cert
cert-1
cert-2

Pass Microsoft DP-300 Exam in First Attempt Guaranteed!

Get 100% Latest Exam Questions, Accurate & Verified Answers to Pass the Actual Exam!
30 Days Free Updates, Instant Download!

cert-5
cert-6
DP-300 Exam - Verified By Experts
DP-300 Premium Bundle
$29.98

DP-300 Premium Bundle

$79.99
$109.97
  • Premium File 470 Questions & Answers. Last update: Nov 10, 2026
  • Training Course 130 Video Lectures
  • Study Guide 672 Pages
 
$109.97
$79.99
accept 43 downloads in last 7 days
block-screenshots
Purchase Microsoft DP-300 Exam Training Products Individually
Microsoft DP-300 Premium File
Premium File 470 Q&A
$76.99$69.99
Microsoft DP-300 Video Training Course
Training Course 130 Lectures
$21.99 $19.99
Microsoft DP-300 PDF Study Guide
Study Guide 672 Pages
$21.99 $19.99
Microsoft DP-300 Practice Test 46

Question 450

A SQL Server VM takes a full backup every Sunday and promises five-minute RPO without any transaction-log backup schedule. Which observable result BEST proves the database administration requirement is satisfied?

  1. A complete chain can be restored to the required point using valid full, differential and sequential log backups with proven integrity.
  2. A recoverable backup is stored under controlled access and a real restore exercise proves the chain, keys and application consistency requirements.
  3. A restore to the required historical point completes into a supported database target and data plus dependent identities are validated.
  4. After a planned or forced failover the intended database endpoint serves valid writes and read-only workloads under documented consistency limits.

Explanation

Correct Answer

A:

A complete chain can be restored to the required point using valid full, differential and sequential log backups with proven integrity. This is the observable database and application outcome rather than merely a saved setting. A full backup without subsequent transaction-log backups cannot recover every later transaction; SIMPLE recovery changes log backup support.

Incorrect Answers

B:

A recoverable backup is stored under controlled access and a real restore exercise proves the chain, keys and application consistency requirements. This would validate Backup to Azure Blob URL and tested cloud restore, but it does not establish the required outcome here. Verify instead: A complete chain can be restored to the required point using valid full, differential and sequential log backups with proven integrity.

C:

A restore to the required historical point completes into a supported database target and data plus dependent identities are validated. This would validate Azure SQL automatic PITR and long-term retention, but it does not establish the required outcome here. Verify instead: A complete chain can be restored to the required point using valid full, differential and sequential log backups with proven integrity.

D:

After a planned or forced failover the intended database endpoint serves valid writes and read-only workloads under documented consistency limits. This would validate Azure SQL Database active geo replication and failover groups, but it does not establish the required outcome here. Verify instead: A complete chain can be restored to the required point using valid full, differential and sequential log backups with proven integrity.

Question 451

An operator restores a differential backup based on an older full backup from the wrong chain and SQL Server rejects it. Which diagnostic evidence should the database administrator check FIRST?

  1. Inspect monitor-server history, last backup/copied/restored times, log chain continuity, share access, standby mode and restore delay.
  2. Inspect Windows Server failover cluster or supported Linux HA configuration, availability replica state, listener IP/DNS, synchronization health, AG endpoint port and failover readiness.
  3. Inspect backup URL, SAS or managed identity support by SQL version, container permissions, encryption/certificate material, backup headers and RESTORE VERIFYONLY caveats.
  4. Inspect database recovery model, complete backup-chain LSNs, log backup cadence, backup checksums, database state and recovery target.

Explanation

Correct Answer

D:

Inspect database recovery model, complete backup-chain LSNs, log backup cadence, backup checksums, database state and recovery target. This is the discriminating system or configuration evidence for the case. A full backup without subsequent transaction-log backups cannot recover every later transaction; SIMPLE recovery changes log backup support. Corresponding approach: Plan full, differential and transaction-log backups using appropriate SQL Server recovery model and restore order for the intended point-in-time objective.

Incorrect Answers

A:

Inspect monitor-server history, last backup/copied/restored times, log chain continuity, share access, standby mode and restore delay. These checks primarily test Log shipping health and recovery orchestration instead of the critical system behavior in this case. Examine: Inspect database recovery model, complete backup-chain LSNs, log backup cadence, backup checksums, database state and recovery target.

