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Developing AI-Enabled Database Solutions DP-800 Practice Test 32

Question 310

A SQL workload calls an AI model endpoint and code contains a static API key

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

  1. A sample inventory maps confidential columns to approved policies and restricted roles
  2. Sequential tests from two tenants on a reused connection never return the first tenant's data to the second
  3. Authorized SQL decryption returns the correct value while permissions block unauthorized key use
  4. A permitted identity invokes the model and an unauthorized identity receives an access-denied response

Explanation

Correct Answer

D:

Identity-based model calls reduce secret sprawl and allow endpoint permissions to be scoped and revoked.

Incorrect Answers

A:

Information classification guides which columns require stricter access, masking, encryption and auditing.

B:

RLS predicates must receive authenticated tenant context and connection pooling can retain session state unless managed.

C:

Server-side column encryption is different from Always Encrypted: the engine may decrypt for authorized server operations.

Question 311

A service performs the same expensive vector transform for each retrieval request

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

  1. Filter by authorization as early as supported in retrieval and never expose unauthorized candidates
  2. Introduce tested diversity or deduplication rules after tenant-filtered candidate retrieval
  3. Precompute stable vector normalization or compatible index state where supported
  4. Use rank-based fusion or calibrated score normalization before merging lexical and vector results

Explanation

Correct Answer

C:

Repeated per-query transformation wastes compute when the model and representation are stable.

Incorrect Answers

A:

Late filtering after global top-K can leak unauthorized results or starve legitimate tenant matches.

B:

Near-duplicate chunks can crowd top-K slots and lower answer coverage even with accurate vector ranking.

D:

Raw keyword and vector scores may have different ranges and meanings, so naive addition can bias results.

Question 312

A service team wants to expose a database operation but not allow uncontrolled dynamic SQL

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

  1. Use change data capture when row-level historical change details are required and supported
  2. Configure a DAB stored-procedure entity with restricted endpoint operations and SQL grants
  3. Configure Azure Monitor alert rules on appropriate metrics/log queries and an action group
  4. Evaluate Change Event Streaming (CES) where the chosen SQL platform supports it

Explanation

Correct Answer

B:

DAB can expose approved programmable objects while caller identity and database permissions enforce access.

Incorrect Answers

A:

CDC records changes from the transaction log for downstream consumption, but latency and retention need management.

C:

Actionable alerts require measurable thresholds, destinations and noise controls rather than generic dashboards alone.

D:

CES can publish database changes into an event architecture, but supported platform and ordering guarantees must be checked.

Question 313

A shared Copilot session proposes including live regulated records as example prompt context

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

  1. Enable appropriate audit logging of AI tool calls, principal, target and result without storing secrets
  2. Supply vetted schema metadata through a governed read-only tool rather than invent names
  3. Create a narrowly scoped read-only identity or role for the assistant's metadata retrieval
  4. Replace raw sensitive values with sanitized schema and sample fixtures before invoking the AI tool

Explanation

Correct Answer

D:

AI-assisted code generation does not waive data classification, retention and exposure restrictions.

Incorrect Answers

A:

Traceable AI-assisted operations support accountability while logs require access and retention controls.

B:

Grounded schema context helps prevent nonexistent objects but still requires verification of generated SQL.

C:

Least privilege reduces the impact of prompt injection, mistaken tool calls and credential disclosure.

Question 314

A development team wants all AI-generated database modifications traceable to reviewers

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

  1. Compare generated SQL against security predicates and regression tests before merging
  2. Enable appropriate audit logging of AI tool calls, principal, target and result without storing secrets
  3. Run generated SQL through code review, controlled testing and authorized deployment gates
  4. Configure GitHub Copilot entitlement and repository controls under organizational policy

Explanation

Correct Answer

B:

Traceable AI-assisted operations support accountability while logs require access and retention controls.

Incorrect Answers

A:

AI-generated rewrites can silently alter authorization or semantics even if syntactically valid.

C:

AI suggestions can contain incorrect assumptions or unsafe migrations and are not self-approving change tickets.

D:

License and repository settings enable assistance while source and secret access boundaries remain separate controls.

