DP-800 Premium File
- 101 Questions & Answers
- Last Update: Nov 12, 2026
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?
Identity-based model calls reduce secret sprawl and allow endpoint permissions to be scoped and revoked.
Information classification guides which columns require stricter access, masking, encryption and auditing.
RLS predicates must receive authenticated tenant context and connection pooling can retain session state unless managed.
Server-side column encryption is different from Always Encrypted: the engine may decrypt for authorized server operations.
A service performs the same expensive vector transform for each retrieval request
Which SQL design or implementation decision most directly addresses this requirement?
Repeated per-query transformation wastes compute when the model and representation are stable.
Late filtering after global top-K can leak unauthorized results or starve legitimate tenant matches.
Near-duplicate chunks can crowd top-K slots and lower answer coverage even with accurate vector ranking.
Raw keyword and vector scores may have different ranges and meanings, so naive addition can bias results.
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?
DAB can expose approved programmable objects while caller identity and database permissions enforce access.
CDC records changes from the transaction log for downstream consumption, but latency and retention need management.
Actionable alerts require measurable thresholds, destinations and noise controls rather than generic dashboards alone.
CES can publish database changes into an event architecture, but supported platform and ordering guarantees must be checked.
A shared Copilot session proposes including live regulated records as example prompt context
Which SQL design or implementation decision most directly addresses this requirement?
AI-assisted code generation does not waive data classification, retention and exposure restrictions.
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.
Least privilege reduces the impact of prompt injection, mistaken tool calls and credential disclosure.
A development team wants all AI-generated database modifications traceable to reviewers
Which SQL design or implementation decision most directly addresses this requirement?
Traceable AI-assisted operations support accountability while logs require access and retention controls.
AI-generated rewrites can silently alter authorization or semantics even if syntactically valid.
AI suggestions can contain incorrect assumptions or unsafe migrations and are not self-approving change tickets.
License and repository settings enable assistance while source and secret access boundaries remain separate controls.
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?
AI-tool access should follow user authorization and workspace boundaries rather than tool availability alone.
AI-generated rewrites can silently alter authorization or semantics even if syntactically valid.
Prompt injection in tool output must not grant new authority or override the application trust boundary.
Model choice affects capability and governance, and prompts must stay within the approved service boundary.
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?
Retrieval-augmented prompts must not bypass database access controls through backend service identity.
RAG supplies relevant external context at answer time, reducing dependence on stale model memory but not guaranteeing truth.
Model output is untrusted data and must not be treated as authorized executable SQL.
Structured JSON preserves named fields and reduces ambiguity compared with ad hoc delimited text.
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?
Column-master and column-encryption key lifecycle must be managed carefully to prevent decryption outages.
Managed identity supplies short-lived identity-based credentials without a long-lived application password.
Endpoint convenience does not replace user authentication and data access enforcement in API and SQL layers.
Secure enclaves can permit certain richer operations over encrypted data within an attested protected boundary.
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?
Serializable isolation protects range predicates from concurrent changes but may increase blocking and deadlocks.
Statistics provide distribution estimates that influence cardinality and join strategy choices.
Latency symptoms may come from blocking, execution plans, throttling or network; one symptom cannot establish root cause.
Performance changes need controlled before-and-after measurement because cache, concurrency and statistics distort comparisons.
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?
Indexed vector search can avoid an exhaustive scan at the cost of approximate recall and feature constraints.
Vector properties help validate dimensions and related characteristics before comparison or indexing.
Fast response alone is not sufficient; index parameters shift the speed-quality tradeoff.
RRF combines positional rankings and avoids directly adding incompatible score scales.
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?
Prompt injection in tool output must not grant new authority or override the application trust boundary.
Model Context Protocol tools amplify backend permissions and should be least-privilege for AI workflows.
AI-tool access should follow user authorization and workspace boundaries rather than tool availability alone.
Secrets in repository configuration can be leaked or copied; managed credentials reduce exposure and support rotation.
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