Question 370
The planned architecture is: Select zone-redundant storage (ZRS) for supported blob workloads in a suitable region. Workload context: A storage account must survive a single availability-zone outage while data continues serving reads and writes within the primary region. Which acceptance test demonstrates that the required behavior works?
- Verify redundancy setting, secondary-region replication status and a documented storage failover test.
- Simulate zonal failure conditions and verify primary-region access remains available as designed.
- Delete a test blob and restore it during the permitted soft-delete interval.
- Read a test object from the secondary endpoint and confirm writes remain limited to the primary.
Explanation
Correct Answer
B:This observation directly verifies the intended design: Simulate zonal failure conditions and verify primary-region access remains available as designed. The architecture being tested is: Select zone-redundant storage (ZRS) for supported blob workloads in a suitable region. The original symptom was: A single datacenter failure makes locally redundant blob data temporarily unavailable.
Incorrect Answers
A:The alternative test targets: Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations. The scenario's actual proposed remedy is: Select zone-redundant storage (ZRS) for supported blob workloads in a suitable region. Verify that one by: Simulate zonal failure conditions and verify primary-region access remains available as designed.
C:That observation pertains to a separate failure: A developer's accidental deletion destroys the only live blob immediately. Its cause is: Soft delete retention was not enabled or its interval was too short. It does not confirm the result of this design. The direct proof would be: Simulate zonal failure conditions and verify primary-region access remains available as designed.
D:The alternative test targets: Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint. The scenario's actual proposed remedy is: Select zone-redundant storage (ZRS) for supported blob workloads in a suitable region. Verify that one by: Simulate zonal failure conditions and verify primary-region access remains available as designed.
Question 371
The customer states: A storage account must survive a single availability-zone outage while data continues serving reads and writes within the primary region. An incident reveals: A single datacenter failure makes locally redundant blob data temporarily unavailable. What cause best accounts for this evidence?
- ZRS was selected without the needed geographical disaster-recovery replica.
- Geo-redundancy alone does not expose a read-enabled secondary endpoint.
- Local redundancy did not distribute synchronous copies across availability zones.
- Soft delete retention was not enabled or its interval was too short.
Explanation
Correct Answer
C:This is the failure mechanism rather than an incidental symptom: Local redundancy did not distribute synchronous copies across availability zones. It accounts for: A single datacenter failure makes locally redundant blob data temporarily unavailable. The architectural repair is: Select zone-redundant storage (ZRS) for supported blob workloads in a suitable region.
Incorrect Answers
A:The alternative weakness is: ZRS was selected without the needed geographical disaster-recovery replica. Its associated failure is: Zone-resilient storage lacks any copy outside the primary region. Neither explains the present observation: A single datacenter failure makes locally redundant blob data temporarily unavailable. The direct cause here is: Local redundancy did not distribute synchronous copies across availability zones.
B:This cause would explain a different symptom: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption. The mechanism for that event is: Geo-redundancy alone does not expose a read-enabled secondary endpoint. Here the stated symptom is: A single datacenter failure makes locally redundant blob data temporarily unavailable. Its cause is: Local redundancy did not distribute synchronous copies across availability zones.
D:The alternative weakness is: Soft delete retention was not enabled or its interval was too short. Its associated failure is: A developer's accidental deletion destroys the only live blob immediately. Neither explains the present observation: A single datacenter failure makes locally redundant blob data temporarily unavailable. The direct cause here is: Local redundancy did not distribute synchronous copies across availability zones.
Question 372
Workload context: A storage account must survive a single availability-zone outage while data continues serving reads and writes within the primary region. The implemented remedy is: Select zone-redundant storage (ZRS) for supported blob workloads in a suitable region. Which ongoing practice most specifically prevents recurrence of this failure: A single datacenter failure makes locally redundant blob data temporarily unavailable.?
- Monitor secondary read availability and potential lag before routing critical reports.
- Review regional failover RPO assumptions because secondary replication is asynchronous.
- Test blob recovery and review retention settings when datasets change risk tiers.
- Check regional ZRS support and workload availability after storage configuration changes.
Explanation
Correct Answer
D:The key follow-up control is: Check regional ZRS support and workload availability after storage configuration changes. It avoids recurrence of the scenario in which: A single datacenter failure makes locally redundant blob data temporarily unavailable. It addresses: Local redundancy did not distribute synchronous copies across availability zones.
Incorrect Answers
A:The proposed control focuses on: Geo-redundancy alone does not expose a read-enabled secondary endpoint. For the design in the question, recurrence comes from: Local redundancy did not distribute synchronous copies across availability zones. A precise prevention step is: Check regional ZRS support and workload availability after storage configuration changes.
