McAfee Secure

Exam Code: DP-800

Exam Name: Developing AI-Enabled Database Solutions

Certification Provider: Microsoft

Corresponding Certification: Microsoft Certified: SQL AI Developer Associate

Microsoft DP-800 Questions & Answers

Study with Up-To-Date REAL Exam Questions and Answers from the ACTUAL Test

101 Questions & Answers with Testing Engine

"Developing AI-Enabled Database Solutions Exam", also known as DP-800 exam, is a Microsoft certification exam.

Pass your tests with the always up-to-date DP-800 Exam Engine. Your DP-800 training materials keep you at the head of the pack!

Satisfaction Guaranteed

Money Back Guarantee

Testking provides hassle-free money back guarantee with our products. That is because we have 100% trust in the abilities of our professional and experience product team, and our record is a proof of that.

99.6% PASS RATE
Was: $137.49
Now: $124.99

Microsoft DP-800 Practice Test 28

Question 270

A pipeline deploys to production immediately after any branch push. Which implementation decision BEST addresses this requirement?

  1. Configure CODEOWNERS and required reviews for the finance database paths.
  2. Use protected branch triggers, environment approval gates and deployment-specific identities.
  3. Enforce protected branches and required pull-request approvals.
  4. Review deployment drift and data-loss warnings with explicit owner approval.

Explanation

Correct Answer

B:

Use protected branch triggers, environment approval gates and deployment-specific identities. This targets the primary issue because automated execution without authorization can promote unreviewed schema changes. Verification: Unapproved branch commits never reach production. Prevent recurrence: Audit pipeline changes and approval records.

Incorrect Answers

A:

Configuring CODEOWNERS and required reviews for the finance database paths would not correct a pipeline deploys to production immediately after any branch push. Use protected branch triggers, environment approval gates and deployment-specific identities.

C:

Branch policies are governance controls that prevent unreviewed deployment inputs.

D:

Schema reconciliation can propose destructive changes that threaten existing records.

Question 271

An AI completion recommends sending full customer rows to a third-party LLM for debugging. Which measurable outcome BEST verifies that the requirement is satisfied?

  1. Migration rehearsal retains required tables and supports rollback.
  2. A test session follows enterprise policy without exposing restricted repo content.
  3. Test prompts contain representative synthetic values, not real identifiers.
  4. Only the allowlisted server appears and controlled test queries succeed.

Explanation

Correct Answer

C:

Test prompts contain representative synthetic values, not real identifiers. This is the decisive observable evidence after implementing mask or synthesize sensitive data and confirm approved data-handling contracts. It tests the underlying requirement: Development convenience does not override privacy, residency or retention duties.

Incorrect Answers

A:

Migration rehearsal retains required tables and supports rollback. However, that result would not establish the required outcome: test prompts contain representative synthetic values, not real identifiers.

B:

A test session follows enterprise policy without exposing restricted repo content. However, that result would not establish the required outcome: test prompts contain representative synthetic values, not real identifiers.

D:

Only the allowlisted server appears and controlled test queries succeed. However, that result would not establish the required outcome: test prompts contain representative synthetic values, not real identifiers.

Question 272

A pull request contains table renames and a developer approves it using only line counts. Which technical reason BEST explains the proposed correction?

  1. Branch policies are governance controls that prevent unreviewed deployment inputs.
  2. Changing project source alone does not apply DDL to the deployed database.
  3. Automated execution without authorization can promote unreviewed schema changes.
  4. DDL diffs have operational consequences beyond text formatting.

Explanation

Correct Answer

D:

DDL diffs have operational consequences beyond text formatting. This explains why the corrective action is to review migration impact, data retention and dependent object behavior before approval. Confirm the diagnosis when a staging publish preserves expected historical data and references.

Incorrect Answers

A:

Branch policies are governance controls that prevent unreviewed deployment inputs. The actual technical constraint is that DDL diffs have operational consequences beyond text formatting.

B:

Changing project source alone does not apply DDL to the deployed database. The actual technical constraint is that DDL diffs have operational consequences beyond text formatting.

C:

Automated execution without authorization can promote unreviewed schema changes. The actual technical constraint is that DDL diffs have operational consequences beyond text formatting.

Question 273

A developer routes a confidential schema prompt through an unapproved external model selection. Which preventive practice BEST addresses the underlying risk over time?

  1. Maintain a controlled model catalog and audit changes.
  2. Review grants and server capabilities after updates.
  3. Use data-classification and DLP controls on AI-assisted development.
  4. Scan instruction files during pull-request review.

