DP-800 Premium File
- 101 Questions & Answers
- Last Update: Nov 12, 2026
Regulators require tamper-evident evidence of changes to financial records
Which SQL design or implementation decision most directly addresses this requirement?
Ledger adds cryptographic evidence for changes, but access governance and external digest retention remain essential.
In-Memory OLTP reduces certain latch and lock bottlenecks but has feature and capacity constraints that require workload testing.
A default supplies a value when the insert omits the column; it does not override explicit invalid inputs or validate all states.
A predicate-limited index has fewer rows to maintain and can serve a matching selective WHERE clause.
A search system changes embedding model version while keeping the same table and index
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
Different embedding models or versions need not share vector space; mixing vectors can destroy distance relevance.
CES integrates supported SQL changes into event consumers; exact guarantees and availability must be checked.
Logic Apps coordinates cross-service actions and retries but does not eliminate the need for idempotency.
Embedding freshness requires detecting source changes and re-embedding only changed meaningful content.
An organization must restore sensitive database backups without exposing them to backup operators
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
Backup encryption protects copies outside the live database, but losing the key can make recovery impossible.
Nonproduction environments should not inherit production exposure merely for test convenience.
Information classification guides which columns require stricter access, masking, encryption and auditing.
Auditing generates event evidence of SQL activity but must be configured for relevant actions and protected storage.
A vector-search system returns plausible passages but the true relevant source ranks just outside top-K
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
Answer-generation quality cannot reveal all retrieval failures; ranking metrics provide direct measurement.
ANN index retrieval can reduce full-scan cost if accuracy requirements permit, while brute-force evaluation remains a reference.
Fast response alone is not sufficient; index parameters shift the speed-quality tradeoff.
Vector column dimension and element representation drive base storage and index footprint, not row count alone.
A database contains small static lookup values that must be consistent in dev and production
Which SQL design or implementation decision most directly addresses this requirement?
Reference data needs source control and repeatable seed logic, not manual one-off production inserts.
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.
A successful compiler build is necessary but not sufficient for quality or secure schema changes.
An API supports two SQL tables but one must be hidden entirely from clients
After the team applies the intended design, which observation would most directly verify that the specific requirement was met?
DAB entity mapping and permissions limit accessible objects and operations, complementing SQL grants.
Distributed trace correlation helps associate API failures, dependency latency and service operations.
Search capability should use approved fields and query limits rather than exposing arbitrary free-form SQL.
Pagination bounds response size and limits database work per request, while stable ordering is essential.
A query must combine top keyword hits with semantic matches and one source appears in both lists
Which SQL design or implementation decision most directly addresses this requirement?
Duplicate candidates require a deliberate aggregation policy to prevent artificial rank inflation.
Raw keyword and vector scores may have different ranges and meanings, so naive addition can bias results.
Vector properties help validate dimensions and related characteristics before comparison or indexing.
Late filtering after global top-K can leak unauthorized results or starve legitimate tenant matches.
A report needs a transaction-wide stable snapshot despite concurrent writes
Which SQL design or implementation decision most directly addresses this requirement?
Snapshot transactions read a consistent row version as of transaction start without dirty reads, but writes may conflict.
Blocking is caused by incompatible locks; addressing the head blocker is different from killing every waiting request.
Efficient row identification can shorten lock holding; excess indexes can slow writes and require balanced tuning.
A cached plan based on one parameter distribution may be unsuitable for another; forced plans or hints need evidence.
A workload needs to execute a restricted predicate over encrypted sensitive values
Which SQL design or implementation decision most directly addresses this requirement?
Secure enclaves can permit certain richer operations over encrypted data within an attested protected boundary.
Managed identity supplies short-lived identity-based credentials without a long-lived application password.
Model-generated tool calls are untrusted and can misuse granted database permissions unless the tool boundary enforces policy.
Information classification guides which columns require stricter access, masking, encryption and auditing.
A reporting role requires partial email addresses for troubleshooting without changing underlying records
Which SQL design or implementation decision most directly addresses this requirement?
Dynamic Data Masking changes query presentation for covered low-privilege principals but is not cryptographic encryption.
Auditing generates event evidence of SQL activity but must be configured for relevant actions and protected storage.
Model-generated tool calls are untrusted and can misuse granted database permissions unless the tool boundary enforces policy.
Secure enclaves can permit certain richer operations over encrypted data within an attested protected boundary.
A team needs a governed REST API over selected database entities without writing a complete custom service
Which SQL design or implementation decision most directly addresses this requirement?
DAB reads configuration to expose chosen database objects as endpoints, subject to role and permission controls.
DAB entity mapping and permissions limit accessible objects and operations, complementing SQL grants.
Log Analytics supports queryable cross-resource telemetry and Azure Monitor alerting.
Distributed trace correlation helps associate API failures, dependency latency and service operations.
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