AZ-304 Azure Business Continuity and Disaster Recovery 2 — Questions and Answers
Question 1: Which Azure feature protects Azure Blob Storage data from accidental deletion by retaining deleted data for a configurable retention period?
- Immutable Storage
- Blob Versioning
- Soft Delete for Blobs (Correct answer)
- Lifecycle Management
Correct answer: Soft Delete for Blobs
Soft Delete for Blobs retains deleted blobs and snapshots for a configurable period (1–365 days), allowing recovery from accidental or malicious deletions.
Question 2: Azure Site Recovery replicates Azure VMs to a secondary region. What is the typical RPO target achievable with ASR for Azure VM replication?
- Zero (synchronous replication)
- Less than 15 seconds (Correct answer)
- Less than 1 minute
- Approximately 15 minutes crash-consistent
Correct answer: Less than 15 seconds
ASR for Azure VMs targets an RPO of less than 15 seconds for app-consistent recovery points, using continuous replication with very frequent checkpoint intervals.
Question 3: What type of Azure Site Recovery recovery point captures the application state (in-memory data and pending transactions) in addition to disk state?
- Crash-consistent recovery point
- App-consistent recovery point (Correct answer)
- File-system consistent recovery point
- Incremental recovery point
Correct answer: App-consistent recovery point
App-consistent recovery points use VSS (Volume Shadow Copy Service) to flush in-memory data and pending I/O, ensuring database and application consistency at the recovery point.
Question 4: An organization needs to back up on-premises servers and Azure VMs to a centralized vault. Which Azure service manages this?
- Azure Blob Storage with LRS
- Azure Backup with Recovery Services Vault (Correct answer)
- Azure Site Recovery only
- Azure Storage Archive tier
Correct answer: Azure Backup with Recovery Services Vault
Azure Backup with Recovery Services Vault provides centralized backup management for Azure VMs, on-premises servers, SQL Server, SAP HANA, and Azure Files.
Question 5: Which Azure Backup feature prevents backup data from being deleted even if the vault is accidentally deleted by an unauthorized user?
- Geo-Redundant Storage backup
- Soft Delete for Azure Backup
- Resource Lock on vault
- Multi-User Authorization (MUA) (Correct answer)
Correct answer: Multi-User Authorization (MUA)
Multi-User Authorization (MUA) for Azure Backup requires a second approver from a designated Resource Guard to perform destructive backup operations, protecting against insider threats.
Question 6: A solution requires that in a regional outage, the application automatically fails over to a secondary region with no manual intervention. Which design pattern achieves this?
- Passive cold standby with manual runbook
- Active-passive with Azure Traffic Manager health probes
- Active-active with Azure Front Door and auto-failover groups (Correct answer)
- Cross-region backup restore only
Correct answer: Active-active with Azure Front Door and auto-failover groups
Active-active with Azure Front Door and SQL auto-failover groups enables automatic traffic redirection and database failover without human intervention when a region becomes unavailable.
AZ-304 Azure Business Continuity and Disaster Recovery 2
Which Azure feature protects Azure Blob Storage data from accidental deletion by retaining deleted data for a configurable retention period?