DP-800 Premium File
- 101 Questions & Answers
- Last Update: Nov 12, 2026
A streaming audit feed requires durable changes that can be processed asynchronously
Which SQL design or implementation decision most directly addresses this requirement?
CDC records changes from the transaction log for downstream consumption, but latency and retention need management.
DAB entity mapping and permissions limit accessible objects and operations, complementing SQL grants.
Logic Apps orchestrate heterogeneous connectors and retries more directly than embedding cross-service calls in a SQL trigger.
Actionable alerts require measurable thresholds, destinations and noise controls rather than generic dashboards alone.
A Fabric MCP integration has a stored client secret accidentally visible in a repository
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
Secrets in repository configuration can be leaked or copied; managed credentials reduce exposure and support rotation.
Generated SQL must meet normal secure-coding requirements; a model does not sanitize input automatically.
Traceable AI-assisted operations support accountability while logs require access and retention controls.
Grounded schema context helps prevent nonexistent objects but still requires verification of generated SQL.
A search service wants a normalized similarity score rather than an unbounded edit count
Which SQL design or implementation decision most directly addresses this requirement?
Normalized edit similarity can be easier to compare across lengths than raw edit operations, though thresholds must be tuned.
Window aggregates retain detail rows while computing group-level results, unlike GROUP BY which collapses rows.
OPENJSON shreds objects or arrays into rows and typed columns when a schema is supplied.
Errors can leave a transaction uncommittable; blindly committing from a catch block is unsafe.
Several tables need numbers from a shared independent allocation stream
Which SQL design or implementation decision most directly addresses this requirement?
Sequences generate values independently of an individual table, unlike a column-specific identity, and can still exhibit gaps.
Persisting an offset or normalized instant helps prevent ambiguity that occurs with unqualified local DATETIME values.
Referential constraints ensure stored relationships point to permitted parent keys and avoid orphan records.
A predicate-limited index has fewer rows to maintain and can serve a matching selective WHERE clause.
A service should execute only a vetted stored procedure, not read the underlying HR table directly
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
Object-level permissions enable task-specific capability without broad exposure to every table.
Network restrictions limit reachability while scoped credentials decide who can invoke supported operations.
Column-master and column-encryption key lifecycle must be managed carefully to prevent decryption outages.
Information classification guides which columns require stricter access, masking, encryption and auditing.
An employee searches for the exact product part number 'AX-2147' and wants matching identifiers
Which SQL design or implementation decision most directly addresses this requirement?
Lexical retrieval is suited to exact symbols and keywords, while semantic vectors may miss exact identifiers.
Hybrid retrieval can leverage exact-term precision and vector semantic recall if results are merged sensibly.
Indexed vector search can avoid an exhaustive scan at the cost of approximate recall and feature constraints.
Index freshness includes removal as well as addition and edits; stale documents can yield harmful answers.
A cross-platform pipeline requires MSBuild-compatible reproducible database artifact builds
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
SDK-style project definitions simplify consistent tooling and package references while preserving project build semantics.
CI/CD credentials are high-value attack targets and should not be stored in repository text.
Data and schema changes must be sequenced so new constraints do not break on preexisting invalid rows.
Postdeployment scripts handle targeted data initialization but must avoid duplicate or destructive repeated effects.
A client needs to search a field with predictable matching rules and performance
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
Search capability should use approved fields and query limits rather than exposing arbitrary free-form SQL.
Application identity, API entity permissions and SQL authorization must jointly prevent overbroad access.
API filtering reduces unnecessary result transfer but cannot replace server-side authorization.
Configuration separation allows consistent entities while credentials and endpoints differ securely across environments.
An app uses session context in an RLS predicate but fails to reset the context between users
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
RLS predicates must receive authenticated tenant context and connection pooling can retain session state unless managed.
Object-level permissions enable task-specific capability without broad exposure to every table.
RLS filter predicates address row visibility while block predicates can stop invalid INSERT/UPDATE operations.
A DENY generally overrides an inherited GRANT for an ordinary user; exceptional cases require explicit security review.
A support knowledge system must compare captions and original diagrams without discarding visual context
Which SQL design or implementation decision most directly addresses this requirement?
A text-only model cannot directly process raw images, while multimodal inputs require tested format, cost and safety handling.
Chunk size and overlap trade off retrieval specificity and lost context; arbitrary whole-file chunks are often weak.
Functions can process detected row changes automatically but require connection, concurrency and retry safeguards.
Embedding freshness requires detecting source changes and re-embedding only changed meaningful content.
A report needs all tags for each product returned as a JSON array
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
JSON_ARRAYAGG aggregates scalar or JSON values into an array, reducing custom string assembly.
JSON_VALUE reads scalar values at a specified JSON path; non-scalar fragments need a different interface.
RANK assigns tied rows the same rank and leaves gaps; DENSE_RANK does not leave gaps.
Window numbering can select one row per logical partition while a deterministic secondary sort resolves equal timestamps.
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