute because their dependency conditions were not set correctly.

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

  1. The run graph shows bronze completed before silver starts and silver is skipped when bronze fails.
  2. A simulated one-time timeout is retried and the task completes within the configured retry limit.
  3. A failing condition runs only the rejection path while a passing condition enables publication.
  4. Run outputs show region-specific results while source code remains one reusable asset.

Explanation

Correct Answer

C:

Conditional DAG edges must encode the branch decision; merely adding a task does not restrict both paths.

Incorrect Answers

A:

The run graph shows bronze completed before silver starts and silver is skipped when bronze fails. That finding does not establish that a failing condition runs only the rejection path while a passing condition enables publication.

B:

A simulated one-time timeout is retried and the task completes within the configured retry limit. That finding does not establish that a failing condition runs only the rejection path while a passing condition enables publication.

D:

Run outputs show region-specific results while source code remains one reusable asset. That finding does not establish that a failing condition runs only the rejection path while a passing condition enables publication.

Question 391

A team manually creates the same Lakeflow Job in development and production and repeatedly forgets a task dependency during migration.

Which implementation decision best addresses this requirement?

  1. Use Databricks Connect with compatible IDE tooling and remote compute access.
  2. Define the job as a resource in a Declarative Automation Bundle and deploy it through version-controlled configuration.
  3. Push the committed branch changes to the connected remote repository before CI executes.
  4. Define explicit targets and workspace host overrides for the environments in the bundle configuration.

Explanation

Correct Answer

B:

A bundle expresses Databricks resources as code, enabling repeatable promotion instead of manual UI recreation. The selected implementation is the one directly aligned with the constraints in the scenario.

Incorrect Answers

A:

Databricks Connect supports interactive local development while Spark API operations execute on Databricks compute.

C:

Local commits do not become available to remote build agents until the branch is pushed.

D:

Target-specific configuration allows the same codebase to deploy to different workspaces safely.

Question 392

A team manually creates the same Lakeflow Job in development and production and repeatedly forgets a task dependency during migration.

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

  1. The developer runs a local debug session whose Spark transformations execute on the approved remote compute.
  2. The remote branch contains the expected commit and the CI runner checks out the new files.
  3. The production target deploys to its approved host and does not modify development assets.
  4. Both workspaces contain the intended job DAG from the same reviewed source definition.

Explanation

Correct Answer

D:

A bundle expresses Databricks resources as code, enabling repeatable promotion instead of manual UI recreation.

Incorrect Answers

A:

The developer runs a local debug session whose Spark transformations execute on the approved remote compute. That finding does not establish that both workspaces contain the intended job DAG from the same reviewed source definition.

B:

The remote branch contains the expected commit and the CI runner checks out the new files. That finding does not establish that both workspaces contain the intended job DAG from the same reviewed source definition.

C:

The production target deploys to its approved host and does not modify development assets. That finding does not establish that both workspaces contain the intended job DAG from the same reviewed source definition.

Question 393

An engineer changes notebooks locally and wants to test Spark DataFrame code against Databricks compute from an IDE before opening a pull request.

Which implementation decision best addresses this requirement?

  1. Use Databricks Git integration or a supported Git workflow with feature branches and pull requests.
  2. Create and switch to a feature branch in the Databricks Git folder before editing.
  3. Use Databricks Connect with compatible IDE tooling and remote compute access.
  4. Use bundle variables and target-specific overrides for environment-dependent values.

Explanation

Correct Answer

C:

Databricks Connect supports interactive local development while Spark API operations execute on Databricks compute. The selected implementation is the one directly aligned with the constraints in the scenario.

Incorrect Answers

A:

Branch-based review separates experimental code from the protected production deployment history.

B:

Feature branches isolate work-in-progress revisions from the main release line.

D:

Environment variables keep source code common while allowing controlled resource and configuration differences.

Question 394

An engineer changes notebooks locally and wants to test Spark DataFrame code against Databricks compute from an IDE before opening a pull request.

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

  1. The developer runs a local debug session whose Spark transformations execute on the approved remote compute.
  2. A feature branch is reviewed and merged before the release pipeline deploys the code.
  3. The main branch retains its original notebook content until the reviewed change is merged.
  4. Staging writes to staging resources while production writes to its independently governed targets.

Explanation

Correct Answer

A:

Databricks Connect supports interactive local development while Spark API operations execute on Databricks compute.

Incorrect Answers

B:

A feature branch is reviewed and merged before the release pipeline deploys the code. That finding does not establish that the developer runs a local debug session whose Spark transformations execute on the approved remote compute.

C:

The main branch retains its original notebook content until the reviewed change is merged. That finding does not establish that the developer runs a local debug session whose Spark transformations execute on the approved remote compute.

D:

Staging writes to staging resources while production writes to its independently governed targets. That finding does not establish that the developer runs a local debug session whose Spark transformations execute on the approved remote compute.

Question 395

A data engineering repository needs a formal code review before changes enter the production deployment branch.

Which implementation decision best addresses this requirement?

