Azure Business Continuity and Disaster Recovery Design Flashcards
6 cards from real AZ-305 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Azure Business Continuity and Disaster Recovery Design flashcards as text
Your organization requires an RTO of less than 1 hour and an RPO of less than 15 minutes for a critical Azure VM workload. Which Azure service helps achieve this?
Answer: Azure Site Recovery (ASR) with replication to a secondary region
Azure Site Recovery continuously replicates VMs to a secondary region with RPO as low as 30 seconds, enabling failover within minutes to meet aggressive RTO targets.
An Azure SQL Database is configured with geo-replication to a secondary region. Which action must you take to promote the secondary to primary during a regional failure?
Answer: Initiate a failover from the secondary database in the Azure portal or via PowerShell
Initiating a planned or forced failover promotes the geo-secondary to become the new read-write primary with minimal data loss.
You need to design a solution where your application continues operating with zero downtime and zero data loss even if an entire Azure region becomes unavailable. Which deployment model achieves this?
Answer: Active-active multi-region deployment with Azure Traffic Manager or Front Door
An active-active multi-region deployment serves live traffic from multiple regions simultaneously; if one region fails, Traffic Manager or Front Door routes all traffic to the remaining healthy region with no downtime.
Which Azure Backup feature ensures that backups cannot be deleted for a specified retention period, protecting against ransomware or malicious administrators?
Answer: Immutable vault with locked policy
Immutable vault with a locked policy prevents any modification or deletion of backup data and policies for the configured retention window, even by subscription administrators.
Your application's SLA requires 99.99% availability. You are deploying to Azure VMs. Which configuration is required to achieve the 99.99% compute SLA from Microsoft?
Answer: Two or more VMs deployed across two or more Availability Zones
Microsoft guarantees 99.99% VM SLA only when two or more VMs are deployed across two or more Availability Zones in the same region.
You need to design a disaster recovery test plan for Azure VMs protected by Azure Site Recovery that does not impact production workloads. Which ASR capability supports this?
Answer: Test failover using an isolated Azure VNet
ASR Test Failover spins up replicated VMs in an isolated VNet without disrupting replication to the primary, allowing full DR validation without production impact.