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Microsoft AZ-305 Practice Test 51

Question 500

An architecture proposal for cosmos db recovery and regional strategy relies on the following approach: Treat geo-replication as an immutable historic container snapshot. Which specific failure or mismatch should the design reviewer identify?

  1. Live replicas may contain the same erroneous write.
  2. Deletes may propagate across replicated live state.
  3. Default resolution can pick one winner and may not preserve all conflicts.
  4. Single-region concentration exposes requests to complete regional outage.

Explanation

Correct Answer

B:

Treat geo-replication as an immutable historic container snapshot. Deletes may propagate across replicated live state.

Incorrect Answers

A:

This concern applies to Use only geo-replicated live databases as the sole immutable recovery source. in another design solutions for backup and disaster recovery design. The current proposal specifically fails because deletes may propagate across replicated live state.

C:

That assessment refers to the separate proposal 'Assume multi-write means every conflicting version is retained automatically forever.' not to the recommendation under review. Here, Deletes may propagate across replicated live state.

D:

That assessment refers to the separate proposal 'Put all readers and writes into one regional endpoint without failover design.' not to the recommendation under review. Here, Deletes may propagate across replicated live state.

Question 501

Acceptance testing must establish the following operational result: Successful recovery confirms backup mode and procedures. Which verification action most directly establishes that outcome?

  1. Inject a test bad update and restore from a pre-change backup.
  2. Submit controlled competing updates and inspect resolved document state.
  3. Simulate a supported regional read routing test.
  4. Restore a test dataset after controlled logical deletion using configured recovery mode.

Explanation

Correct Answer

D:

Successful recovery confirms backup mode and procedures.

Incorrect Answers

A:

This is a test for An operations team expects active geo-replication to protect against a malicious data update. The requirement here is instead demonstrated by restore a test dataset after controlled logical deletion using configured recovery mode.

B:

That verification addresses the different requirement: A globally writable Cosmos database needs deterministic conflict behavior during multi-region writes. It does not directly establish successful recovery confirms backup mode and procedures.

C:

That verification addresses the different requirement: A mission-critical Cosmos DB account needs read availability from multiple regions. It does not directly establish successful recovery confirms backup mode and procedures.

Question 502

A globally writable Cosmos database needs deterministic conflict behavior during multi-region writes. Which Azure architecture choice best meets this requirement?

  1. Put all readers and writes into one regional endpoint without failover design.
  2. Assume multi-write means every conflicting version is retained automatically forever.
  3. Choose a supported conflict resolution policy consistent with data semantics.
  4. Treat geo-replication as an immutable historic container snapshot.

Explanation

Correct Answer

C:

Concurrent writes need explicit conflict-handling strategy.

Incorrect Answers

A:

Single-region concentration exposes requests to complete regional outage. In the present requirement, a globally writable Cosmos database needs deterministic conflict behavior during multi-region writes. The needed design instead works because concurrent writes need explicit conflict-handling strategy.

B:

Default resolution can pick one winner and may not preserve all conflicts. This proposal contradicts the stated architecture constraint.

D:

Deletes may propagate across replicated live state. In the present requirement, a globally writable Cosmos database needs deterministic conflict behavior during multi-region writes. The needed design instead works because concurrent writes need explicit conflict-handling strategy.

Question 503

An architecture proposal for cosmos db recovery and regional strategy relies on the following approach: Assume multi-write means every conflicting version is retained automatically forever. Which specific failure or mismatch should the design reviewer identify?

  1. RTO does not define how much committed data may be lost.
  2. Single-region concentration exposes requests to complete regional outage.
  3. Default resolution can pick one winner and may not preserve all conflicts.
  4. Deletes may propagate across replicated live state.

Explanation

Correct Answer

C:

Assume multi-write means every conflicting version is retained automatically forever. Default resolution can pick one winner and may not preserve all conflicts.

Incorrect Answers

A:

This concern applies to Interpret one-hour recovery time as permission to lose one hour of data. in another design solutions for backup and disaster recovery design. The current proposal specifically fails because default resolution can pick one winner and may not preserve all conflicts.

B:

That assessment refers to the separate proposal 'Put all readers and writes into one regional endpoint without failover design.' not to the recommendation under review. Here, Default resolution can pick one winner and may not preserve all conflicts.

D:

That assessment refers to the separate proposal 'Treat geo-replication as an immutable historic container snapshot.' not to the recommendation under review. Here, Default resolution can pick one winner and may not preserve all conflicts.

Question 504

Acceptance testing must establish the following operational result: A conflict test proves the policy matches business intent. Which verification action most directly establishes that outcome?

  1. Submit controlled competing updates and inspect resolved document state.
  2. Measure last recoverable transaction and service restoration time in a drill.
  3. Simulate a supported regional read routing test.
  4. Restore a test dataset after controlled logical deletion using configured recovery mode.

Explanation

Correct Answer

A:

A conflict test proves the policy matches business intent.

Incorrect Answers

B:

This is a test for A payments service permits fifteen minutes of data loss but must recover within one hour. The requirement here is instead demonstrated by submit controlled competing updates and inspect resolved document state.

C:

That verification addresses the different requirement: A mission-critical Cosmos DB account needs read availability from multiple regions. It does not directly establish a conflict test proves the policy matches business intent.

D:

That verification addresses the different requirement: An application owner deletes a Cosmos DB container and expects live geo replicas to restore it. It does not directly establish a conflict test proves the policy matches business intent.

Question 505

A storage account must recover overwritten blobs and accidentally deleted containers. Which TWO data-protection features meet these different failure modes? (Select TWO.)