Question 315

A Fabric copilot session is given a lakehouse MCP tool that can enumerate more databases than the user needs

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

  1. An authenticated test can list authorized metadata but cannot enumerate other customers' workspaces
  2. Tenant-isolation tests and result comparisons pass for both authorized and unauthorized identities
  3. A seeded malicious comment does not trigger export or additional tool invocation
  4. The session displays the approved model and request logs show no traffic to disallowed providers

Explanation

Correct Answer

A:

AI-tool access should follow user authorization and workspace boundaries rather than tool availability alone.

Incorrect Answers

B:

AI-generated rewrites can silently alter authorization or semantics even if syntactically valid.

C:

Prompt injection in tool output must not grant new authority or override the application trust boundary.

D:

Model choice affects capability and governance, and prompts must stay within the approved service boundary.

Question 316

A RAG workflow returns a source link but that source belongs to another tenant

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

  1. A cross-tenant test question cannot access or cite another customer's SQL records
  2. An updated policy source appears in a cited answer and a conflicting old policy is not used
  3. A malicious model response cannot perform a write and only approved validated updates are executed
  4. A payload round-trips through a JSON parser with the expected typed properties and no missing fields

Explanation

Correct Answer

A:

Retrieval-augmented prompts must not bypass database access controls through backend service identity.

Incorrect Answers

B:

RAG supplies relevant external context at answer time, reducing dependence on stale model memory but not guaranteeing truth.

C:

Model output is untrusted data and must not be treated as authorized executable SQL.

D:

Structured JSON preserves named fields and reduces ambiguity compared with ad hoc delimited text.

Question 317

A security team has retired an encryption key referenced by protected SQL columns

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

  1. A restarted workload connects using its assigned principal and no SQL password is present in deployment secrets
  2. Old key access can be revoked after authorized clients read all migrated protected records
  3. Unauthenticated and unauthorized requests are blocked while a least-privilege role reads its permitted entity
  4. The specific supported encrypted operation succeeds with an approved enclave configuration without exposing keys in clear to administrators

Explanation

Correct Answer

B:

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

Incorrect Answers

A:

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

C:

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

D:

Secure enclaves can permit certain richer operations over encrypted data within an attested protected boundary.

Question 318

A financial transaction must prevent another session from inserting a row that changes a predicate result

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

  1. Two concurrent allocation tests preserve the required invariant without phantom-induced double allocation
  2. The estimated row count approaches measured rows and representative query elapsed time improves
  3. The identified bottleneck reproduces the timeout and a targeted fix removes it without unrelated changes
  4. Several comparable test runs show a repeatable performance gain on business-critical queries

Explanation

Correct Answer

A:

Serializable isolation protects range predicates from concurrent changes but may increase blocking and deadlocks.

Incorrect Answers

B:

Statistics provide distribution estimates that influence cardinality and join strategy choices.

C:

Latency symptoms may come from blocking, execution plans, throttling or network; one symptom cannot establish root cause.

D:

Performance changes need controlled before-and-after measurement because cache, concurrency and statistics distort comparisons.

Question 319

A SQL workload must retrieve approximate nearest matches from a supported vector index

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

  1. A validation query reports the expected dimension for every migrated vector
  2. The indexed search meets recall-at-k and latency requirements on representative queries
  3. An approved configuration meets both minimum recall and maximum latency budgets
  4. A toy example produces the expected rank-fused order and removes repeated document IDs

Explanation

Correct Answer

B:

Indexed vector search can avoid an exhaustive scan at the cost of approximate recall and feature constraints.

Incorrect Answers

A:

Vector properties help validate dimensions and related characteristics before comparison or indexing.

C:

Fast response alone is not sufficient; index parameters shift the speed-quality tradeoff.

D:

RRF combines positional rankings and avoids directly adding incompatible score scales.

Question 320

A retrieved database description attempts to change the assistant's system instructions

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

  1. A test assistant can inspect allowed metadata but cannot invoke a data mutation operation
  2. A seeded malicious comment does not trigger export or additional tool invocation
  3. An authenticated test can list authorized metadata but cannot enumerate other customers' workspaces
  4. A repository scan finds no plaintext credentials and a test connection still succeeds under approved identity

Explanation

Correct Answer

B:

Prompt injection in tool output must not grant new authority or override the application trust boundary.

Incorrect Answers

A:

Model Context Protocol tools amplify backend permissions and should be least-privilege for AI workflows.

C:

AI-tool access should follow user authorization and workspace boundaries rather than tool availability alone.

D:

Secrets in repository configuration can be leaked or copied; managed credentials reduce exposure and support rotation.

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

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