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Exam Code: DP-700

Exam Name Implementing Data Engineering Solutions Using Microsoft Fabric

Certification Provider: Microsoft

Corresponding Certification: Microsoft Certified: Fabric Data Engineer Associate

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Implementing Data Engineering Solutions Using Microsoft Fabric (DP-700) Practice Tests

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Microsoft DP-700 Practice Test 9

Question 80

A warehouse receives new credit-card columns, and policy requires visible results to hide all but a few identifying digits for support staff. Which engineering decision is most suitable for this specific situation?

  1. Apply column-level constraints in a read-only OneLake security role.
  2. Configure a partial mask tailored to the supported string column.
  3. Define an RLS predicate that evaluates the current user context.
  4. Use column-level access controls to deny the Salary column to analysts.

Explanation

Correct Answer

B:

Partial masking preserves selected characters while concealing the remainder of a string.

Incorrect Answers

A:

OneLake Read roles can constrain selected columns for the specified members.

C:

Identity-aware filtering maps each caller to authorized rows at query time.

D:

Column-level security restricts permission to access specific columns rather than merely displaying masked values.

Question 81

An engineer discovers a Git-connected workspace has local changes, and a newer remote commit should not be applied over them without review. Which engineering decision is most suitable for this specific situation?

  1. Commit the environment configuration and notebook changes together when both are supported.
  2. Commit or discard intentional local differences before applying the remote update.
  3. Deploy the notebook and supported dependent environment together to preserve auto-binding.
  4. Use a SQL database project containing the warehouse schema definitions.

Explanation

Correct Answer

B:

Resolving local divergence before Git update prevents accidental overwrite.

Incorrect Answers

A:

Co-versioning dependencies avoids deploying code without required runtime configuration.

C:

Notebook deployment can rebind attached environments and lakehouses when dependencies exist in the stage.

D:

Database projects capture deployable SQL object definitions in source control.

Question 82

An external OneLake shortcut begins failing after its storage access token expires. What should the engineer implement first to satisfy the stated need?

  1. Repair the dataflow connection and gateway credentials for the authorized data source.
  2. Renew the shortcut's external connection credentials without recreating its logical target.
  3. Renew the supported source connection authentication and confirm the stream is running.
  4. Refresh the source connection's authorized credentials and rerun the Copy activity.

Explanation

Correct Answer

B:

A shortcut depends on valid credentials to access external objects.

Incorrect Answers

A:

Credential failures in Power Query prevent refresh even when destination permissions are correct.

C:

Expired credentials break source ingestion before downstream transformations execute.

D:

Authentication failure occurs before data transfer when credentials are no longer valid.

Question 83

A Copy activity rejects one JSON numeric field because the sink expects an integer but the source includes decimal fractions. What should the engineer implement first to satisfy the stated need?

  1. Preserve the required precision by selecting an appropriate compatible sink numeric type.
  2. Attach and publish the environment containing the required compatible library.
  3. Correct the Copy mapping and type conversions for the affected columns.
  4. Correct the Eventhouse ingestion mapping to the intended timestamp column and type.

Explanation

Correct Answer

A:

Narrow integer types cannot represent decimal input without loss or failure.

Incorrect Answers

B:

Notebook sessions resolve available libraries from their effective environment.

C:

Data type mismatch occurs at mapping or insert even when connectivity succeeds.

D:

Ingestion mapping aligns payload paths with typed target fields.

Question 84

An Eventstream sends to multiple sinks but one route stops receiving events. Which action best addresses the requirement?

  1. Inspect Copy activity input/output metrics and reconcile source and sink counts.
  2. Inspect Eventhouse ingestion and database monitoring metrics.
  3. Add data-quality reconciliation metrics to the monitoring gate.
  4. Inspect Eventstream run metrics and destination-specific health.

Explanation

Correct Answer

D:

Stream-level monitoring can reveal throughput and routing failures.

Incorrect Answers

A:

Copy statistics reveal transfer counts and possible skipped or rejected rows.

B:

Ingestion monitoring distinguishes source outages from slow arrival or indexing.

C:

Transport success does not prove that transformed business totals are correct.

Question 85

In a Microsoft Fabric solution, a heavy data engineering notebook needs more executor memory than the workspace-wide pool configuration provides, without changing other teams' notebooks. Which configuration or implementation should the engineer choose?

