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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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Microsoft DP-700 Practice Test 8

Question 70

An airport analytics group manages a Fabric Data Factory pipeline with hundreds of source files. An orchestration repeats the same expensive lookup for every file. Which solution is the most defensible for this case?

  1. Tune supported copy parallelism based on source limits and capacity metrics
  2. Introduce a verified completion or validation barrier before refresh
  3. Cache or compute a stable lookup once per batch and pass the result to activities
  4. Set every Copy activity to unlimited parallelism without measuring source constraints

Explanation

Correct Answer

C:

Repeated invariant work can inflate pipeline duration unnecessarily.

Incorrect Answers

A:

Option Tune supported copy parallelism based on source limits and capacity metrics would focus on the separate issue that a Copy activity transfers files sequentially and misses the operational freshness target because parallel transfer can improve throughput only when endpoints and capacity can support it, not the current requirement that an orchestration repeats the same expensive lookup for every file; the appropriate remedy is Cache or compute a stable lookup once per batch and pass the result to activities.

B:

The option Introduce a verified completion or validation barrier before refresh applies to the separate issue that a downstream model refresh begins before all required files have loaded, because starting downstream tasks early may lower measured latency but publish incomplete data; the current condition is an orchestration repeats the same expensive lookup for every file, which calls for Cache or compute a stable lookup once per batch and pass the result to activities.

D:

Applying Set every Copy activity to unlimited parallelism without measuring source constraints when an orchestration repeats the same expensive lookup for every file would introduce a defect because unbounded concurrency can trigger throttling and greater contention; a direct solution is Cache or compute a stable lookup once per batch and pass the result to activities.

Question 71

An airline operates both scheduled warehouse loads and experimental lakehouse notebooks in a Fabric capacity. Analysts cannot identify which environment supplied a notebook's Python package. Which troubleshooting or configuration step is most appropriate?

  1. Inspect the notebook's attached environment and its published dependency version
  2. Test the new runtime in a separate workspace and validate representative totals before promoting it
  3. Disable the capacity workload monitoring reports so the team's Spark jobs can run faster
  4. Set a documented job-level Spark configuration rather than modifying every workspace's default

Explanation

Correct Answer

A:

Notebook behavior depends on the assigned environment, not only the source code visible in a cell.

Incorrect Answers

B:

Test the new runtime in a separate workspace and validate representative totals before promoting it is useful when runtime changes must not silently alter the behavior of month-end financial aggregations, since regression comparison on controlled input is stronger evidence than relying on a successful session start; however, the actual requirement is analysts cannot identify which environment supplied a notebook's Python package, which calls for Inspect the notebook's attached environment and its published dependency version.

C:

Applying Disable the capacity workload monitoring reports so the team's Spark jobs can run faster when analysts cannot identify which environment supplied a notebook's Python package would introduce a defect because removing observability does not increase available processing resources; a direct solution is Inspect the notebook's attached environment and its published dependency version.

D:

For a Spark job needs a specific configuration only for its isolated execution, Set a documented job-level Spark configuration rather than modifying every workspace's default can be justified because a per-job override limits the effect of special settings to the task that requires them; for this scenario involving analysts cannot identify which environment supplied a notebook's Python package, the targeted response is Inspect the notebook's attached environment and its published dependency version.

Question 72

A financial institution versions T-SQL warehouse objects using database projects. The release must verify views and stored procedure definitions in test before production. Which design decision most directly meets the requirement?

  1. Deploy and test the database project in a nonproduction stage before promotion
  2. Preserve versioned project artifacts and a tested forward/rollback migration plan
  3. Apply a destructive schema change directly to production and assume Git revert restores deleted data
  4. Use a Fabric-compatible database project with reviewed SQL objects and a controlled deployment artifact

Explanation

Correct Answer

A:

Preproduction validation detects SQL object and permission regressions before affecting business consumers.

Incorrect Answers

B:

The action Preserve versioned project artifacts and a tested forward/rollback migration plan solves a rollback plan must restore a known-good database schema revision because a source commit alone may not reverse data-destructive schema changes without explicit recovery design; it does not by itself solve the release must verify views and stored procedure definitions in test before production, whereas Deploy and test the database project in a nonproduction stage before promotion does.