Explanation

Correct Answer

A:

Maintain a controlled model catalog and audit changes. This guards against recurrence because different model endpoints can have different data governance and retention arrangements. The direct remediation is: Select an organization-approved model and review data-routing settings before sending schema text.

Incorrect Answers

B:

Review grants and server capabilities after updates. The current task instead requires this action: maintain a controlled model catalog and audit changes.

C:

Use data-classification and DLP controls on AI-assisted development. The current task instead requires this action: maintain a controlled model catalog and audit changes.

D:

Scan instruction files during pull-request review. The current task instead requires this action: maintain a controlled model catalog and audit changes.

Question 274

Two writers use rowversion checks but ignore the affected-row count on UPDATE. What should the SQL developer do FIRST to address the specific issue?

  1. Use appropriate locking or optimistic concurrency validation to make stock decrement atomic.
  2. Require an expected rowversion predicate and verify rows affected before confirming success.
  3. Benchmark MAXDOP and cost threshold changes using actual plans and instance guidance.
  4. Evaluate tempdb file sizing and allocation configuration appropriate to SQL engine/version.

Explanation

Correct Answer

B:

Require an expected rowversion predicate and verify rows affected before confirming success. This targets the primary issue because optimistic concurrency only works if conflicts are detected, not silently overwritten. Verification: A stale client receives a conflict and cannot overwrite the newer row. Prevent recurrence: Use explicit retry or user merge flow on conflicts.

Incorrect Answers

A:

Using appropriate locking or optimistic concurrency validation to make stock decrement atomic would not correct two writers use rowversion checks but ignore the affected-row count on UPDATE. Require an expected rowversion predicate and verify rows affected before confirming success.

C:

Benchmark MAXDOP and cost threshold changes using actual plans and instance guidance. The relevant technical condition instead is that require an expected rowversion predicate and verify rows affected before confirming success.

D:

Tempdb contention can impede transient sorting, hashing and version-store activity.

Question 275

A customer API returns all 500,000 sales rows in one response and clients time out. Which acceptance check is MOST directly related to this scenario?

  1. After a stock change, clients see updated counts within the defined freshness SLA.
  2. A nested query returns only permitted order lines for the signed-in user.
  3. Page requests return stable bounded records without gaps.
  4. Integration tests pass separately for the selected REST and GraphQL operations.

Explanation

Correct Answer

C:

Page requests return stable bounded records without gaps. This is the decisive observable evidence after implementing configure controlled pagination, sorting and maximum page size for the DAB entity. It tests the underlying requirement: Unbounded result sets waste bandwidth and can overload SQL and API memory.

Incorrect Answers

A:

After a stock change, clients see updated counts within the defined freshness SLA. However, that result would not establish the required outcome: page requests return stable bounded records without gaps.

B:

A nested query returns only permitted order lines for the signed-in user. However, that result would not establish the required outcome: page requests return stable bounded records without gaps.

D:

Integration tests pass separately for the selected REST and GraphQL operations. However, that result would not establish the required outcome: page requests return stable bounded records without gaps.

Question 276

A developer swallows every SQL exception and returns success to upstream callers. Which technical property or constraint MOST directly matters here?

  1. Transient retries can replay committed work even after client-side timeouts.
  2. OPENJSON expands array elements into tabular rows for joins and validation.
  3. Graph relationships support path queries but still need guarded edge permissions.
  4. Silently suppressed exceptions create false evidence of committed work.

Explanation

Correct Answer

D:

Silently suppressed exceptions create false evidence of committed work. This explains why the corrective action is to use CATCH to log safely and rethrow meaningful failures rather than masking them. Confirm the diagnosis when a simulated constraint error reaches the caller with no false success.

Incorrect Answers

A:

Transient retries can replay committed work even after client-side timeouts. The actual technical constraint is that silently suppressed exceptions create false evidence of committed work.

B:

OPENJSON expands array elements into tabular rows for joins and validation. The actual technical constraint is that silently suppressed exceptions create false evidence of committed work.

C:

Graph relationships support path queries but still need guarded edge permissions. The actual technical constraint is that silently suppressed exceptions create false evidence of committed work.

Question 277

A report uses a scalar function on every row and has unexpected CPU cost. Which preventive practice BEST addresses the underlying risk over time?

