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 Backup with daily snapshots

Answer

Azure VM snapshot policies

Answer

Azure Managed Disks ZRS replication

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

Stop the primary database and restart the secondary

Answer

Delete the primary and rename the secondary

Answer

Re-create the geo-replication link from the secondary

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

Active-passive with Azure Site Recovery and manual failover

Answer

Single region with Availability Zones

Answer

Geo-redundant storage with read-only secondary

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

Soft delete for Azure Backup

Answer

Resource lock on the Recovery Services vault

Answer

Azure Backup geo-redundancy

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

Single VM with Premium SSD

Answer

Two or more VMs in an Availability Set

Answer

Three VMs in a Proximity Placement Group

Question 6

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?

Accepted Answer

Test failover using an isolated Azure VNet

Answer

Planned failover to the secondary region

Answer

Unplanned failover with commit

Answer

Reprotection after failover