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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 46

Question 450

A Spark notebook is intermittently terminating during a nightly run and operators need executor-level clues. Which postchange result provides the strongest validation of success?

  1. The failing run exposes a differing effective parameter or connection condition.
  2. The failing stack trace or executor event is present and correlates to the run ID.
  3. A controlled threshold-crossing event produces the intended notification.
  4. The slow stage appears with disproportionately high execution duration.

Explanation

Correct Answer

B:

Correlated logs support root-cause analysis. This observation directly tests the expected outcome.

Incorrect Answers

A:

Controlled comparison identifies a reproducible discrepancy.

C:

An injected threshold case validates the alert.

D:

Granular timing identifies the actual hot spot.

Question 451

A date-filtered Spark job still opens every partition on a partitioned Delta table. Which postchange result provides the strongest validation of success?

  1. Physical plan uses broadcast and shuffle bytes decrease.
  2. The plan distributes execution and preserves results.
  3. Filtered scans read fewer irrelevant files.
  4. The execution plan scans only relevant date partitions.

Explanation

Correct Answer

D:

Pruned partitions verify effectiveness. This observation directly tests the expected outcome.

Incorrect Answers

A:

Plan and bytes verify the mechanism.

B:

Plan evidence and correctness establish suitability.

C:

Plan and scan metrics show benefit.

Question 452

Streaming source messages can arrive out of order, and a five-minute event-time aggregation must tolerate a bounded lateness window. Which observation most directly verifies the intended outcome after the appropriate action?

  1. An intentionally delayed event within the allowed window enters its correct event-time aggregate.
  2. A delayed order appears in its original sales date, not the ingestion day.
  3. Current lookup returns one customer while time-travel queries return the correct older states.
  4. Replayed identical event IDs do not increase the distinct stored-event count.

Explanation

Correct Answer

A:

Delayed-event testing verifies temporal correctness. This observation directly tests the expected outcome.

Incorrect Answers

B:

Event-date placement validates business-time semantics.

C:

Both use cases demonstrate intentional modeling rather than accidental duplication.

D:

A deliberate duplicate replay tests exactly-once business effect.

Question 453

Region and transaction date are the most selective repeated filters on a Delta fact. What should the engineer check to confirm that the intended behavior was achieved?

  1. The execution plan scans only relevant date partitions.
  2. Filtered scans read fewer irrelevant files.
  3. The plan joins fewer fact rows while results match.
  4. Physical copies decrease and consumers still read current data.

Explanation

Correct Answer

B:

Plan and scan metrics show benefit. This observation directly tests the expected outcome.

Incorrect Answers

A:

Pruned partitions verify effectiveness. That observation may be useful elsewhere, but it does not directly confirm the expected evidence in the case: Filtered scans read fewer irrelevant files.

C:

Rows and output parity confirm optimization.

D:

Storage plus parity validate simplification.

Question 454

Compliance investigators must determine which identities performed auditable activities in a Fabric workspace over a date range. Which observation most directly verifies the intended outcome after the appropriate action?

  1. The contractor can open the shared warehouse but not unrelated workspace items.
  2. The engineer can save pipeline changes but cannot add workspace members.
  3. The Viewer uploads a file to the allowed folder but cannot write elsewhere.
  4. Audit events include the targeted actor, activity, resource, and timestamp.

Explanation

Correct Answer

D:

Actor and action fields establish traceability rather than relying on pipeline success. This observation directly tests the expected outcome.

Incorrect Answers

A:

Testing both the permitted and unrelated item exposes accidental broad grants.

B:

Successful editing with denied membership administration proves the intended role boundary.

C:

Testing both folder paths verifies the scope of delegated writes.

Question 455

Consider this Microsoft Fabric case: A customer dimension must retain a history of a region assignment that changed last month. What measured result demonstrates that the requirement is satisfied?

  1. Queries for dates before and after the change resolve to different dimension versions.
  2. Transactions from both systems resolve to one approved dimension identity.
  3. A deleted source key disappears from the active target after the change batch.
  4. A modified existing customer changes one target row without creating a duplicate customer.

