AZ-305 Azure Business Continuity and Disaster Recovery Design 3

Question 1

You are designing a multi-region architecture and need to ensure that DNS automatically fails over to the secondary region when the primary becomes unhealthy. Which Azure service provides this?

Accepted Answer

Azure Traffic Manager with health endpoint monitoring

Answer

Azure Private DNS zones

Answer

Azure Front Door with origin health probes

Answer

Azure DNS with manual TTL management

Question 2

What is the key difference between Azure Site Recovery's 'planned failover' and 'unplanned failover' options?

Accepted Answer

Planned failover ensures zero data loss by flushing changes to secondary first; unplanned may have minimal data loss

Answer

Planned failover requires manual steps while unplanned is automatic

Answer

Planned failover costs more than unplanned

Answer

Unplanned failover creates a new replication link automatically

Question 3

An organization needs to test their Azure disaster recovery plan quarterly without interrupting production services and with automatic cleanup of test resources afterward. Which ASR feature supports this?

Accepted Answer

ASR Recovery Plans with test failover automation scripts

Answer

ASR Reprotection jobs

Answer

Azure Runbooks triggered by alerts

Answer

ASR planned failover with rollback

Question 4

Your organization uses Azure Backup for VMs and needs to ensure backup data stored in the Recovery Services vault remains available even if the primary Azure region fails. Which vault replication setting should you choose?

Accepted Answer

Geo-Redundant Storage (GRS) — primary + secondary region copies

Answer

Locally Redundant Storage (LRS) — 3 copies in same datacenter

Answer

Zone-Redundant Storage (ZRS) — 3 zones in same region

Answer

Read-Access Geo-Redundant Storage (RA-GRS)

Question 5

You need to document your DR strategy with defined RTO and RPO targets. Which statement correctly defines these two terms?

Accepted Answer

RTO is the time to restore services to operation; RPO is the maximum acceptable data loss measured in time

Answer

RTO is the maximum acceptable data loss; RPO is the time to recover services

Answer

RTO and RPO are both measured as the time since last backup

Answer

RPO is the recovery point in a secondary datacenter; RTO is the recovery time objective for primary

Question 6

Which Azure SQL Database feature automatically redirects application connections to the secondary replica during a regional failure without requiring connection string changes?

Accepted Answer

Auto-failover group listener endpoint

Answer

Geo-replication with manual failover and secondary endpoint

Answer

Azure Traffic Manager with SQL endpoints

Answer

Azure SQL Managed Instance link feature