AZ-300 Azure High Availability & Disaster Recovery

Question 1

Which Azure feature replicates virtual machines to a secondary region and enables failover in the event of a regional outage?

Accepted Answer

Azure Site Recovery

Answer

Azure Site Recovery (ASR) continuously replicates VMs to a secondary region and orchestrates failover to restore workloads during a disaster.

Question 2

What is the difference between an Availability Set and an Availability Zone in Azure?

Accepted Answer

Availability Zones protect against datacenter failures; Availability Sets protect against rack and power failures within a datacenter

Answer

Availability Zones are physically separate datacenters within a region (protecting against full datacenter failure), while Availability Sets distribute VMs across fault and update domains within a single datacenter.

Question 3

A company needs their Azure VMs in an Availability Set to have a guaranteed uptime SLA. What is the minimum number of VMs required to receive the 99.95% SLA?

Accepted Answer

2

Answer

Azure guarantees a 99.95% SLA for VMs in an Availability Set only when at least two instances are deployed across separate fault and update domains.

Question 4

Which Azure Traffic Manager routing method directs users to the endpoint with the lowest latency?

Accepted Answer

Performance

Answer

The Performance routing method in Traffic Manager measures latency to all endpoints and directs users to the one with the lowest network latency.

Question 5

What does Recovery Point Objective (RPO) represent in a disaster recovery plan?

Accepted Answer

The maximum acceptable amount of data loss measured in time

Answer

RPO defines how much data an organization can afford to lose, expressed as the maximum age of data that must be recovered — essentially the backup frequency requirement.

AZ-300 - Microsoft Azure Solutions Architect Practice Test

AZ-300 - Microsoft Azure Solutions Architect Practice Test

AZ-300 Azure High Availability & Disaster Recovery