Explanation

Correct Answer

A:

Point-in-time joins verify that history was preserved. This observation directly tests the expected outcome.

Incorrect Answers

B:

Cross-source key convergence verifies the master mapping.

C:

The absence of a deleted key verifies CDC semantics.

D:

Matched row identity and updated values prove correct upsert behavior.

Question 456

Consider this Microsoft Fabric case: A Copy activity rejects one JSON numeric field because the sink expects an integer but the source includes decimal fractions. What measured result demonstrates that the requirement is satisfied?

  1. A fractional test value survives ingestion with expected precision.
  2. Previously rejected fixture rows land with valid target types and values.
  3. A known event lands with its expected timestamp and other fields.
  4. A bad-value fixture is isolated and valid rows refresh correctly.

Explanation

Correct Answer

A:

Numeric equality validates correction. This observation directly tests the expected outcome.

Incorrect Answers

B:

Row-level type checks confirm mapping alignment.

C:

Field-level inspection confirms mapping repair.

D:

Controlled rejection validates transformation resilience.

Question 457

A Dataflow Gen2 query step errors after source rows include nonnumeric text in a previously numeric field. Which postchange result provides the strongest validation of success?

  1. A bad-value fixture is isolated and valid rows refresh correctly.
  2. Previously rejected fixture rows land with valid target types and values.
  3. The dataflow source preview and refresh both authenticate successfully.
  4. A fractional test value survives ingestion with expected precision.

Explanation

Correct Answer

A:

Controlled rejection validates transformation resilience. This observation directly tests the expected outcome.

Incorrect Answers

B:

Row-level type checks confirm mapping alignment.

C:

Source access and completed refresh validate the fix.

D:

Numeric equality validates correction. That observation may be useful elsewhere, but it does not directly confirm the expected evidence in the case: A bad-value fixture is isolated and valid rows refresh correctly.

Question 458

A Spark Structured Streaming job must survive notebook process failure without rereading the entire source indefinitely. Which observation most directly verifies the intended outcome after the appropriate action?

  1. A five-minute-late sample is included while an event beyond the policy follows the documented late-data rule.
  2. An intentionally replayed event ID does not increase the curated distinct event count.
  3. A restarted query resumes from persisted progress and avoids unintended duplicate output.
  4. Malformed fixtures appear in the failure path and valid events reach the main sink.

Explanation

Correct Answer

C:

Restart behavior validates durable checkpoints. This observation directly tests the expected outcome.

Incorrect Answers

A:

Boundary tests validate lateness treatment.

B:

Controlled duplicate injection validates deduplication.

D:

Conservation across paths validates resilience.

Question 459

Consider this Microsoft Fabric case: A processing pipeline must use an environment-specific database connection without rebuilding definitions for development and production. What measured result demonstrates that the requirement is satisfied?

  1. The initial and existing-file test runs execute different branches as designed.
  2. The notebook starts after dataflow completion according to activity timestamps.
  3. Each environment's run uses its assigned destination without changing the pipeline definition.
  4. A matching file creation causes one relevant pipeline run, while nonmatching files do not.

Explanation

Correct Answer

C:

Effective endpoint evidence confirms safe promotion and parameter binding. This observation directly tests the expected outcome.

Incorrect Answers

A:

Observed branch selection proves the condition is evaluated correctly.

B:

Timestamp ordering validates the expected handoff.

D:

Matched and filtered-out test events validate the trigger predicate.

Question 460

A pipeline Copy activity returns HTTP 401 immediately after a source credential rotation. Which observation most directly verifies the intended outcome after the appropriate action?

  1. Run inputs show the intended resolved path and the source file is found.
  2. A rerun authenticates and begins reading source rows with the approved identity.
  3. Previously rejected fixture rows land with valid target types and values.
  4. A rerun succeeds with least-privilege permissions and no repeated 403s.

Explanation

Correct Answer

B:

Successful source access confirms credential repair. This observation directly tests the expected outcome.

Incorrect Answers

A:

Effective path plus file discovery validates the correction.

C:

Row-level type checks confirm mapping alignment.

D:

Permission and run evidence verify the root fix.