Design business continuity solutions
Free Microsoft Certified: Azure Solutions Architect Expert practice — 6 questions on Design business continuity solutions, with explanations. No sign-up. Full 12-question mixed test →
A company runs a mission-critical Azure SQL Database (PaaS, not a Managed Instance) that must automatically fail over to a paired region with an RPO of about 5 seconds and no application connection string changes. Which design meets this requirement?
Auto-failover groups build on active geo-replication and add a listener endpoint plus automatic (or triggered) failover, giving a low RPO (typically seconds) without changing the app's connection string.
A security team is concerned that a compromised Global Administrator account could delete or disable backups in a Recovery Services vault before ransomware is detected, defeating the recovery strategy. Which single configuration change on the vault BEST mitigates this risk?
Locked immutability prevents backup data from being deleted or having its retention shortened, and MUA (via Azure Resource Guard) requires approval from a separate, isolated authority for critical operations, protecting against a single compromised account.
You are configuring an Azure Site Recovery replication policy for Azure VM-to-Azure DR. The business requires the ability to recover using a recovery point up to 5 days old. Crash-consistent recovery points are generated automatically at a fixed interval that cannot be changed. What should you configure?
For Azure VM-to-Azure replication, crash-consistent recovery points are generated automatically every 5 minutes and this interval isn't user-configurable; the retention window (how far back you can restore) is configurable up to 15 days, so setting retention to at least 120 hours satisfies the 5-day requirement.
A global retail platform uses Azure Cosmos DB and requires zero data loss (RPO = 0) along with active-active multi-region writes for the lowest possible write latency worldwide. Which design should you recommend?
Cosmos DB Strong consistency (which is required to guarantee RPO = 0) is only available with a single write region; other regions can be added as read replicas with automatic failover to satisfy RTO, but true zero-data-loss multi-master writes are not achievable.
You need a VM-based application tier design that qualifies for Azure's guaranteed 99.99% compute SLA. Which configuration meets this requirement?
Azure guarantees 99.99% VM availability when instances are deployed across two or more Availability Zones within a region.
Azure VMs are protected in a Recovery Services vault configured with geo-redundant storage (GRS). A regional outage occurs in the primary region, and you need to restore the VMs in the paired secondary region during the outage. What must have been configured in advance for this to be possible?
Cross Region Restore is an explicit opt-in setting on a GRS-configured vault that must be enabled before the outage; once enabled, backup data replicated to the secondary region becomes restorable there during a regional outage.
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