B:That safeguard manages another risk: ZRS was selected without the needed geographical disaster-recovery replica. Its scenario is: Zone-resilient storage lacks any copy outside the primary region. The present recurring risk is: Local redundancy did not distribute synchronous copies across availability zones. The proper ongoing control is: Check regional ZRS support and workload availability after storage configuration changes.
C:This is a reasonable safeguard for a different fault: A developer's accidental deletion destroys the only live blob immediately. That different mechanism is: Soft delete retention was not enabled or its interval was too short. The original incident here instead arises from: Local redundancy did not distribute synchronous copies across availability zones. The directly relevant safeguard is: Check regional ZRS support and workload availability after storage configuration changes.
Question 373
A solution architect is reviewing a workload: A critical document archive needs zone fault tolerance in its main region plus an asynchronous copy in a geographically separate region. The observed incident is: Zone-resilient storage lacks any copy outside the primary region. Which architecture choice most directly removes the identified weakness?
- Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint.
- Select zone-redundant storage (ZRS) for supported blob workloads in a suitable region.
- Apply an appropriate Blob archive access tier for eligible blob objects, accounting for rehydration time.
- Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations.
Explanation
Correct Answer
D:This option addresses the actual design defect: ZRS was selected without the needed geographical disaster-recovery replica. The correction is: Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations. Confirm the outcome with: Verify redundancy setting, secondary-region replication status and a documented storage failover test.
Incorrect Answers
A:That design instead addresses another observed condition: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption. Its technical cause is: Geo-redundancy alone does not expose a read-enabled secondary endpoint. The current workload exhibits: Zone-resilient storage lacks any copy outside the primary region. Its targeted remedy is: Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations.
B:This choice mitigates an alternative scenario, where: A single datacenter failure makes locally redundant blob data temporarily unavailable. The underlying issue there is: Local redundancy did not distribute synchronous copies across availability zones. Here the root issue is: ZRS was selected without the needed geographical disaster-recovery replica. Choose the corresponding action: Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations.
C:The option belongs to a different failure mechanism: Archive access tier requires rehydration and is not an online hot object endpoint. That situation exhibits: Audit retrieval fails when an app expects instant downloads from archived objects. For the stated case, the remedy is: Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations.
Question 374
An architect proposes this change: Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations. The workload context is: A critical document archive needs zone fault tolerance in its main region plus an asynchronous copy in a geographically separate region. Which evidence would most directly validate the change?
- Verify redundancy setting, secondary-region replication status and a documented storage failover test.
- Simulate zonal failure conditions and verify primary-region access remains available as designed.
- Read a test object from the secondary endpoint and confirm writes remain limited to the primary.
- Rehydrate a test archive blob and confirm retrieval follows the supported priority and completion behavior.
Explanation
Correct Answer
A:This observation directly verifies the intended design: Verify redundancy setting, secondary-region replication status and a documented storage failover test. The architecture being tested is: Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations. The original symptom was: Zone-resilient storage lacks any copy outside the primary region.
Incorrect Answers
B:That observation pertains to a separate failure: A single datacenter failure makes locally redundant blob data temporarily unavailable. Its cause is: Local redundancy did not distribute synchronous copies across availability zones. It does not confirm the result of this design. The direct proof would be: Verify redundancy setting, secondary-region replication status and a documented storage failover test.
C:The alternative test targets: Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint. The scenario's actual proposed remedy is: Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations. Verify that one by: Verify redundancy setting, secondary-region replication status and a documented storage failover test.
D:This check validates a different workload: Rehydrate a test archive blob and confirm retrieval follows the supported priority and completion behavior. Its associated design is: Apply an appropriate Blob archive access tier for eligible blob objects, accounting for rehydration time. The required acceptance test here is: Verify redundancy setting, secondary-region replication status and a documented storage failover test.
Question 375
During architecture troubleshooting, a team reports: Zone-resilient storage lacks any copy outside the primary region. Context: A critical document archive needs zone fault tolerance in its main region plus an asynchronous copy in a geographically separate region. Which underlying design mistake explains the observed behavior most precisely?
- ZRS was selected without the needed geographical disaster-recovery replica.
- Archive access tier requires rehydration and is not an online hot object endpoint.
- Geo-redundancy alone does not expose a read-enabled secondary endpoint.
- Local redundancy did not distribute synchronous copies across availability zones.
Explanation
Correct Answer
A:The incident is explained by: ZRS was selected without the needed geographical disaster-recovery replica. The reported symptom is: Zone-resilient storage lacks any copy outside the primary region. The corresponding design fix is: Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations.
Incorrect Answers
B:The proposed diagnosis fits another scenario: Archive access tier requires rehydration and is not an online hot object endpoint. It would typically be reflected by: Audit retrieval fails when an app expects instant downloads from archived objects. The current evidence instead supports: ZRS was selected without the needed geographical disaster-recovery replica.
