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Azure High Availability & Disaster Recovery Flashcards

7 cards from real AZ-300 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Azure High Availability & Disaster Recovery flashcards as text
  1. What is the SLA guarantee for Azure VMs deployed across two or more Availability Zones?

    Answer: 99.99%

    Azure guarantees a 99.99% SLA for VMs when two or more instances are deployed in two or more Availability Zones within the same region.

  2. Which Azure Backup retention tier stores recovery points at a lower cost for long-term archive?

    Answer: Archive tier

    The Archive tier in Azure Backup stores recovery points cheaply for long-term retention (e.g., compliance requirements of 7+ years) at significantly lower cost than the vault-standard tier.

  3. A company needs automatic DNS-based failover from a primary Azure region to a secondary region when the primary becomes unhealthy. Which Azure service provides this?

    Answer: Azure Traffic Manager with Priority routing

    Azure Traffic Manager with Priority routing monitors endpoint health via DNS and automatically redirects traffic to the secondary endpoint when the primary endpoint fails health checks.

  4. What does the Recovery Time Objective (RTO) define in a business continuity plan?

    Answer: The maximum time allowed to restore business operations after a disaster

    RTO is the maximum tolerable duration of a service outage — it defines how quickly systems must be restored to avoid unacceptable business impact.

  5. You configure Azure Site Recovery for a VM and initiate a planned failover to the secondary region. What happens to replication after the failover?

    Answer: Replication automatically reverses to replicate from the new primary back to the original region

    After a planned failover completes, Azure Site Recovery automatically sets up reverse replication so the new primary (secondary region) now replicates back to the original region, maintaining DR protection.

  6. Which Azure Storage redundancy option replicates data synchronously across three Availability Zones within the same region?

    Answer: Zone-redundant storage (ZRS)

    Zone-redundant storage (ZRS) synchronously replicates data across three Availability Zones within the same region, protecting against datacenter-level failures.

  7. An enterprise requires that Azure VM backups be retained for 5 years to meet compliance requirements. Which Azure Backup feature supports this?

    Answer: Azure Backup long-term retention using the Archive tier in a Recovery Services vault

    Azure Backup's Archive tier within a Recovery Services vault supports long-term retention of recovery points for compliance, allowing retention periods of multiple years at reduced cost.