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Developing AI-Enabled Database Solutions DP-800 Practice Test 21

Question 200

A stored procedure updates stock and order status, but failure in the second update leaves inconsistent data

After the team applies the intended design, which observation would most directly verify that the specific requirement was met?

  1. Two consumers query the same view and receive consistent authorized columns and predicates
  2. A forced failure in the second statement restores original stock and payment records
  3. A test principal can query approved columns through the view but cannot query the base table directly
  4. The replacement returns the same rows and the actual plan shows improved estimates or acceptable execution time

Explanation

Correct Answer

B:

An explicit transaction and consistent failure policy enforce atomicity across multiple statements.

Incorrect Answers

A:

Views centralize a logical query definition without storing an independent copy of rows by default.

C:

Views can serve as a restricted interface but must be combined with appropriate permissions and row filtering.

D:

Multistatement TVFs can introduce estimation and optimization limitations, so an inline form is preferred when expressive enough.

Question 201

A deployment pipeline should be able to revoke cloud access without changing repository secrets

After the team applies the intended design, which observation would most directly verify that the specific requirement was met?

  1. An authorized workflow gets short-lived credentials and unauthorized repository branches cannot assume the role
  2. An unreviewed branch cannot deploy to production and approved release candidates can
  3. The same build artifact deploys to staging and production using explicitly different approved settings
  4. An unauthorized PR cannot merge sensitive schema changes without the required owner approval

Explanation

Correct Answer

A:

Federated OIDC authentication limits reusable secret material while retaining policy-controlled authorization.

Incorrect Answers

B:

CI can build frequently while CD must respect protected environments, approvals and test conditions.

C:

A consistent schema artifact should be promoted while environment-specific values are provided securely at deployment.

D:

Policy-enforced reviews prevent bypassing designated security and database approvers.

Question 202

A release process needs a repeatable versioned package representing the expected SQL schema

After the team applies the intended design, which observation would most directly verify that the specific requirement was met?

  1. A deliberately invalid PR is blocked by the relevant test or security rule before merge
  2. The cleaned test dataset satisfies the new FK and a failed remediation does not partially apply
  3. The app completes representative create/read/update operations against a freshly deployed test database
  4. A clean target receives the approved schema and a drift report matches the expected model

Explanation

Correct Answer

D:

A DACPAC packages the declarative database model used by supported deployment tools.

Incorrect Answers

A:

A successful compiler build is necessary but not sufficient for quality or secure schema changes.

B:

Data and schema changes must be sequenced so new constraints do not break on preexisting invalid rows.

C:

Build success does not prove connections, permissions, seed data and business workflows work together.

Question 203

A managed endpoint is private but a broad service identity can invoke models not assigned to its project

Which SQL design or implementation decision most directly addresses this requirement?

  1. Add an appropriate Row-Level Security block predicate for prohibited writes
  2. Use Always Encrypted with client-side key handling and protected column encryption metadata
  3. Apply identity authorization and network access as complementary model endpoint controls
  4. Enforce authentication, entity permissions and least-privilege database authorization on REST and GraphQL

Explanation

Correct Answer

C:

Network restrictions limit reachability while scoped credentials decide who can invoke supported operations.

Incorrect Answers

A:

RLS filter predicates address row visibility while block predicates can stop invalid INSERT/UPDATE operations.

B:

Always Encrypted keeps sensitive column values inaccessible to parties lacking client-side keys, unlike server-only encryption at rest.

D:

Endpoint convenience does not replace user authentication and data access enforcement in API and SQL layers.

Question 204

A production deployment is triggered automatically by every commit, including unreviewed branches

Which SQL design or implementation decision most directly addresses this requirement?

  1. Reconcile the approved manual change into the project before deploying a new model
  2. Configure deployment triggers and environment approval gates for production
  3. Add integration tests that exercise application-to-database behavior on a disposable environment
  4. Resolve schema merge conflicts in source with database-aware review and a clean build

Explanation

Correct Answer

B:

CI can build frequently while CD must respect protected environments, approvals and test conditions.

Incorrect Answers

A:

Unmanaged production modifications can be overwritten unless intentionally captured in source control.

C:

Build success does not prove connections, permissions, seed data and business workflows work together.

D:

Text merges may not produce semantically compatible database designs, requiring explicit conflict resolution.

Question 205

An order workflow keeps locks held while waiting seconds for a model completion

After the team applies the intended design, which observation would most directly verify that the specific requirement was met?

  1. Every factual assertion in the controlled test can be traced to the corresponding permitted source row
  2. A permitted test call reaches the intended model endpoint and response status is handled explicitly
  3. Concurrent order writes stay responsive while the AI step runs independently under a defined consistency contract
  4. Representative queries stay within token budget and still include the labeled answer-bearing chunks

Explanation

Correct Answer

C:

External network latency inside a transaction prolongs locks and increases deadlock and timeout exposure.

