Microsoft DP-800 Questions & Answers

Randomized encryption does not support general plaintext pattern matching inside the engine.

High-volume blanket logging can impact throughput and reveal sensitive inputs.

RLS enforces row filtering in the database rather than relying on every query to remember a filter.

An approved SQL workspace exposes supported Copilot features for a licensed tester. However, that result would not establish the required outcome: a suggested migration is reviewed and staged before any database change.

The client lists authorized metadata tools and returns expected schema names. However, that result would not establish the required outcome: a suggested migration is reviewed and staged before any database change.

A security review finds no production secrets in prompt logs or history. However, that result would not establish the required outcome: a suggested migration is reviewed and staged before any database change.

Approximate retrieval may omit key passages, degrading downstream grounding. The actual technical constraint is that small synthetic benchmarks understate index and memory behavior at scale.

FREETEXT expands linguistic meaning and is not equivalent to exact phrase matching. The actual technical constraint is that small synthetic benchmarks understate index and memory behavior at scale.

Vector metadata functions describe representation without parsing serialized JSON arrays. The actual technical constraint is that small synthetic benchmarks understate index and memory behavior at scale.

Version guidance with source code and test patterns. The current task instead requires this action: retain lint, schema validation and human review independently.

Require approved pull requests and deployment identities. The current task instead requires this action: retain lint, schema validation and human review independently.

Review extension policy and entitlements quarterly. The current task instead requires this action: retain lint, schema validation and human review independently.

String resemblance cannot guarantee two records represent the same person.

Using CATCH to log safely and rethrow meaningful failures rather than masking them addresses a different database behavior; the relevant distinction is that evaluate EDIT_DISTANCE to quantify edit operations before human review.

EXISTS is a semijoin-style test of matching rows without duplicating the outer customer.

A staging publish preserves expected historical data and references. However, that result would not establish the required outcome: an unapproved pull request cannot merge to the protected branch.

Scans find no credentials and a staging deployment authenticates securely. However, that result would not establish the required outcome: an unapproved pull request cannot merge to the protected branch.

A simulated failed job produces no usable passwords in logs. However, that result would not establish the required outcome: an unapproved pull request cannot merge to the protected branch.

Embedding storage and ANN index structures grow with vector size and document count. The actual technical constraint is that vector type size limits depend on base type and platform capabilities.

Embedding similarity can confuse near-looking product codes that must match exactly. The actual technical constraint is that vector type size limits depend on base type and platform capabilities.

Exact distance calculation compares actual embeddings rather than requiring an approximate index. The actual technical constraint is that vector type size limits depend on base type and platform capabilities.

Benchmark quality loss and index size before reducing precision. The current task instead requires this action: verify platform, dimension limit and client compatibility.

Maintaining per-segment regression sets addresses a different database behavior; the relevant distinction is that verify platform, dimension limit and client compatibility.

Test sorting after any metric change. The current task instead requires this action: verify platform, dimension limit and client compatibility.

Using schema-qualified procedure references and explicit input/output parameter contracts would not correct a billing application builds SQL text with concatenated customer input and security flags injection risk. Use parameterized stored procedures with scoped execution rights.

T-SQL UDFs have restrictions on side effects and cannot be arbitrary transactional commands.

Per-row scalar function calls may create expensive repeated execution on some workloads.

Results contain one entry per source passage in a stable ranking. However, that result would not establish the required outcome: both code-number and conceptual test queries find correct passages.

Load tests meet target throughput and p95 under realistic data volume. However, that result would not establish the required outcome: both code-number and conceptual test queries find correct passages.

A simple manual calculation matches fusion output. However, that result would not establish the required outcome: both code-number and conceptual test queries find correct passages.

Optimistic concurrency only works if conflicts are detected, not silently overwritten. The actual technical constraint is that isolation choices define which committed versions are visible across statements.

Lock duration and scope influence writer blocking under concurrency. The actual technical constraint is that isolation choices define which committed versions are visible across statements.

Large transactions increase lock duration, log pressure and potential escalation. The actual technical constraint is that isolation choices define which committed versions are visible across statements.