DP-800 Premium File
- 101 Questions & Answers
- Last Update: Nov 12, 2026
An AI database feature passes casual demos but fails real user questions with stale answers
Which SQL design or implementation decision most directly addresses this requirement?
Fluency is not a reliability metric; RAG performance depends on retrieval, prompt assembly and model behavior.
Model APIs return structured envelopes with status and content fields, which must not be forwarded blindly.
Cross-boundary model processing can violate residency or contractual restrictions even when SQL itself is secured.
The stored procedure can call an external REST endpoint under its security/configuration limits; the caller must handle HTTP errors and quotas.
A downstream system needs the before and after values of important SQL row changes
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
CDC records changes from the transaction log for downstream consumption, but latency and retention need management.
Logic Apps orchestrate heterogeneous connectors and retries more directly than embedding cross-service calls in a SQL trigger.
Change Tracking reports which rows changed since a version without storing a full sequence of each column change.
At-least-once delivery and retries require idempotent consumers rather than relying on exactly-once invocation.
A relational service needs nested Customer and Order results in one GraphQL response
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
GraphQL relationships make defined SQL relations traversable through the API without arbitrary client SQL.
DAB can expose approved programmable objects while caller identity and database permissions enforce access.
Application identity, API entity permissions and SQL authorization must jointly prevent overbroad access.
Distributed trace correlation helps associate API failures, dependency latency and service operations.
A high-volume autocomplete feature uses an expensive model despite simple extraction requirements
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
A larger model is not automatically best; task complexity and throughput determine a suitable choice.
A governed model object can centralize endpoint and identity parameters for supported SQL AI operations.
Embedding quality varies by language and corpus; cross-lingual retrieval must be measured rather than assumed.
Vector similarity does not enforce authorization; retrieval still needs tenant/ACL filters.
A shared developer tool is connected to different workspaces without tenant isolation checks
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.
Least privilege reduces the impact of prompt injection, mistaken tool calls and credential disclosure.
Instruction files can guide generated suggestions toward local style and safety expectations, but must still be reviewed.
AI-assisted code generation does not waive data classification, retention and exposure restrictions.
A team needs to compare two RAG prompt templates for correctness but judges only whether output sounds fluent
Which SQL design or implementation decision most directly addresses this requirement?
Fluency is not a reliability metric; RAG performance depends on retrieval, prompt assembly and model behavior.
Model APIs return structured envelopes with status and content fields, which must not be forwarded blindly.
External network latency inside a transaction prolongs locks and increases deadlock and timeout exposure.
RAG context can be missing or ambiguous; the model must not fill unsupported gaps with invented facts.
A support agent responds to an unknown account state with invented evidence rather than an uncertainty message
Which SQL design or implementation decision most directly addresses this requirement?
RAG context can be missing or ambiguous; the model must not fill unsupported gaps with invented facts.
Retrieval-augmented prompts must not bypass database access controls through backend service identity.
External network latency inside a transaction prolongs locks and increases deadlock and timeout exposure.
Fluency is not a reliability metric; RAG performance depends on retrieval, prompt assembly and model behavior.
A cache-refresh worker only needs to learn which row keys changed since a saved checkpoint
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
Change Tracking reports which rows changed since a version without storing a full sequence of each column change.
SQL trigger bindings react to detected table changes and require correct change tracking and idempotent handler logic.
DAB can expose approved programmable objects while caller identity and database permissions enforce access.
Configuration separation allows consistent entities while credentials and endpoints differ securely across environments.
An API connects to a database through a plaintext channel on a network with untrusted intermediaries
Which SQL design or implementation decision most directly addresses this requirement?
TLS protects data in transit and endpoint verification reduces man-in-the-middle risk.
Centralized identity management reduces shared-secret exposure and improves attribution and revocation.
Model-generated tool calls are untrusted and can misuse granted database permissions unless the tool boundary enforces policy.
RLS predicates must receive authenticated tenant context and connection pooling can retain session state unless managed.
A privacy-sensitive narrative field will never be searched by equality or sorted in the database
Which SQL design or implementation decision most directly addresses this requirement?
Randomized encryption gives stronger pattern protection at the cost of limiting server-side comparisons.
Backup encryption protects copies outside the live database, but losing the key can make recovery impossible.
Dynamic Data Masking changes query presentation for covered low-privilege principals but is not cryptographic encryption.
RLS predicates must receive authenticated tenant context and connection pooling can retain session state unless managed.
A Fabric SQL solution needs event-driven triggers for source data changes without constant polling
Which SQL design or implementation decision most directly addresses this requirement?
CES integrates supported SQL changes into event consumers; exact guarantees and availability must be checked.
A fixed-dimensional vector column cannot store embeddings of an incompatible dimension without schema or model changes.
Chunk size and overlap trade off retrieval specificity and lost context; arbitrary whole-file chunks are often weak.
Structured-output mode can reduce free-form variability but application-side validation remains required.
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