Azure Business Continuity and Disaster Recovery Flashcards

What does the Recovery Time Objective (RTO) represent in a disaster recovery plan?

Answer: The maximum acceptable time to restore a service after a disaster

RTO defines the maximum tolerable duration of downtime — the amount of time within which a service must be restored to avoid unacceptable business impact.

Which Azure service is used to orchestrate the replication and failover of Azure VMs to a secondary region for disaster recovery?

Answer: Azure Site Recovery

Azure Site Recovery (ASR) continuously replicates Azure VMs to a secondary region and enables orchestrated failover with recovery plans, minimizing RTO and RPO.

A company requires a Recovery Point Objective (RPO) of near zero for a mission-critical Azure SQL Database. Which feature should be used?

Answer: Active Geo-Replication

Active Geo-Replication synchronously replicates transactions to up to four secondary replicas in real time, achieving near-zero RPO for Azure SQL Database.

Which Azure SQL Database feature provides automatic failover with a configurable grace period and maintains read/write DNS endpoints that automatically redirect after failover?

Answer: Auto-Failover Groups

Auto-Failover Groups provide a single connection endpoint that automatically redirects to the secondary after failover, enabling application connectivity without DNS changes.

Which Azure Backup feature allows you to retain database backups for up to 10 years to meet long-term compliance requirements?

Answer: Long-Term Retention (LTR)

Long-Term Retention (LTR) for Azure SQL Database stores full backups in geo-redundant storage for up to 10 years, supporting compliance and auditing requirements.

An architect is designing a disaster recovery solution where the secondary site must be ready to take over within minutes with minimal infrastructure cost. Which DR pattern should be chosen?

Answer: Warm Standby (pilot light)

Warm standby (pilot light) keeps minimal core infrastructure running in the secondary region, reducing cost while enabling faster recovery than cold standby by pre-deploying key components.