Pass Microsoft DP-800 Exam in First Attempt Easily
Real Microsoft DP-800 Exam Questions, Accurate & Verified Answers As Experienced in the Actual Test!

Verified by experts

DP-800 Premium File

  • 101 Questions & Answers
  • Last Update: Nov 12, 2026
$69.99 $76.99

Developing AI-Enabled Database Solutions DP-800 Practice Test 90

Question 890

A pull request adds a new table without indexes or tests and a developer wants to merge on build success alone

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

  1. Use an idempotent postdeployment seed script tracked with the SQL project
  2. Add integration tests that exercise application-to-database behavior on a disposable environment
  3. Resolve schema merge conflicts in source with database-aware review and a clean build
  4. Require a defined suite of SQL lint/build/test and review checks on schema pull requests

Explanation

Correct Answer

D:

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

Incorrect Answers

A:

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

B:

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

C:

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

Question 891

A repository contains team-specific SQL conventions but Copilot proposes inconsistent naming

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

  1. Compiled and reviewed SQL references only existing approved columns and tables
  2. Generated sample changes follow approved conventions and code owners verify deviations explicitly
  3. A test assistant can inspect allowed metadata but cannot invoke a data mutation operation
  4. An authorized workspace member can invoke the supported Copilot feature while an excluded role cannot

Explanation

Correct Answer

B:

Instruction files can guide generated suggestions toward local style and safety expectations, but must still be reviewed.

Incorrect Answers

A:

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

C:

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

D:

Copilot features depend on administrative eligibility and workspace settings rather than appearing automatically for every user.

Question 892

An analyst needs individual words from product comments as relational rows for counting

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

  1. Use REGEXP_SPLIT_TO_TABLE with an appropriate delimiter expression
  2. Use SQL graph MATCH patterns over the relevant node and edge tables
  3. Add cycle-aware traversal rules and a tested MAXRECURSION limit where appropriate
  4. Use JSON_OBJECT to build object properties rather than concatenate unescaped strings

Explanation

Correct Answer

A:

Regex splitting can turn patterned text delimiters into row values for relational processing.

Incorrect Answers

B:

Graph MATCH expresses edge relationships in a pattern rather than merely comparing flat key columns.

C:

Recursive CTEs need termination and data-integrity safeguards; a recursion cap is a protective limit, not a substitute for valid hierarchy rules.

D:

JSON_OBJECT produces correctly structured JSON property/value pairs and avoids manual quoting errors.

Question 893

A coding assistant repeatedly fabricates table columns when only table names are in the prompt

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

  1. A test of destructive operations fails while metadata lookup still functions
  2. Generated sample changes follow approved conventions and code owners verify deviations explicitly
  3. Compiled and reviewed SQL references only existing approved columns and tables
  4. A predeployment check flags the unauthorized DROP operation and blocks deployment

Explanation

Correct Answer

C:

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

Incorrect Answers

A:

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

B:

Instruction files can guide generated suggestions toward local style and safety expectations, but must still be reviewed.

D:

Natural-language prompts do not guarantee safe SQL, so explicit statement-level approval protects critical schema.

Question 894

A knowledge search must handle both exact error codes and natural-language troubleshooting questions

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

  1. Use exhaustive nearest-neighbor evaluation for accuracy-sensitive or benchmark workloads
  2. Use full-text or exact lexical search appropriate for exact tokens and terms
  3. Build appropriate full-text index structures for lexical search where supported
  4. Combine lexical and semantic retrieval in a hybrid search pipeline

Explanation

Correct Answer

D:

Hybrid retrieval can leverage exact-term precision and vector semantic recall if results are merged sensibly.

Incorrect Answers

A:

Exhaustive nearest-neighbor comparison checks all eligible vectors and provides a recall reference for ANN.

B:

Lexical retrieval is suited to exact symbols and keywords, while semantic vectors may miss exact identifiers.

C:

Full-text indexing supports token-oriented search and ranking beyond simple substring scans.

Question 895

An allocation procedure reads a set of free seats and cannot permit a concurrent phantom insert

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

  1. Use SNAPSHOT isolation when enabled and suited to the consistency and conflict policy
  2. Collect representative baselines under comparable workload, data and cache conditions
  3. Consider SERIALIZABLE isolation for the critical predicate range with evaluated contention costs
  4. Refresh relevant statistics and evaluate automatic statistics maintenance policy

Explanation

Correct Answer

C:

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

Incorrect Answers

A:

Snapshot transactions read a consistent row version as of transaction start without dirty reads, but writes may conflict.