C:The alternative weakness is: Geo-redundancy alone does not expose a read-enabled secondary endpoint. Its associated failure is: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption. Neither explains the present observation: Zone-resilient storage lacks any copy outside the primary region. The direct cause here is: ZRS was selected without the needed geographical disaster-recovery replica.
D:This cause would explain a different symptom: A single datacenter failure makes locally redundant blob data temporarily unavailable. The mechanism for that event is: Local redundancy did not distribute synchronous copies across availability zones. Here the stated symptom is: Zone-resilient storage lacks any copy outside the primary region. Its cause is: ZRS was selected without the needed geographical disaster-recovery replica.
Question 376
The design change is: Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations. The original failure was: Zone-resilient storage lacks any copy outside the primary region. Which ongoing control best prevents recurrence of the same root cause?
- Monitor secondary read availability and potential lag before routing critical reports.
- Review regional failover RPO assumptions because secondary replication is asynchronous.
- Review retrieval SLAs, early deletion charges and redundancy compatibility for archive storage.
- Check regional ZRS support and workload availability after storage configuration changes.
Explanation
Correct Answer
B:This is an ongoing protection specific to the fault: Review regional failover RPO assumptions because secondary replication is asynchronous. The recurrence risk is: ZRS was selected without the needed geographical disaster-recovery replica. It should be checked using: Verify redundancy setting, secondary-region replication status and a documented storage failover test.
Incorrect Answers
A:That safeguard manages another risk: Geo-redundancy alone does not expose a read-enabled secondary endpoint. Its scenario is: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption. The present recurring risk is: ZRS was selected without the needed geographical disaster-recovery replica. The proper ongoing control is: Review regional failover RPO assumptions because secondary replication is asynchronous.
C:The proposed control focuses on: Archive access tier requires rehydration and is not an online hot object endpoint. For the design in the question, recurrence comes from: ZRS was selected without the needed geographical disaster-recovery replica. A precise prevention step is: Review regional failover RPO assumptions because secondary replication is asynchronous.
D:That safeguard manages another risk: Local redundancy did not distribute synchronous copies across availability zones. Its scenario is: A single datacenter failure makes locally redundant blob data temporarily unavailable. The present recurring risk is: ZRS was selected without the needed geographical disaster-recovery replica. The proper ongoing control is: Review regional failover RPO assumptions because secondary replication is asynchronous.
Question 377
A design workshop has this requirement: A read-only global reporting service must access a secondary-region blob replica even before an official account failover. Operators currently observe: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption. Select the ONE design remedy that best addresses the root cause.
- Configure supported Azure Cosmos DB multi-region writes with an explicit conflict resolution strategy and appropriate consistency.
- Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint.
- Select geo-zone-redundant storage (GZRS) for eligible blob accounts and define regional failover expectations.
- Select zone-redundant storage (ZRS) for supported blob workloads in a suitable region.
Explanation
Correct Answer
B:The targeted implementation is: Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint. The problem is not generic resource availability: Geo-redundancy alone does not expose a read-enabled secondary endpoint. Verify the result by: Read a test object from the secondary endpoint and confirm writes remain limited to the primary.
Incorrect Answers
A:This choice mitigates an alternative scenario, where: An overseas region must send writes to a remote single-write region despite local performance targets. The underlying issue there is: Multi-region write capability and conflict resolution were not designed for the active-active requirement. Here the root issue is: Geo-redundancy alone does not expose a read-enabled secondary endpoint. Choose the corresponding action: Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint.
C:That design instead addresses another observed condition: Zone-resilient storage lacks any copy outside the primary region. Its technical cause is: ZRS was selected without the needed geographical disaster-recovery replica. The current workload exhibits: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption. Its targeted remedy is: Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint.
D:This choice mitigates an alternative scenario, where: A single datacenter failure makes locally redundant blob data temporarily unavailable. The underlying issue there is: Local redundancy did not distribute synchronous copies across availability zones. Here the root issue is: Geo-redundancy alone does not expose a read-enabled secondary endpoint. Choose the corresponding action: Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint.
Question 378
The planned architecture is: Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint. Workload context: A read-only global reporting service must access a secondary-region blob replica even before an official account failover. Which acceptance test demonstrates that the required behavior works?
- Verify redundancy setting, secondary-region replication status and a documented storage failover test.
- Read a test object from the secondary endpoint and confirm writes remain limited to the primary.
- Simulate zonal failure conditions and verify primary-region access remains available as designed.
- Write from two configured regions and verify cross-region propagation and conflict outcomes under controlled concurrent updates.
