Microsoft Azure Solutions Architect Expert AZ-305 Practice Question
Your company runs a mission-critical Windows Server 2019 workload on a single Standard SSD-based Azure virtual machine in the Australia East region. Compliance policy states that if the entire region becomes unavailable, the VM must be brought online in another Azure region within two hours and with no more than 15 minutes of data loss. Ongoing management effort should be kept to a minimum and no third-party tools may be used. Which solution should you implement to meet these requirements?
Schedule weekly managed disk snapshots and copy them to a storage account in the paired region by using Azure Storage account replication.
Enable Azure VM Backup with a daily schedule to a Recovery Services vault that uses geo-redundant storage (GRS).
Configure Azure Site Recovery to replicate the VM continuously to the Australia Southeast paired region and create a recovery plan for failover.
Enable Azure Backup Instant Restore with locally redundant storage (LRS) and automate VM redeployment to another region by using custom scripts.
Azure Site Recovery (ASR) provides continuous, asynchronous replication of Azure virtual machines to a paired region. For VMs that use managed disks, ASR attempts to keep the recovery point objective under 15 minutes by sending changes every few seconds to minutes, and it orchestrates failover so that a replica can be started in the target region within the required recovery-time objective. Azure Backup, disk snapshots, or ad-hoc scripts cannot guarantee a 15-minute RPO or a two-hour RTO during a regional outage because they rely on point-in-time backups taken on a schedule and involve manual redeployment steps.
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What is Azure Site Recovery (ASR)?
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What are Recovery Point Objectives (RPO) and Recovery Time Objectives (RTO)?
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Why is geo-redundant storage (GRS) not sufficient for mission-critical workloads?
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Microsoft Azure Solutions Architect Expert AZ-305
Design business continuity solutions
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