B:

Inspect Windows Server failover cluster or supported Linux HA configuration, availability replica state, listener IP/DNS, synchronization health, AG endpoint port and failover readiness. These checks primarily test Always On availability groups on SQL Server VMs and SQL MI links instead of the critical system behavior in this case. Examine: Inspect database recovery model, complete backup-chain LSNs, log backup cadence, backup checksums, database state and recovery target.

C:

Inspect backup URL, SAS or managed identity support by SQL version, container permissions, encryption/certificate material, backup headers and RESTORE VERIFYONLY caveats. These checks primarily test Backup to Azure Blob URL and tested cloud restore instead of the critical system behavior in this case. Examine: Inspect database recovery model, complete backup-chain LSNs, log backup cadence, backup checksums, database state and recovery target.

Question 452

An app is deployed into a VNet with an approved private endpoint, but it still resolves the public SQL hostname because the private DNS zone is not linked. Which observable result BEST proves the database administration requirement is satisfied?

  1. Database files and supported backups remain encrypted with accessible protectors, and rotation or failover does not block required recovery operations.
  2. Authorized workloads resolve the intended endpoint and connect over the required private or permitted path while unauthorized public sources are blocked.
  3. Low-trust users receive suitably masked results while sensitive storage and access controls still enforce separately tested privacy requirements.
  4. Investigators obtain the intended activity or row-change evidence, while tampering or synchronization gaps are detected by the correct feature-specific controls.

Explanation

Correct Answer

B:

Authorized workloads resolve the intended endpoint and connect over the required private or permitted path while unauthorized public sources are blocked. This is the observable database and application outcome rather than merely a saved setting. A Private Endpoint does not provide correct DNS records automatically in every custom network; name resolution and access policy require separate verification.

Incorrect Answers

A:

Database files and supported backups remain encrypted with accessible protectors, and rotation or failover does not block required recovery operations. This would validate Transparent data encryption keys and protector lifecycle, but it does not establish the required outcome here. Verify instead: Authorized workloads resolve the intended endpoint and connect over the required private or permitted path while unauthorized public sources are blocked.

C:

Low-trust users receive suitably masked results while sensitive storage and access controls still enforce separately tested privacy requirements. This would validate Dynamic data masking classification and permission differences, but it does not establish the required outcome here. Verify instead: Authorized workloads resolve the intended endpoint and connect over the required private or permitted path while unauthorized public sources are blocked.

D:

Investigators obtain the intended activity or row-change evidence, while tampering or synchronization gaps are detected by the correct feature-specific controls. This would validate Azure SQL auditing ledger and change tracking distinctions, but it does not establish the required outcome here. Verify instead: Authorized workloads resolve the intended endpoint and connect over the required private or permitted path while unauthorized public sources are blocked.

Question 453

A team enables Change Tracking yet does not handle cleanup retention, leaving offline clients with sync versions too old for incremental replay. Which Azure SQL or SQL Server administrative approach is MOST appropriate?

  1. Configure supported Microsoft Entra authentication and database users or contained identities for Azure SQL, ensuring the application principal receives only required permissions.
  2. Distinguish authentication from authorization using SQL error context, Entra membership and database principal mapping before changing firewall or granting elevated roles.
  3. Configure database auditing for activity accountability, select Change Tracking or Change Data Capture for supported data-change synchronization, and use ledger only when tamper-evidence requirements justify it.
  4. Implement Row-Level Security with a carefully tested predicate function and security policy for each tenant or business boundary, independent of form-level filtering.

Explanation

Correct Answer

C:

Configure database auditing for activity accountability, select Change Tracking or Change Data Capture for supported data-change synchronization, and use ledger only when tamper-evidence requirements justify it. This is the supported administration mechanism for the described workload. SQL auditing, change tracking, CDC and ledger answer different questions; enabling one does not guarantee identical transaction history or immutable external evidence. Verify with: Examine audit destinations, retention and access, captured event classes, Change Tracking version retention, CDC capture jobs, ledger digest verification and application expectations.

Incorrect Answers

A:

Configure supported Microsoft Entra authentication and database users or contained identities for Azure SQL, ensuring the application principal receives only required permissions. This addresses Microsoft Entra authentication with contained service identity, not the controlling requirement here. A successful token request is not sufficient if the database principal, scope or permissions are missing or the token targets the wrong resource. Prefer: Configure database auditing for activity accountability, select Change Tracking or Change Data Capture for supported data-change synchronization, and use ledger only when tamper-evidence requirements justify it.