B:

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

D:

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

Question 896

A developer computes distances between two SQL embedding columns but uses incompatible vector dimensions

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

  1. Introduce tested diversity or deduplication rules after tenant-filtered candidate retrieval
  2. Use exhaustive nearest-neighbor evaluation for accuracy-sensitive or benchmark workloads
  3. Estimate vector element type, dimensionality and index overhead before sizing storage
  4. Use VECTOR_DISTANCE only on compatible vectors with an explicitly chosen metric

Explanation

Correct Answer

D:

Distance calculation requires aligned dimensions and semantics, and metric choice affects ordering.

Incorrect Answers

A:

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

B:

Exhaustive nearest-neighbor comparison checks all eligible vectors and provides a recall reference for ANN.

C:

Vector column dimension and element representation drive base storage and index footprint, not row count alone.

Question 897

An AI assistant is allowed to propose a data correction but must not silently modify regulated tables

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

  1. Separate model suggestions from human-approved, parameterized database writes
  2. Project and aggregate only approved necessary SQL fields before sending model context
  3. Validate model outputs against source numeric fields and use deterministic SQL for calculations
  4. Parse the external response with supported JSON processing and validate expected response structure

Explanation

Correct Answer

A:

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

Incorrect Answers

B:

Data minimization reduces privacy exposure, inference risk and token costs without impairing the specific answer.

C:

LLMs are not authoritative for arithmetic or source-of-truth values; database computations should remain deterministic.

D:

Model APIs return structured envelopes with status and content fields, which must not be forwarded blindly.

Question 898

A developer grants db_datareader to an API merely so it can call one business workflow

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

  1. The service can execute its approved procedure but SELECT from the sensitive base table is denied
  2. A data scan detects no real customer identifiers while migration and query tests still pass
  3. Both an unapproved network source and an unauthorized identity fail independently
  4. Unauthenticated and unauthorized requests are blocked while a least-privilege role reads its permitted entity

Explanation

Correct Answer

A:

Object-level permissions enable task-specific capability without broad exposure to every table.

Incorrect Answers

B:

Nonproduction environments should not inherit production exposure merely for test convenience.

C:

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

D:

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

Question 899

A retrieval system needs semantic diversity while respecting per-customer access

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

  1. Restrict indexed/searchable columns and enforce permissions independently of relevance
  2. Use semantic vector retrieval with a relevant embedding model
  3. Estimate vector element type, dimensionality and index overhead before sizing storage
  4. Introduce tested diversity or deduplication rules after tenant-filtered candidate retrieval

Explanation

Correct Answer

D:

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

Incorrect Answers

A:

Index membership can make data discoverable; search permission cannot be inferred from index design.

B:

Vector similarity can match related meaning beyond exact token overlap if embedding quality is adequate.

C:

Vector column dimension and element representation drive base storage and index footprint, not row count alone.

Question 900

A contact import wants to normalize repeated punctuation patterns without hand-written nested REPLACE functions

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

  1. Exactly one newest record is selected for each partition entity, including cases with tied timestamps
  2. Input samples with varied spacing normalize correctly and unrelated characters remain unchanged
  3. Documents with the target member match and lookalike values without exact membership do not
  4. Seeded likely duplicates outrank unrelated names without automatically merging different people

Explanation

Correct Answer

B:

Regular-expression replacement handles matching text patterns and should be tested for unintended matches.

Incorrect Answers

A:

Window numbering can select one row per logical partition while a deterministic secondary sort resolves equal timestamps.

C:

JSON membership testing asks whether a value is contained in the target JSON expression rather than extracting one scalar only.

D:

Jaro-Winkler style similarity rewards matching character patterns and helps with transpositions but cannot prove identity.

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

SPECIAL OFFER: GET 10% OFF
This is ONE TIME OFFER

You save
10%

Enter Your Email Address to Receive Your 10% Off Discount Code

SPECIAL OFFER: GET 10% OFF

You save
10%

Use Discount Code:

A confirmation link was sent to your e-mail.

Please check your mailbox for a message from support@examlabs.com and follow the directions.

Download Free Demo of VCE Exam Simulator

Experience Avanset VCE Exam Simulator for yourself.

Simply submit your email address below to get started with our interactive software demo of your free trial.

  • Realistic exam simulation and exam editor with preview functions
  • Whole exam in a single file with several different question types
  • Customizable exam-taking mode & detailed score reports