C:

The option Apply a destructive schema change directly to production and assume Git revert restores deleted data fails to meet the release must verify views and stored procedure definitions in test before production, given that schema code rollback does not automatically restore dropped table contents; Deploy and test the database project in a nonproduction stage before promotion is the correct scope of action.

D:

Although Use a Fabric-compatible database project with reviewed SQL objects and a controlled deployment artifact fits the separate issue that engineers need repeatable schema deployment rather than manually copying table definitions because database projects track schema as code and support testing differences between source and target, this case concerns the release must verify views and stored procedure definitions in test before production and should be resolved with Deploy and test the database project in a nonproduction stage before promotion.

Question 73

A banking data platform processes payment events from regulated and nonregulated business divisions. The bank needs audit proof that sensitive payment data was accessed through a shortcut. What should the data engineer change first?

  1. Correlate producer and consumer identities, shortcut configuration and supported audit records
  2. Grant a read-only user full workspace Admin just to enable one folder write
  3. Inspect delegated versus user identity access and validate the applicable RLS controls
  4. Evaluate supported OneLake folder-scoped ReadWrite for an eligible low-privilege principal

Explanation

Correct Answer

A:

A logical shortcut access can traverse two authorization scopes and requires end-to-end evidence.

Incorrect Answers

B:

The option Grant a read-only user full workspace Admin just to enable one folder write fails to meet the bank needs audit proof that sensitive payment data was accessed through a shortcut, given that broad workspace administration is not necessary for a narrowly scoped write requirement; Correlate producer and consumer identities, shortcut configuration and supported audit records is the correct scope of action.

C:

Although Inspect delegated versus user identity access and validate the applicable RLS controls fits the separate issue that a warehouse query executes under an owner identity rather than the caller's identity because query identity is a material input to whether a data-level policy protects the end user, this case concerns the bank needs audit proof that sensitive payment data was accessed through a shortcut and should be resolved with Correlate producer and consumer identities, shortcut configuration and supported audit records.

D:

Option Evaluate supported OneLake folder-scoped ReadWrite for an eligible low-privilege principal would focus on the separate issue that an engineer needs write access to one staged folder but not the rest of the lakehouse because scoped OneLake write grants can avoid broad Contributor access to the entire workspace, not the current requirement that the bank needs audit proof that sensitive payment data was accessed through a shortcut; the appropriate remedy is Correlate producer and consumer identities, shortcut configuration and supported audit records.

Question 74

A payment processor handles large overnight Fabric loads with strict time and error budgets. A slow connector repeatedly times out and the system creates duplicate destination rows. Which action best addresses the observed Fabric behavior?

  1. Use a reviewed conditional expression driven by a run parameter
  2. Preserve canceled and incomplete states in run monitoring and alert rules
  3. Configure bounded retries together with idempotent destination writes
  4. Convert all failure statuses to success to improve the service-level dashboard

Explanation

Correct Answer

C:

Retry counts alone cannot protect data integrity when a partial copy committed rows.

Incorrect Answers

A:

For a pipeline needs to skip a nonessential enrichment on a declared maintenance day, Use a reviewed conditional expression driven by a run parameter can be justified because controlled conditional execution is safer than editing pipeline definitions during operations; for this scenario involving a slow connector repeatedly times out and the system creates duplicate destination rows, the targeted response is Configure bounded retries together with idempotent destination writes.

B:

Although Preserve canceled and incomplete states in run monitoring and alert rules fits the separate issue that an upstream job is canceled midway and should not be counted as successful because incomplete processing should not satisfy the data publication gate, this case concerns a slow connector repeatedly times out and the system creates duplicate destination rows and should be resolved with Configure bounded retries together with idempotent destination writes.

D:

Choosing Convert all failure statuses to success to improve the service-level dashboard would not satisfy the case condition (a slow connector repeatedly times out and the system creates duplicate destination rows), because falsified run states conceal operational risk and incomplete data; Configure bounded retries together with idempotent destination writes preserves the intended result.

Question 75

A bank processes account status changes using a source that exposes database log CDC. An initial snapshot must not race with the live CDC feed. How should the team implement this requirement?

  1. Ignore delete operations because they use less storage than inserts
  2. Enforce event-position idempotency in the target application step
  3. Configure a supported CDC-based incremental ingestion path with operation types
  4. Establish a consistent snapshot and change-position handoff

Explanation

Correct Answer

D:

The initial-state and change-stream boundaries must overlap without gaps or double application.