B:

Distinguish authentication from authorization using SQL error context, Entra membership and database principal mapping before changing firewall or granting elevated roles. This addresses Diagnosing login failure and group-based access, not the controlling requirement here. Network allow rules cannot repair a database permission denial, and a valid directory group may still lack an associated database user. Prefer: Configure database auditing for activity accountability, select Change Tracking or Change Data Capture for supported data-change synchronization, and use ledger only when tamper-evidence requirements justify it.

D:

Implement Row-Level Security with a carefully tested predicate function and security policy for each tenant or business boundary, independent of form-level filtering. This addresses Row-level security and ownership predicates, not the controlling requirement here. Client-side WHERE filters are not a database security boundary, and incorrectly scoped predicates can leak cross-tenant data. Prefer: Configure database auditing for activity accountability, select Change Tracking or Change Data Capture for supported data-change synchronization, and use ledger only when tamper-evidence requirements justify it.

Question 454

A new schema is deployed after role grants, and app users can query old objects but not a newly created table due to missing schema-level permissions. Which diagnostic evidence should the database administrator check FIRST?

  1. Check effective permission using EXECUTE AS, user/database role membership, ownership chain, DENY overrides, T-SQL GRANT statements and precise failed operation.
  2. Review sign-in error number and state, selected database, Entra token principal, group claims, CREATE USER scope, role membership and firewall reachability.
  3. Inspect SESSION_CONTEXT usage, predicate function logic, policy state, object permissions, execution plans and cross-tenant test accounts.
  4. Examine audit destinations, retention and access, captured event classes, Change Tracking version retention, CDC capture jobs, ledger digest verification and application expectations.

Explanation

Correct Answer

A:

Check effective permission using EXECUTE AS, user/database role membership, ownership chain, DENY overrides, T-SQL GRANT statements and precise failed operation. This is the discriminating system or configuration evidence for the case. GRANT on one schema or stored procedure does not automatically confer arbitrary permissions on all underlying cross-database resources. Corresponding approach: Grant database and object rights to explicit roles, distinguish server-level from database permissions, and avoid applying sysadmin or db_owner as a workaround for every access error.

Incorrect Answers

B:

Review sign-in error number and state, selected database, Entra token principal, group claims, CREATE USER scope, role membership and firewall reachability. These checks primarily test Diagnosing login failure and group-based access instead of the critical system behavior in this case. Examine: Check effective permission using EXECUTE AS, user/database role membership, ownership chain, DENY overrides, T-SQL GRANT statements and precise failed operation.

C:

Inspect SESSION_CONTEXT usage, predicate function logic, policy state, object permissions, execution plans and cross-tenant test accounts. These checks primarily test Row-level security and ownership predicates instead of the critical system behavior in this case. Examine: Check effective permission using EXECUTE AS, user/database role membership, ownership chain, DENY overrides, T-SQL GRANT statements and precise failed operation.

D:

Examine audit destinations, retention and access, captured event classes, Change Tracking version retention, CDC capture jobs, ledger digest verification and application expectations. These checks primarily test Azure SQL auditing ledger and change tracking distinctions instead of the critical system behavior in this case. Examine: Check effective permission using EXECUTE AS, user/database role membership, ownership chain, DENY overrides, T-SQL GRANT statements and precise failed operation.

Question 455

A pipeline retries a resource update after a policy denial and repeatedly fails because its region or SKU violates organizational guardrails. Which Azure SQL or SQL Server administrative approach is MOST appropriate?

  1. Configure SQL Server Agent schedules and job-step security on supported SQL Server or Managed Instance platforms, separating service credentials from the database data permissions they need.
  2. Configure SQL Server Agent notifications, operators and error handling so failed backups and maintenance tasks generate actionable alerts without leaking sensitive details.
  3. Monitor Azure resource deployments and resolve failed dependencies or policy denials using logs and change review, with safe rollback plans for data-bearing SQL resources.
  4. Use Az PowerShell or Azure CLI in authenticated deployment workflows with the minimum Azure RBAC rights and explicit resource/subscription selection to manage approved SQL resources.