  1. Enable container or blob soft delete with an adequate retention period.
  2. Keep only geo-replicated current objects and assume updates cannot propagate.
  3. Disable all recovery protections once the account uses ZRS.
  4. Use only an NSG and assume it rolls back blob content.
  5. Enable suitable blob versioning or point-in-time restore for overwritten content.

Explanation

Correct Answers

A:

Deleted objects can be recovered within the configured period.

E:

Previous object versions can provide earlier data state.

Incorrect Answers

B:

Logical deletes and overwrites may replicate.

C:

Zone replication does not replace version history.

D:

Network filtering has no historical restore function.

Question 506

An architecture proposal for storage recovery soft delete and versions relies on the following approach: Depend only on current-blob geo replication to undo every overwrite. Which specific failure or mismatch should the design reviewer identify?

  1. Network policy does not provide deleted-object recovery points.
  2. Replication can copy the bad current version to secondary.
  3. Live replicas may contain the same erroneous write.
  4. Point-in-time restore is feature- and account-dependent.

Explanation

Correct Answer

B:

Depend only on current-blob geo replication to undo every overwrite. Replication can copy the bad current version to secondary.

Incorrect Answers

A:

That assessment refers to the separate proposal 'Use only an NSG to prevent accidental storage object deletion.' not to the recommendation under review. Here, Replication can copy the bad current version to secondary.

C:

This concern applies to Use only geo-replicated live databases as the sole immutable recovery source. in another design solutions for backup and disaster recovery design. The current proposal specifically fails because replication can copy the bad current version to secondary.

D:

That assessment refers to the separate proposal 'Assume arbitrary storage accounts can roll back any point without prerequisites.' not to the recommendation under review. Here, Replication can copy the bad current version to secondary.

Question 507

Acceptance testing must establish the following operational result: Byte equality proves the prior content is recoverable. Which verification action most directly establishes that outcome?

  1. Revert controlled changes and check object state across a test range.
  2. Inject a test bad update and restore from a pre-change backup.
  3. Delete a nonproduction container and test restoring it.
  4. Restore an earlier test version and compare its checksum.

Explanation

Correct Answer

D:

Byte equality proves the prior content is recoverable.

Incorrect Answers

A:

That verification addresses the different requirement: An enterprise wants point-in-time restoration of a large block-blob application dataset. It does not directly establish byte equality proves the prior content is recoverable.

B:

This is a test for An operations team expects active geo-replication to protect against a malicious data update. The requirement here is instead demonstrated by restore an earlier test version and compare its checksum.

C:

That verification addresses the different requirement: A user deletes a blob container accidentally and must recover within the service retention period. It does not directly establish byte equality proves the prior content is recoverable.

Question 508

A user deletes a blob container accidentally and must recover within the service retention period. Which Azure architecture choice best meets this requirement?

  1. Depend only on current-blob geo replication to undo every overwrite.
  2. Assume arbitrary storage accounts can roll back any point without prerequisites.
  3. Use only an NSG to prevent accidental storage object deletion.
  4. Configure supported blob or container soft delete with an appropriate retention window.

Explanation

Correct Answer

D:

Soft delete preserves deleted data temporarily for restoration.

Incorrect Answers

A:

Replication can copy the bad current version to secondary. In the present requirement, a user deletes a blob container accidentally and must recover within the service retention period. The needed design instead works because soft delete preserves deleted data temporarily for restoration.

B:

Point-in-time restore is feature- and account-dependent. In the present requirement, a user deletes a blob container accidentally and must recover within the service retention period. The needed design instead works because soft delete preserves deleted data temporarily for restoration.

C:

Network policy does not provide deleted-object recovery points. This proposal contradicts the stated architecture constraint.

Question 509

An architecture proposal for storage recovery soft delete and versions relies on the following approach: Use only an NSG to prevent accidental storage object deletion. Which specific failure or mismatch should the design reviewer identify?

  1. Network policy does not provide deleted-object recovery points.
  2. Point-in-time restore is feature- and account-dependent.
  3. Replication can copy the bad current version to secondary.
  4. RTO does not define how much committed data may be lost.

Explanation

Correct Answer

A:

Use only an NSG to prevent accidental storage object deletion. Network policy does not provide deleted-object recovery points.

Incorrect Answers

B:

That assessment refers to the separate proposal 'Assume arbitrary storage accounts can roll back any point without prerequisites.' not to the recommendation under review. Here, Network policy does not provide deleted-object recovery points.

C:

That assessment refers to the separate proposal 'Depend only on current-blob geo replication to undo every overwrite.' not to the recommendation under review. Here, Network policy does not provide deleted-object recovery points.

D:

This concern applies to Interpret one-hour recovery time as permission to lose one hour of data. in another design solutions for backup and disaster recovery design. The current proposal specifically fails because network policy does not provide deleted-object recovery points.

Question 510

Acceptance testing must establish the following operational result: The exercise confirms recovery scope and retention. Which verification action most directly establishes that outcome?

  1. Delete a nonproduction container and test restoring it.
  2. Restore an earlier test version and compare its checksum.
  3. Revert controlled changes and check object state across a test range.
  4. Measure last recoverable transaction and service restoration time in a drill.

Explanation

Correct Answer

A:

The exercise confirms recovery scope and retention.

Incorrect Answers

B:

That verification addresses the different requirement: A user overwrites a blob and needs the preceding value from yesterday. It does not directly establish the exercise confirms recovery scope and retention.

C:

That verification addresses the different requirement: An enterprise wants point-in-time restoration of a large block-blob application dataset. It does not directly establish the exercise confirms recovery scope and retention.

D:

This is a test for A payments service permits fifteen minutes of data loss but must recover within one hour. The requirement here is instead demonstrated by delete a nonproduction container and test restoring it.

Designing Microsoft Azure Infrastructure Solutions (AZ-305) Practice Tests