Disaster recovery strategies in Azure - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding Azure Site Recovery (ASR)

Which statement best describes the primary function of Azure Site Recovery in disaster recovery?

A It replicates virtual machines to a secondary region to enable failover during outages.

B It automatically backs up databases to Azure Blob Storage every hour.

C It monitors network traffic to prevent DDoS attacks during disasters.

D It encrypts data at rest to protect against unauthorized access.

💡 Hint

Think about how Azure helps keep applications running when a whole data center fails.

Azure Site Recovery replicates workloads to a secondary location, allowing failover if the primary site is unavailable.

❓ Architecture

intermediate

Choosing the right Azure disaster recovery architecture

You need to design a disaster recovery solution for a critical web app hosted in Azure. The app must recover within 15 minutes after a regional outage. Which Azure feature combination best meets this requirement?

A Use Azure Backup with geo-redundant storage and manual VM redeployment.

B Use Azure Blob Storage with locally redundant storage and scheduled snapshots.

C Deploy the app in two Azure regions with Azure Traffic Manager and Azure Site Recovery.

D Configure Azure Firewall with automatic failover and Azure Monitor alerts.

💡 Hint

Consider both replication and traffic routing for fast recovery.

Deploying in two regions with Traffic Manager and Site Recovery enables quick failover and minimal downtime.

❓ security

advanced

Securing disaster recovery data in Azure

During disaster recovery, which Azure feature ensures that replicated data is protected against unauthorized access both in transit and at rest?

A Azure Firewall with IP whitelisting.

B Azure Disk Encryption combined with Azure VPN Gateway.

C Azure Active Directory Conditional Access policies only.

D Azure Storage Service Encryption with HTTPS enforced for replication traffic.

💡 Hint

Think about encryption for stored data and secure communication channels.

Azure Storage Service Encryption protects data at rest, and HTTPS secures data in transit during replication.

❓ service_behavior

advanced

Behavior of Azure Recovery Services Vault during failover

What happens to the Recovery Services Vault when you initiate a failover of a protected VM to the secondary Azure region?

A The vault remains in the primary region and continues to manage replication and recovery points for the VM.

B The vault duplicates itself in the secondary region and merges backup data automatically.

C The vault migrates to the secondary region and pauses replication until failback is initiated.

D The vault automatically switches to the secondary region and deletes backups in the primary region.

💡 Hint

Consider the vault's role and location relative to the VM replication.

The Recovery Services Vault stays in the primary region and manages replication and recovery points even after failover.

✅ Best Practice

expert

Optimizing Recovery Point Objective (RPO) in Azure disaster recovery

You want to minimize data loss during failover for a high-transaction database in Azure. Which approach best reduces the Recovery Point Objective (RPO)?

A Configure asynchronous replication with a 15-minute replication interval.

B Use synchronous replication with Azure SQL Database geo-replication enabled.

C Enable Azure Backup with incremental snapshots every hour.

D Schedule daily backups to Azure Blob Storage with geo-redundancy.

💡 Hint

Think about replication methods that keep data copies closely synchronized.

Synchronous replication ensures data is written to both primary and secondary locations simultaneously, minimizing data loss.