  1. Verify behavior and compatibility-level differences before broad replacement.
  2. Review function ownership and data-access boundaries.
  3. Maintain least-privilege EXECUTE grants and avoid unsafe dynamic SQL.
  4. Use multirow tests and avoid cursor-based per-row assumptions.

Explanation

Correct Answer

A:

Verify behavior and compatibility-level differences before broad replacement. This guards against recurrence because per-row scalar function calls may create expensive repeated execution on some workloads. The direct remediation is: Inspect the function execution mode and consider set-based expressions or eligible scalar UDF inlining.

Incorrect Answers

B:

Review function ownership and data-access boundaries. The current task instead requires this action: verify behavior and compatibility-level differences before broad replacement.

C:

Maintain least-privilege EXECUTE grants and avoid unsafe dynamic SQL. The current task instead requires this action: verify behavior and compatibility-level differences before broad replacement.

D:

Use multirow tests and avoid cursor-based per-row assumptions. The current task instead requires this action: verify behavior and compatibility-level differences before broad replacement.

Question 278

Several related tables need unique identifiers from one coordinated numeric source. What should the SQL developer do FIRST to address the specific issue?

  1. Revise the design to tolerate gaps rather than using sequence numbers as legal receipt counters.
  2. Use a shared SQL SEQUENCE with NEXT VALUE FOR in supported database environments.
  3. Use OPENJSON with a typed WITH schema and transactional parent-child inserts.
  4. Evaluate a clustered columnstore index for large analytic scans with batch-mode benefits.

Explanation

Correct Answer

B:

Use a shared SQL SEQUENCE with NEXT VALUE FOR in supported database environments. This targets the primary issue because a sequence can allocate numbers independently of one table identity property. Verification: Concurrent inserts receive nonconflicting sequence-generated identifiers. Prevent recurrence: Do not treat allocation order as committed business transaction order.

Incorrect Answers

A:

Sequence numbers can be consumed even when transactions roll back or cache is lost.

C:

Parsing nested arrays into typed rows reduces fragile manual string extraction.

D:

Evaluate a clustered columnstore index for large analytic scans with batch-mode benefits. The relevant technical condition instead is that use a shared SQL SEQUENCE with NEXT VALUE FOR in supported database environments.

Question 279

A team wants a readable multi-step T-SQL query that filters and then aggregates customer orders. Which acceptance check is MOST directly related to this scenario?

  1. A cyclic test input is detected rather than consuming unbounded resources.
  2. An item is flagged only when above its own category average.
  3. The rewritten SELECT yields the same verified totals.
  4. Suppliers with no invoice are returned correctly with null-containing test data.

Explanation

Correct Answer

C:

The rewritten SELECT yields the same verified totals. This is the decisive observable evidence after implementing use a nonrecursive CTE as a named query expression in the next SELECT. It tests the underlying requirement: A CTE improves query readability but is not automatically materialized into a persistent table.

Incorrect Answers

A:

A cyclic test input is detected rather than consuming unbounded resources. However, that result would not establish the required outcome: the rewritten SELECT yields the same verified totals.

B:

An item is flagged only when above its own category average. However, that result would not establish the required outcome: the rewritten SELECT yields the same verified totals.

D:

Suppliers with no invoice are returned correctly with null-containing test data. However, that result would not establish the required outcome: the rewritten SELECT yields the same verified totals.

Question 280

A REST client needs filtering on a public product type but must never filter private margin columns. Which technical principle BEST explains the relevant design decision?

  1. Unbounded result sets waste bandwidth and can overload SQL and API memory.
  2. DAB generates endpoints from explicit configuration rather than automatically exposing every table.
  3. DAB can surface declared stored procedures without granting arbitrary query execution.
  4. DAB entity projection and permissions determine the API data surface.

Explanation

Correct Answer

D:

DAB entity projection and permissions determine the API data surface. This explains why the corrective action is to configure entity fields, authorization and supported filter behavior to expose only permitted fields. Confirm the diagnosis when a permitted category filter works but margin fields remain inaccessible.

Incorrect Answers

A:

Unbounded result sets waste bandwidth and can overload SQL and API memory. The actual technical constraint is that DAB entity projection and permissions determine the API data surface.

B:

DAB generates endpoints from explicit configuration rather than automatically exposing every table. The actual technical constraint is that DAB entity projection and permissions determine the API data surface.

C:

DAB can surface declared stored procedures without granting arbitrary query execution. The actual technical constraint is that DAB entity projection and permissions determine the API data surface.

Developing AI-Enabled Database Solutions (DP-800) Practice Tests