Incorrect Answers

A:

Ignore delete operations because they use less storage than inserts would not satisfy an initial snapshot must not race with the live CDC feed because missing tombstones can leave closed or removed accounts incorrectly active; the defensible response is Establish a consistent snapshot and change-position handoff.

B:

Option Enforce event-position idempotency in the target application step would focus on the separate issue that cDC events can arrive twice after connector failover because duplicate commit positions should not apply the same source mutation twice, not the current requirement that an initial snapshot must not race with the live CDC feed; the appropriate remedy is Establish a consistent snapshot and change-position handoff.

C:

The option Configure a supported CDC-based incremental ingestion path with operation types applies to the separate issue that the target must capture inserts, updates and deletes without a full daily scan, because change events preserve the mutation type that a simple append or static snapshot loses; the current condition is an initial snapshot must not race with the live CDC feed, which calls for Establish a consistent snapshot and change-position handoff.

Question 76

An insurer has a team of Power Query authors and Spark developers maintaining related preparation flows. A curated Warehouse table needs a set-based SQL aggregate. Which solution is the most defensible for this case?

  1. Rewrite every Power Query step as a Python UDF solely because the capacity has Spark enabled
  2. Use an appropriate T-SQL statement in the Fabric Warehouse
  3. Use Dataflow Gen2 with Power Query transformations and an approved data destination
  4. Use KQL aggregation and event-time operators over the KQL database

Explanation

Correct Answer

B:

SQL grouping and joins are natural for relational warehouse transformations.

Incorrect Answers

A:

For this requirement of a curated Warehouse table needs a set-based SQL aggregate, Rewrite every Power Query step as a Python UDF solely because the capacity has Spark enabled would be unsafe or ineffective because increasing implementation complexity is not itself an optimization; apply Use an appropriate T-SQL statement in the Fabric Warehouse instead.

C:

Use Dataflow Gen2 with Power Query transformations and an approved data destination is useful when a standard data cleansing workflow should be editable visually by business analysts, since visual query steps are suitable for repeatable supported data shaping tasks; however, the actual requirement is a curated Warehouse table needs a set-based SQL aggregate, which calls for Use an appropriate T-SQL statement in the Fabric Warehouse.

D:

The action Use KQL aggregation and event-time operators over the KQL database solves operations wants to apply time-series analysis to telemetry stored in an Eventhouse because kQL is optimized for querying and transforming event-oriented analytical data; it does not by itself solve a curated Warehouse table needs a set-based SQL aggregate, whereas Use an appropriate T-SQL statement in the Fabric Warehouse does.

Question 77

A payment gateway streams transaction-authorization events to Eventhouse for fraud monitoring. A dashboard must show declined transactions by merchant over a rolling period. Which troubleshooting or configuration step is most appropriate?

  1. Deduplicate according to transaction ID and authoritative revision before counting outcomes
  2. Join normalized terminal IDs to the authorized reference set
  3. Use KQL time filtering and grouped aggregation on the merchant and status
  4. Delete all declined events from the source to improve the approval rate shown to management

Explanation

Correct Answer

C:

The event query should combine status predicates with a defined time window and business key.

Incorrect Answers

A:

The option Deduplicate according to transaction ID and authoritative revision before counting outcomes applies to the separate issue that a duplicate delivery has the same transaction ID and source revision, because delivery retries are not new authorizations and would inflate declined counts; the current condition is a dashboard must show declined transactions by merchant over a rolling period, which calls for Use KQL time filtering and grouped aggregation on the merchant and status.

B:

Join normalized terminal IDs to the authorized reference set is useful when fraud signals must be matched with a known list of high-risk terminals, since a key-based join enriches event observations without relying on display-name matching; however, the actual requirement is a dashboard must show declined transactions by merchant over a rolling period, which calls for Use KQL time filtering and grouped aggregation on the merchant and status.

D:

Delete all declined events from the source to improve the approval rate shown to management would not satisfy a dashboard must show declined transactions by merchant over a rolling period because removing actual business outcomes falsifies the analytical record; the defensible response is Use KQL time filtering and grouped aggregation on the merchant and status.

Question 78

An online marketplace uses pipelines to ingest partner datasets with different contractual SLAs. One provider produces half the expected records but the pipeline reports success. Which design decision most directly meets the requirement?