Explanation

Correct Answer

C:

Monitor Azure resource deployments and resolve failed dependencies or policy denials using logs and change review, with safe rollback plans for data-bearing SQL resources. This is the supported administration mechanism for the described workload. Rolling back an infrastructure template is not identical to restoring committed database transactions, and destructive replacements require explicit protection. Verify with: Inspect deployment operation results, resource provider error codes, policy denials, what-if diffs, resource locks, template validation and database post-deploy health.

Incorrect Answers

A:

Configure SQL Server Agent schedules and job-step security on supported SQL Server or Managed Instance platforms, separating service credentials from the database data permissions they need. This addresses SQL Server Agent schedules and job ownership, not the controlling requirement here. SQL Server Agent is supported on relevant instance-level offerings but is not the native scheduling mechanism inside a standalone Azure SQL Database. Prefer: Monitor Azure resource deployments and resolve failed dependencies or policy denials using logs and change review, with safe rollback plans for data-bearing SQL resources.

B:

Configure SQL Server Agent notifications, operators and error handling so failed backups and maintenance tasks generate actionable alerts without leaking sensitive details. This addresses SQL Agent alerts operators and failure notifications, not the controlling requirement here. A green schedule and enabled operator are not evidence that email delivery or failure handling works unless the notification path is tested. Prefer: Monitor Azure resource deployments and resolve failed dependencies or policy denials using logs and change review, with safe rollback plans for data-bearing SQL resources.

D:

Use Az PowerShell or Azure CLI in authenticated deployment workflows with the minimum Azure RBAC rights and explicit resource/subscription selection to manage approved SQL resources. This addresses Azure PowerShell and CLI operations with scoped automation identity, not the controlling requirement here. Azure RBAC permissions to create an Azure SQL server do not imply arbitrary T-SQL data access to every user database. Prefer: Monitor Azure resource deployments and resolve failed dependencies or policy denials using logs and change review, with safe rollback plans for data-bearing SQL resources.

Question 456

A reporting query suddenly slows after a deploy, and Query Store shows a new high-read plan while the old plan served its stable parameter range. Which Azure SQL or SQL Server administrative approach is MOST appropriate?

  1. Create a workload baseline and enable appropriate Azure SQL monitoring, including database watcher where supported, to correlate query behavior with resource saturation over time.
  2. Use Query Store to compare query runtime and plan history, identify a genuine plan regression, and force a known suitable plan only with ongoing validation and rollback.
  3. Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU.
  4. Review actual execution plans, predicate sargability, cardinality estimates and suitable index designs before adding indexes or scaling hardware.

Explanation

Correct Answer

B:

Use Query Store to compare query runtime and plan history, identify a genuine plan regression, and force a known suitable plan only with ongoing validation and rollback. This is the supported administration mechanism for the described workload. Forcing a historical plan can mitigate a regression but does not make poor statistics or parameter sensitivity disappear and may fail after schema changes. Verify with: Inspect Query Store capture mode, runtime statistics, plan IDs, compatibility level, force-plan failure reasons and workload parameter distributions.

Incorrect Answers

A:

Create a workload baseline and enable appropriate Azure SQL monitoring, including database watcher where supported, to correlate query behavior with resource saturation over time. This addresses Database watcher and Azure SQL monitoring baseline, not the controlling requirement here. Database watcher and Azure Monitor observe resource activity but do not by themselves repair a bad execution plan or guarantee metrics are complete. Prefer: Use Query Store to compare query runtime and plan history, identify a genuine plan regression, and force a known suitable plan only with ongoing validation and rollback.

C:

Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU. This addresses Intelligent Insights and parameter-sensitive query analysis, not the controlling requirement here. Intelligent recommendations require contextual validation; SQL intelligent query processing features depend on engine version, database compatibility and workload shape. Prefer: Use Query Store to compare query runtime and plan history, identify a genuine plan regression, and force a known suitable plan only with ongoing validation and rollback.

D:

Review actual execution plans, predicate sargability, cardinality estimates and suitable index designs before adding indexes or scaling hardware. This addresses Execution plans cardinality and indexing improvements, not the controlling requirement here. A missing-index suggestion is a starting hypothesis, not a license to create every suggested index; SARGable predicates and accurate estimates matter. Prefer: Use Query Store to compare query runtime and plan history, identify a genuine plan regression, and force a known suitable plan only with ongoing validation and rollback.

