AZ-305 Azure Business Continuity and Disaster Recovery Design 2 — Questions and Answers
Question 1: Your organization needs automated, policy-driven backup for all Azure VMs across 20 subscriptions from a single interface. Which Azure service provides this centralized management?
- Individual Recovery Services vaults per subscription
- Azure Backup Center with a Backup policy at management group scope (Correct answer)
- Azure Policy with DeployIfNotExists for backup
- Azure Site Recovery centralized console
Correct answer: Azure Backup Center with a Backup policy at management group scope
Azure Backup Center provides a unified view and governance console to monitor, manage, and enforce backup policies across multiple vaults and subscriptions.
Question 2: An Azure SQL Managed Instance needs to meet an RPO of 1 hour and an RTO of 4 hours for cross-region disaster recovery. Which feature should you configure?
- Automated backups with geo-restore only
- Auto-failover groups with a secondary in a paired region (Correct answer)
- Point-in-time restore within 35 days
- Geo-redundant backups only
Correct answer: Auto-failover groups with a secondary in a paired region
Auto-failover groups for SQL Managed Instance continuously replicate data to a secondary region and support automated or manual failover to meet RTO/RPO requirements.
Question 3: You need to design a backup strategy for Azure Blob Storage where accidental deletions can be recovered within 30 days. Which feature provides this at no additional storage cost for the retention period?
- Azure Backup for Blob Storage
- Azure Blob soft delete (Correct answer)
- Blob Storage versioning
- Object replication to a secondary account
Correct answer: Azure Blob soft delete
Blob soft delete retains deleted blobs for a configurable retention period and is built into Azure Blob Storage without requiring a separate backup vault.
Question 4: Which Azure Cosmos DB feature provides continuous backup and allows you to restore your database to any point in the past 30 days?
- Geo-redundant backup with 4-hour snapshot intervals
- Continuous backup mode with point-in-time restore (PITR) (Correct answer)
- Manual backup export to Storage Account
- Multi-region writes with regional failover
Correct answer: Continuous backup mode with point-in-time restore (PITR)
Cosmos DB Continuous backup mode captures changes continuously allowing point-in-time restore to any second within the past 30 days.
Question 5: Your organization's RPO for a critical application is zero — no data can be lost. Which Azure SQL Database deployment option meets this requirement?
- Active geo-replication with async replication to secondary
- Azure SQL Database Business Critical tier with zone-redundant configuration (Correct answer)
- General Purpose tier with GRS backup
- Hyperscale tier with geo-replication
Correct answer: Azure SQL Database Business Critical tier with zone-redundant configuration
SQL Database Business Critical uses synchronous replication across Availability Zones so all committed transactions are written to multiple nodes before acknowledgment, ensuring RPO=0.
Question 6: You need to design a recovery solution for an AKS cluster where the entire cluster must be recoverable in a new region within 2 hours. What should your DR plan include?
- Azure Site Recovery for AKS nodes
- GitOps with infrastructure-as-code (Bicep/Terraform) + Azure Backup for persistent volumes (Correct answer)
- AKS node pool snapshots only
- Azure Container Registry geo-replication alone
Correct answer: GitOps with infrastructure-as-code (Bicep/Terraform) + Azure Backup for persistent volumes
Storing AKS manifests and IaC in a repo (GitOps) allows rapid cluster rebuild while Azure Backup for persistent volumes restores stateful data to meet a 2-hour RTO.
AZ-305 Azure Business Continuity and Disaster Recovery Design 2
Your organization needs automated, policy-driven backup for all Azure VMs across 20 subscriptions from a single interface.
Which Azure service provides this centralized management?