  1. Set spark.highConcurrency.max to 20 in the attached environment's Spark properties.
  2. Configure executor sizing in a dedicated environment attached only to that notebook.
  3. Publish a Fabric environment with the common library and attach it to the notebooks.
  4. Attach a separate environment to the notebook while leaving its executor-memory settings identical to the insufficient workspace default.

Explanation

Correct Answer

B:

A workload-specific environment can override compute sizes when the workspace permits customization.

Incorrect Answers

A:

That property can raise the high-concurrency session's supported workload limit within the documented bounds.

C:

Environment items centrally define reusable libraries and Spark runtime settings.

D:

Merely separating the environment does not fix the documented memory shortage if its Spark executor allocation remains inadequate. The keyed option changes executor sizing in a dedicated environment.

Question 86

A pipeline Copy activity returns HTTP 401 immediately after a source credential rotation. What should the engineer implement first to satisfy the stated need?

  1. Inspect evaluated dynamic expressions and correct the runtime source path.
  2. Refresh the source connection's authorized credentials and rerun the Copy activity.
  3. Correct the Copy mapping and type conversions for the affected columns.
  4. Repair the dataflow connection and gateway credentials for the authorized data source.

Explanation

Correct Answer

B:

Authentication failure occurs before data transfer when credentials are no longer valid.

Incorrect Answers

A:

A wrong path can fail even when the connection itself is valid.

C:

Data type mismatch occurs at mapping or insert even when connectivity succeeds.

D:

Credential failures in Power Query prevent refresh even when destination permissions are correct.

Question 87

A business domain lead needs to delegate management of a Fabric domain without giving every owner global tenant administration. Which action best addresses the requirement?

  1. Assign the appropriate domain administrator role to the designated domain owner.
  2. Attach a separate dedicated environment to that notebook.
  3. Publish a Fabric environment with the common library and attach it to the notebooks.
  4. Set the experimental Spark property in that workload's published environment.

Explanation

Correct Answer

A:

Domain-level administration delegates governance within the domain's scope.

Incorrect Answers

B:

An item-level environment isolates runtime and libraries for a specific notebook.

C:

Environment items centrally define reusable libraries and Spark runtime settings.

D:

Environment-specific Spark properties can scope settings to an attached workload.

Question 88

In a Microsoft Fabric solution, a KQL telemetry query must compute elapsed seconds from start and end timestamps. Which configuration or implementation should the engineer choose?

  1. Land the events in an Eventhouse KQL database.
  2. Run the logic in a Fabric PySpark notebook.
  3. Use a PySpark left anti join on customer ID.
  4. Use KQL extend with a duration expression.

Explanation

Correct Answer

D:

Extend adds calculated fields to KQL results. The result addresses the requirement stated in this case.

Incorrect Answers

A:

Eventhouse supports high-throughput time-series ingestion and KQL.

B:

Notebooks support custom distributed transformations and environments.

C:

The anti join returns left rows with no right-side match.

Question 89

An analyst proposes attaching an update policy directly to a query-accelerated external Delta shortcut. Which action best addresses the requirement?

  1. Use a checkpoint and an idempotent sink write strategy with stable business identifiers.
  2. Ingest events into an Eventhouse native table instead of querying only an external shortcut.
  3. Enable supported query acceleration rather than replacing the shortcut with a scheduled full copy.
  4. Materialize required transformations into native KQL tables before applying update policies.

Explanation

Correct Answer

D:

Accelerated external shortcuts do not support native-table update policies or materialized views.

Incorrect Answers

A:

A checkpoint plus idempotent behavior reduces repeated business effects after failure.

B:

Native Eventhouse ingestion supports indexed real-time analytics over event records.

C:

Acceleration boosts eligible external Delta queries through managed caching.

Question 90

In a Microsoft Fabric solution, a support engineer can view a masked identifier but has no explicit permission to see unmasked PII values. Which configuration or implementation should the engineer choose?

  1. Remove excess workspace membership and grant limited access to the approved view.
  2. Use explicit grant-role scopes and omit unauthorized members; do not design unsupported Deny roles.
  3. Restrict sensitive column access with permissions rather than treating masking as a security boundary.
  4. Grant UNMASK only to an approved privileged principal when the business case requires it.

Explanation

Correct Answer

D:

The UNMASK permission governs access to unmasked results separately from general SELECT.

Incorrect Answers

A:

A specific SQL object grant limits reach more safely than a broad workspace authoring role.

B:

OneLake security supports Grant roles rather than a separate Deny role type.

C:

Dynamic data masking alone does not prevent inference attacks through predicates.