  1. Push the committed branch changes to the connected remote repository before CI executes.
  2. Synchronize or pull the latest intended branch commit before packaging and deploying.
  3. Use Databricks Git integration or a supported Git workflow with feature branches and pull requests.
  4. Run databricks bundle validate for the relevant target.

Explanation

Correct Answer

C:

Branch-based review separates experimental code from the protected production deployment history. The selected implementation is the one directly aligned with the constraints in the scenario.

Incorrect Answers

A:

Local commits do not become available to remote build agents until the branch is pushed.

B:

A workspace Git folder must reflect the remote revision intended for release.

D:

Bundle validation checks configuration resolution and catches many definition issues before deployment.

Question 396

A data engineering repository needs a formal code review before changes enter the production deployment branch.

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

  1. The remote branch contains the expected commit and the CI runner checks out the new files.
  2. A feature branch is reviewed and merged before the release pipeline deploys the code.
  3. The deployed notebook commit matches the approved remote main-branch revision.
  4. An invalid resource reference causes validation to report an error without creating the target job.

Explanation

Correct Answer

B:

Branch-based review separates experimental code from the protected production deployment history.

Incorrect Answers

A:

The remote branch contains the expected commit and the CI runner checks out the new files. That finding does not establish that a feature branch is reviewed and merged before the release pipeline deploys the code.

C:

The deployed notebook commit matches the approved remote main-branch revision. That finding does not establish that a feature branch is reviewed and merged before the release pipeline deploys the code.

D:

An invalid resource reference causes validation to report an error without creating the target job. That finding does not establish that a feature branch is reviewed and merged before the release pipeline deploys the code.

Question 397

A developer commits notebooks in a Databricks Git folder but forgets to push, and the CI runner cannot see the changes.

Which implementation decision best addresses this requirement?

  1. Create and switch to a feature branch in the Databricks Git folder before editing.
  2. Define explicit targets and workspace host overrides for the environments in the bundle configuration.
  3. Execute databricks bundle deploy for the intended target after validation.
  4. Push the committed branch changes to the connected remote repository before CI executes.

Explanation

Correct Answer

D:

Local commits do not become available to remote build agents until the branch is pushed. The selected implementation is the one directly aligned with the constraints in the scenario.

Incorrect Answers

A:

Feature branches isolate work-in-progress revisions from the main release line.

B:

Target-specific configuration allows the same codebase to deploy to different workspaces safely.

C:

Validation and deployment are different operations; deploy creates or updates configured Databricks resources.

Question 398

A developer commits notebooks in a Databricks Git folder but forgets to push, and the CI runner cannot see the changes.

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

  1. The main branch retains its original notebook content until the reviewed change is merged.
  2. The remote branch contains the expected commit and the CI runner checks out the new files.
  3. The production target deploys to its approved host and does not modify development assets.
  4. The configured job resource appears in the target workspace after successful deployment.

Explanation

Correct Answer

B:

Local commits do not become available to remote build agents until the branch is pushed.

Incorrect Answers

A:

The main branch retains its original notebook content until the reviewed change is merged. That finding does not establish that the remote branch contains the expected commit and the CI runner checks out the new files.

C:

The production target deploys to its approved host and does not modify development assets. That finding does not establish that the remote branch contains the expected commit and the CI runner checks out the new files.

D:

The configured job resource appears in the target workspace after successful deployment. That finding does not establish that the remote branch contains the expected commit and the CI runner checks out the new files.

Question 399

A team wants to test an experimental ETL change without modifying the shared main branch used by production.

Which implementation decision best addresses this requirement?

  1. Create and switch to a feature branch in the Databricks Git folder before editing.
  2. Synchronize or pull the latest intended branch commit before packaging and deploying.
  3. Use bundle variables and target-specific overrides for environment-dependent values.
  4. Run databricks bundle run with the target and declared job resource identifier.

Explanation

Correct Answer

A:

Feature branches isolate work-in-progress revisions from the main release line. The selected implementation is the one directly aligned with the constraints in the scenario.

Incorrect Answers

B:

A workspace Git folder must reflect the remote revision intended for release.

C:

Environment variables keep source code common while allowing controlled resource and configuration differences.

D:

The bundle CLI can execute a deployed resource by its logical bundle configuration name.

Question 400

A team wants to test an experimental ETL change without modifying the shared main branch used by production.

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

  1. The deployed notebook commit matches the approved remote main-branch revision.
  2. Staging writes to staging resources while production writes to its independently governed targets.
  3. The main branch retains its original notebook content until the reviewed change is merged.
  4. A new job run appears for the intended deployed resource and target environment.

Explanation

Correct Answer

C:

Feature branches isolate work-in-progress revisions from the main release line.

Incorrect Answers

A:

The deployed notebook commit matches the approved remote main-branch revision. That finding does not establish that the main branch retains its original notebook content until the reviewed change is merged.

B:

Staging writes to staging resources while production writes to its independently governed targets. That finding does not establish that the main branch retains its original notebook content until the reviewed change is merged.

D:

A new job run appears for the intended deployed resource and target environment. That finding does not establish that the main branch retains its original notebook content until the reviewed change is merged.

Certified Data Engineer Associate Practice Tests

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