Microsoft Azure Administrator Associate AZ-104 Practice Question
You are planning the deployment of several Azure virtual machines that will host a business-critical application. The application must remain available even if a complete Azure datacenter becomes unavailable. You also need to minimize the impact of maintenance operations and hardware failures.
Which configuration should you choose for your virtual machine deployment?
Deploy the virtual machines across availability zones
Deploy the virtual machines in a proximity placement group
Enable Azure Backup for the virtual machines
Deploy the virtual machines in an availability set
Deploying the virtual machines across availability zones ensures that your application remains available even if an entire Azure datacenter becomes unavailable. