AZ-305 Azure Business Continuity and Disaster Recovery Design

Question 1

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?

Accepted Answer

Azure Site Recovery (ASR) with replication to a secondary region

Answer

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.

Question 2

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?

Accepted Answer

Initiate a failover from the secondary database in the Azure portal or via PowerShell

Answer

Initiating a planned or forced failover promotes the geo-secondary to become the new read-write primary with minimal data loss.

Question 3

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?

Accepted Answer

Active-active multi-region deployment with Azure Traffic Manager or Front Door

Answer

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.

Question 4

Which Azure Backup feature ensures that backups cannot be deleted for a specified retention period, protecting against ransomware or malicious administrators?

Accepted Answer

Immutable vault with locked policy

Answer

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.

Question 5

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?

Accepted Answer

Two or more VMs deployed across two or more Availability Zones

Answer

Microsoft guarantees 99.99% VM SLA only when two or more VMs are deployed across two or more Availability Zones in the same region.

AZ-305 - Designing Microsoft Azure Infrastructure Solutions Practice Test

AZ-305 - Designing Microsoft Azure Infrastructure Solutions Practice Test

AZ-305 Azure Business Continuity and Disaster Recovery Design