Question 457

A customer lookup applies a function to an indexed date column and scans millions of rows despite a selective date parameter. Which observable result BEST proves the database administration requirement is satisfied?

  1. Performance improvements persist under measured production workloads and failed recommendations are reversed or disabled according to policy.
  2. Queries use appropriate access paths under representative parameters while maintenance and write overhead remain acceptable.
  3. A representative mix of small and large parameter executions achieves stable resource use, with intelligent feature effects monitored over time.
  4. Alerts fire for meaningful sustained database risk while log delivery and missing-metric gaps are independently observable.

Explanation

Correct Answer

B:

Queries use appropriate access paths under representative parameters while maintenance and write overhead remain acceptable. This is the observable database and application outcome rather than merely a saved setting. A missing-index suggestion is a starting hypothesis, not a license to create every suggested index; SARGable predicates and accurate estimates matter.

Incorrect Answers

A:

Performance improvements persist under measured production workloads and failed recommendations are reversed or disabled according to policy. This would validate Automatic tuning and intelligent query processing guardrails, but it does not establish the required outcome here. Verify instead: Queries use appropriate access paths under representative parameters while maintenance and write overhead remain acceptable.

C:

A representative mix of small and large parameter executions achieves stable resource use, with intelligent feature effects monitored over time. This would validate Intelligent Insights and parameter-sensitive query analysis, but it does not establish the required outcome here. Verify instead: Queries use appropriate access paths under representative parameters while maintenance and write overhead remain acceptable.

D:

Alerts fire for meaningful sustained database risk while log delivery and missing-metric gaps are independently observable. This would validate Azure Monitor alerts diagnostics and resource metrics, but it does not establish the required outcome here. Verify instead: Queries use appropriate access paths under representative parameters while maintenance and write overhead remain acceptable.

Question 458

A reporting team deploys email-address masking and claims that a compromised privileged account cannot recover the underlying plaintext. Which observable result BEST proves the database administration requirement is satisfied?

  1. Investigators obtain the intended activity or row-change evidence, while tampering or synchronization gaps are detected by the correct feature-specific controls.
  2. Each authorized tenant sees only its records through SQL and API queries, while unauthorized predicate bypass attempts return no rows.
  3. Clients establish the intended authentication method without insecure credential sharing, and failed sign-ins can be tied to the correct principal and database.
  4. Low-trust users receive suitably masked results while sensitive storage and access controls still enforce separately tested privacy requirements.

Explanation

Correct Answer

D:

Low-trust users receive suitably masked results while sensitive storage and access controls still enforce separately tested privacy requirements. This is the observable database and application outcome rather than merely a saved setting. Dynamic Data Masking is not encryption or a complete defense against inference; administrators and UNMASK principals can still access original values.

Incorrect Answers

A:

Investigators obtain the intended activity or row-change evidence, while tampering or synchronization gaps are detected by the correct feature-specific controls. This would validate Azure SQL auditing ledger and change tracking distinctions, but it does not establish the required outcome here. Verify instead: Low-trust users receive suitably masked results while sensitive storage and access controls still enforce separately tested privacy requirements.

B:

Each authorized tenant sees only its records through SQL and API queries, while unauthorized predicate bypass attempts return no rows. This would validate Row-level security and ownership predicates, but it does not establish the required outcome here. Verify instead: Low-trust users receive suitably masked results while sensitive storage and access controls still enforce separately tested privacy requirements.

C:

Clients establish the intended authentication method without insecure credential sharing, and failed sign-ins can be tied to the correct principal and database. This would validate SQL authentication versus Entra and managed-instance principals, but it does not establish the required outcome here. Verify instead: Low-trust users receive suitably masked results while sensitive storage and access controls still enforce separately tested privacy requirements.

Question 459

A procedure executes quickly for a small branch but spills tempdb when a national branch passes a very different parameter distribution. Which Azure SQL or SQL Server administrative approach is MOST appropriate?

  1. Use Extended Events sessions to capture targeted SQL events and wait/blocking evidence with bounded collection and a safe target rather than enabling excessive full-query traces in production.
  2. Schedule integrity checks, index and statistics maintenance based on measured fragmentation, modification rates and SLA rather than indiscriminately rebuilding every object each night.
  3. Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU.
  4. Diagnose blocked and deadlocked sessions using live DMVs and deadlock graphs, then fix transaction scope, indexing or isolation behavior with concurrency tests.