  1. Examine schedule and event trigger definitions plus duplicate run identifiers
  2. Configure provider-specific completion and failure alerts based on source SLA
  3. Compare observed source count, copied count and destination business-key reconciliation
  4. Infer a source file exists just because a schedule was configured

Explanation

Correct Answer

C:

Activity success is not proof of meeting a complete data contract.

Incorrect Answers

A:

Examine schedule and event trigger definitions plus duplicate run identifiers is useful when a scheduled load runs twice after a configuration change, since multiple active triggers can cause repeated business processing; however, the actual requirement is one provider produces half the expected records but the pipeline reports success, which calls for Compare observed source count, copied count and destination business-key reconciliation.

B:

The action Configure provider-specific completion and failure alerts based on source SLA solves an incomplete ingestion must page the responsible provider team because operational notification should identify the affected supplier rather than a generic workspace alert; it does not by itself solve one provider produces half the expected records but the pipeline reports success, whereas Compare observed source count, copied count and destination business-key reconciliation does.

D:

For this requirement of one provider produces half the expected records but the pipeline reports success, Infer a source file exists just because a schedule was configured would be unsafe or ineffective because a trigger does not create a missing input file; apply Compare observed source count, copied count and destination business-key reconciliation instead.

Question 79

A fintech startup receives streaming transactions into Fabric Eventhouse and retains raw Delta copies. The source stream contains malformed records that fail the destination mapping. What should the data engineer change first?

  1. Review OneLake shortcut and target identity permissions
  2. Publish the secured historical Delta source to an anonymous endpoint to increase query speed
  3. Inspect ingestion failures and correct schema parsing for the rejected payloads
  4. Deduplicate by stable transaction event ID and source revision

Explanation

Correct Answer

C:

Eventhouse throughput alone does not prove the malformed events were accepted.

Incorrect Answers

A:

The action Review OneLake shortcut and target identity permissions solves a restricted analyst can query native events but not the source Delta shortcut because native KQL access and external OneLake data authorization are separate paths; it does not by itself solve the source stream contains malformed records that fail the destination mapping, whereas Inspect ingestion failures and correct schema parsing for the rejected payloads does.

B:

Publish the secured historical Delta source to an anonymous endpoint to increase query speed would not satisfy the source stream contains malformed records that fail the destination mapping because public sharing does not repair the query plan and violates the data-protection intent; the defensible response is Inspect ingestion failures and correct schema parsing for the rejected payloads.

D:

Option Deduplicate by stable transaction event ID and source revision would focus on the separate issue that the event query shows unexpected duplicate transactions after replay because replay and delivery semantics can create repeated records if business identity is not enforced, not the current requirement that the source stream contains malformed records that fail the destination mapping; the appropriate remedy is Inspect ingestion failures and correct schema parsing for the rejected payloads.

Question 80

A utility company's Spark job reads a partitioned Delta table spanning several years. Repeated small streaming writes create excessive metadata overhead. Which action best addresses the observed Fabric behavior?

  1. Use supported optimized writes or periodic OPTIMIZE based on workload metrics
  2. Evaluate time-travel, streaming and recovery dependencies before choosing retention
  3. Treat VACUUM as a replacement for computing accurate table statistics
  4. Check date predicate form and physical partition pruning in the query plan

Explanation

Correct Answer

A:

Write batching and file compaction reduce per-file management cost.

Incorrect Answers

B:

Although Evaluate time-travel, streaming and recovery dependencies before choosing retention fits the separate issue that operations wants to run VACUUM daily with an unusually short retention because old unreferenced files may still be required for approved rollback or delayed readers, this case concerns repeated small streaming writes create excessive metadata overhead and should be resolved with Use supported optimized writes or periodic OPTIMIZE based on workload metrics.

C:

Choosing Treat VACUUM as a replacement for computing accurate table statistics would not satisfy the case condition (repeated small streaming writes create excessive metadata overhead), because vACUUM removes obsolete files; statistics and compaction serve different optimization goals; Use supported optimized writes or periodic OPTIMIZE based on workload metrics preserves the intended result.

D:

The option Check date predicate form and physical partition pruning in the query plan applies to the separate issue that most queries filter on a date but Spark still scans unrelated year partitions, because predicates aligned to partition columns can avoid reading irrelevant partitions; the current condition is repeated small streaming writes create excessive metadata overhead, which calls for Use supported optimized writes or periodic OPTIMIZE based on workload metrics.

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