Explanation
Correct Answer
B:The decisive evidence is: Read a test object from the secondary endpoint and confirm writes remain limited to the primary. This measures the mechanism of the planned change, not an unrelated Azure service: Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint.
Incorrect Answers
A:That observation pertains to a separate failure: Zone-resilient storage lacks any copy outside the primary region. Its cause is: ZRS was selected without the needed geographical disaster-recovery replica. It does not confirm the result of this design. The direct proof would be: Read a test object from the secondary endpoint and confirm writes remain limited to the primary.
C:This check validates a different workload: Simulate zonal failure conditions and verify primary-region access remains available as designed. Its associated design is: Select zone-redundant storage (ZRS) for supported blob workloads in a suitable region. The required acceptance test here is: Read a test object from the secondary endpoint and confirm writes remain limited to the primary.
D:That observation pertains to a separate failure: An overseas region must send writes to a remote single-write region despite local performance targets. Its cause is: Multi-region write capability and conflict resolution were not designed for the active-active requirement. It does not confirm the result of this design. The direct proof would be: Read a test object from the secondary endpoint and confirm writes remain limited to the primary.
Question 379
The customer states: A read-only global reporting service must access a secondary-region blob replica even before an official account failover. An incident reveals: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption. What cause best accounts for this evidence?
- Geo-redundancy alone does not expose a read-enabled secondary endpoint.
- Local redundancy did not distribute synchronous copies across availability zones.
- ZRS was selected without the needed geographical disaster-recovery replica.
- Multi-region write capability and conflict resolution were not designed for the active-active requirement.
Explanation
Correct Answer
A:This is the failure mechanism rather than an incidental symptom: Geo-redundancy alone does not expose a read-enabled secondary endpoint. It accounts for: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption. The architectural repair is: Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint.
Incorrect Answers
B:The alternative weakness is: Local redundancy did not distribute synchronous copies across availability zones. Its associated failure is: A single datacenter failure makes locally redundant blob data temporarily unavailable. Neither explains the present observation: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption. The direct cause here is: Geo-redundancy alone does not expose a read-enabled secondary endpoint.
C:This cause would explain a different symptom: Zone-resilient storage lacks any copy outside the primary region. The mechanism for that event is: ZRS was selected without the needed geographical disaster-recovery replica. Here the stated symptom is: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption. Its cause is: Geo-redundancy alone does not expose a read-enabled secondary endpoint.
D:The proposed diagnosis fits another scenario: Multi-region write capability and conflict resolution were not designed for the active-active requirement. It would typically be reflected by: An overseas region must send writes to a remote single-write region despite local performance targets. The current evidence instead supports: Geo-redundancy alone does not expose a read-enabled secondary endpoint.
Question 380
Workload context: A read-only global reporting service must access a secondary-region blob replica even before an official account failover. The implemented remedy is: Use read-access geo-redundant storage (RA-GRS or RA-GZRS) when supported, with app logic for the secondary endpoint. Which ongoing practice most specifically prevents recurrence of this failure: Secondary-region clients cannot read replicas from a standard GRS account during primary-region disruption.?
- Monitor secondary read availability and potential lag before routing critical reports.
- Review regional failover RPO assumptions because secondary replication is asynchronous.
- Check regional ZRS support and workload availability after storage configuration changes.
- Monitor replication and conflict metrics, documenting bounded consistency tradeoffs.
Explanation
Correct Answer
A:This is an ongoing protection specific to the fault: Monitor secondary read availability and potential lag before routing critical reports. The recurrence risk is: Geo-redundancy alone does not expose a read-enabled secondary endpoint. It should be checked using: Read a test object from the secondary endpoint and confirm writes remain limited to the primary.
Incorrect Answers
B:The proposed control focuses on: ZRS was selected without the needed geographical disaster-recovery replica. For the design in the question, recurrence comes from: Geo-redundancy alone does not expose a read-enabled secondary endpoint. A precise prevention step is: Monitor secondary read availability and potential lag before routing critical reports.
C:That safeguard manages another risk: Local redundancy did not distribute synchronous copies across availability zones. Its scenario is: A single datacenter failure makes locally redundant blob data temporarily unavailable. The present recurring risk is: Geo-redundancy alone does not expose a read-enabled secondary endpoint. The proper ongoing control is: Monitor secondary read availability and potential lag before routing critical reports.
D:This is a reasonable safeguard for a different fault: An overseas region must send writes to a remote single-write region despite local performance targets. That different mechanism is: Multi-region write capability and conflict resolution were not designed for the active-active requirement. The original incident here instead arises from: Geo-redundancy alone does not expose a read-enabled secondary endpoint. The directly relevant safeguard is: Monitor secondary read availability and potential lag before routing critical reports.
Designing Microsoft Azure Infrastructure Solutions (AZ-305) Practice Tests