ExpertHard1 markMultiple Choice
Domain 3.1: Design a solution for backup and disaster recoveryDomain 3Business ContinuityAzure Site RecoveryDisaster Recovery
AZ-305 · Question 31 · Domain 3.1: Design a solution for backup and disaster recovery
A company runs a critical 3-tier application on Azure Virtual Machines (Web, App, and Database tiers).
You are designing a disaster recovery solution using Azure Site Recovery (ASR) to replicate the VMs to a secondary region.
Requirements:
- During a failover, the Database tier VMs must boot up first.
- The App tier VMs must boot only after the Database VMs are fully running.
- The Web tier VMs must boot last.
- The failover process must be automated with a single click.
What should you configure in Azure Site Recovery?
A company runs a critical 3-tier application on Azure Virtual Machines (Web, App, and Database tiers).
You are designing a disaster recovery solution using Azure Site Recovery (ASR) to replicate the VMs to a secondary region.
Requirements:
- During a failover, the Database tier VMs must boot up first.
- The App tier VMs must boot only after the Database VMs are fully running.
- The Web tier VMs must boot last.
- The failover process must be automated with a single click.
What should you configure in Azure Site Recovery?
Answer options:
A.
A Recovery Plan with multiple groups.
B.
App-consistent recovery points.
C.
Azure Automation Runbooks attached to the VM extensions.
D.
Proximity Placement Groups.
How to approach this question
Identify the requirement to sequence the boot order of multiple VMs during DR. This is the exact purpose of ASR Recovery Plans.
Full Answer
A.A Recovery Plan with multiple groups.✓ Correct
In Azure Site Recovery, a Recovery Plan gathers machines into recovery groups for the purpose of failover. You can customize a recovery plan by adding order, instructions, and tasks. By placing the Database VMs in Group 1, App VMs in Group 2, and Web VMs in Group 3, you ensure they boot in the correct sequence. This orchestrates a single-click automated failover for complex multi-tier applications.
Common mistakes
Confusing App-consistent snapshots (which handle data consistency for a single database VM) with Recovery Plans (which handle orchestration across multiple VMs).
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