Incorrect Answers

A:

Source metadata supports provenance checks and keeps generated statements linked to authorized records.

B:

The stored procedure can call an external REST endpoint under its security/configuration limits; the caller must handle HTTP errors and quotas.

D:

Excess context raises cost, latency and distraction; selective retrieval improves the model's usable evidence.

Question 206

An automated merge preserves both versions of a SQL object and the build becomes inconsistent

Which SQL design or implementation decision most directly addresses this requirement?

  1. Resolve schema merge conflicts in source with database-aware review and a clean build
  2. Require a defined suite of SQL lint/build/test and review checks on schema pull requests
  3. Deploy only immutable approved artifacts with a trigger and approval policy matching release intent
  4. Add integration tests that exercise application-to-database behavior on a disposable environment

Explanation

Correct Answer

A:

Text merges may not produce semantically compatible database designs, requiring explicit conflict resolution.

Incorrect Answers

B:

A successful compiler build is necessary but not sufficient for quality or secure schema changes.

C:

Decoupling build and deploy improves traceability and avoids publishing unreviewed source.

D:

Build success does not prove connections, permissions, seed data and business workflows work together.

Question 207

An application adds a required column to a huge table while older app instances still write rows

After the team applies the intended design, which observation would most directly verify that the specific requirement was met?

  1. Both old and new app versions pass reads/writes during rollout and final cleanup follows after cutover
  2. A clean target receives the approved schema and a drift report matches the expected model
  3. A containerized CI build produces the same validated database model artifact from a clean clone
  4. Running the deployment twice leaves one expected seed row and the correct feature flags

Explanation

Correct Answer

A:

Backward-compatible intermediate schema lets mixed app versions operate safely until a later cleanup.

Incorrect Answers

B:

A DACPAC packages the declarative database model used by supported deployment tools.

C:

SDK-style project definitions simplify consistent tooling and package references while preserving project build semantics.

D:

Postdeployment scripts handle targeted data initialization but must avoid duplicate or destructive repeated effects.

Question 208

A database integration calls an external model but its endpoint details are duplicated in every stored procedure

After the team applies the intended design, which observation would most directly verify that the specific requirement was met?

  1. Retrieval comparison confirms all indexed vectors were produced by the intended model version
  2. Cross-tenant test queries cannot surface protected chunks even when semantic similarity is high
  3. A test database session resolves the expected model and unauthorized roles cannot invoke it
  4. Replaying an embedding job leaves one vector per intended source version

Explanation

Correct Answer

C:

A governed model object can centralize endpoint and identity parameters for supported SQL AI operations.

Incorrect Answers

A:

Different embedding models or versions need not share vector space; mixing vectors can destroy distance relevance.

B:

Vector similarity does not enforce authorization; retrieval still needs tenant/ACL filters.

D:

Idempotent update/upsert logic prevents duplicate business vectors during retries and parallel workers.

Question 209

A source-controlled SQL model is missing an approved emergency database change

After the team applies the intended design, which observation would most directly verify that the specific requirement was met?

  1. A containerized CI build produces the same validated database model artifact from a clean clone
  2. No unreviewed direct main-branch change is accepted and merged schema builds successfully
  3. The deployment preview no longer proposes removing the justified emergency index
  4. An unauthorized PR cannot merge sensitive schema changes without the required owner approval

Explanation

Correct Answer

C:

Unmanaged production modifications can be overwritten unless intentionally captured in source control.

Incorrect Answers

A:

SDK-style project definitions simplify consistent tooling and package references while preserving project build semantics.

B:

Branch and pull-request workflow supports review, traceability and controlled merging of schema changes.

D:

Policy-enforced reviews prevent bypassing designated security and database approvers.

Question 210

A container workload must authenticate to an Azure database without distributing shared SQL login secrets

After the team applies the intended design, which observation would most directly verify that the specific requirement was met?

  1. Test GRANT and denied SELECT events appear with identity, time and action at the audit destination
  2. Old key access can be revoked after authorized clients read all migrated protected records
  3. A restricted principal cannot query or infer prohibited records under the combined controls
  4. A restarted workload connects using its assigned principal and no SQL password is present in deployment secrets

Explanation

Correct Answer

D:

Managed identity supplies short-lived identity-based credentials without a long-lived application password.

Incorrect Answers

A:

Auditing generates event evidence of SQL activity but must be configured for relevant actions and protected storage.

B:

Column-master and column-encryption key lifecycle must be managed carefully to prevent decryption outages.

C:

Masking is a presentation control; filtering, permissions, and inference risks remain if users can query too freely.

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

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