Explanation

Correct Answer

C:

Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU. This is the supported administration mechanism for the described workload. Intelligent recommendations require contextual validation; SQL intelligent query processing features depend on engine version, database compatibility and workload shape. Verify with: Inspect diagnostic recommendations, Query Store plan variability, runtime skew, parameter compilation, memory grant feedback and database compatibility settings.

Incorrect Answers

A:

Use Extended Events sessions to capture targeted SQL events and wait/blocking evidence with bounded collection and a safe target rather than enabling excessive full-query traces in production. This addresses Extended Events and workload-specific incident evidence, not the controlling requirement here. Extended Events supports focused diagnostic collection; an unfiltered high-volume session can itself increase production overhead and leak query text. Prefer: Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU.

B:

Schedule integrity checks, index and statistics maintenance based on measured fragmentation, modification rates and SLA rather than indiscriminately rebuilding every object each night. This addresses Index and statistics maintenance with targeted cadence, not the controlling requirement here. Small index fragmentation percentages do not automatically justify full rebuild; large rebuilds consume log space and can block workloads. Prefer: Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU.

D:

Diagnose blocked and deadlocked sessions using live DMVs and deadlock graphs, then fix transaction scope, indexing or isolation behavior with concurrency tests. This addresses Blocking deadlocks and isolation strategy, not the controlling requirement here. Raising an app timeout does not remove a blocking root cause; snapshot isolation can reduce some reader/writer contention but changes version-store behavior. Prefer: Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU.

Question 460

Azure SQL surfaces an Intelligent Insights regression alert and operators immediately double compute without reviewing the changed query plan. Which TWO complementary actions provide the appropriate response AND evidence to verify it? Select TWO.

  1. Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU.
  2. Alerts fire for meaningful sustained database risk while log delivery and missing-metric gaps are independently observable.
  3. Use Query Store to compare query runtime and plan history, identify a genuine plan regression, and force a known suitable plan only with ongoing validation and rollback.
  4. Inspect diagnostic recommendations, Query Store plan variability, runtime skew, parameter compilation, memory grant feedback and database compatibility settings.
  5. Inspect supported platform, classifier function, workload groups, CPU and memory caps, connection routing, database-scoped settings and compute metrics.

Explanation

Correct Answers

A:

Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU. This is the supported administration mechanism for the described workload. Intelligent recommendations require contextual validation; SQL intelligent query processing features depend on engine version, database compatibility and workload shape. Verify with: Inspect diagnostic recommendations, Query Store plan variability, runtime skew, parameter compilation, memory grant feedback and database compatibility settings. It supplies the implementation portion of this complementary answer.

D:

Inspect diagnostic recommendations, Query Store plan variability, runtime skew, parameter compilation, memory grant feedback and database compatibility settings. This is the discriminating system or configuration evidence for the case. Intelligent recommendations require contextual validation; SQL intelligent query processing features depend on engine version, database compatibility and workload shape. Corresponding approach: Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU. It supplies the evidence portion of this complementary answer.

Incorrect Answers

B:

Alerts fire for meaningful sustained database risk while log delivery and missing-metric gaps are independently observable. This choice pertains to Azure Monitor alerts diagnostics and resource metrics, not the needed response/evidence pair. Use: Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU. Check: Inspect diagnostic recommendations, Query Store plan variability, runtime skew, parameter compilation, memory grant feedback and database compatibility settings.

C:

Use Query Store to compare query runtime and plan history, identify a genuine plan regression, and force a known suitable plan only with ongoing validation and rollback. This choice pertains to Query Store plan regressions and forced plans, not the needed response/evidence pair. Use: Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU. Check: Inspect diagnostic recommendations, Query Store plan variability, runtime skew, parameter compilation, memory grant feedback and database compatibility settings.

E:

Inspect supported platform, classifier function, workload groups, CPU and memory caps, connection routing, database-scoped settings and compute metrics. This choice pertains to Resource Governor and scoped compute configuration, not the needed response/evidence pair. Use: Correlate Azure SQL Intelligent Insights or Query Store evidence with parameter sensitivity and memory grant patterns, selecting documented plan or query changes instead of blindly upgrading SKU. Check: Inspect diagnostic recommendations, Query Store plan variability, runtime skew, parameter compilation, memory grant feedback and database compatibility settings.

Administering Microsoft Azure SQL Solutions (DP-300) Practice Tests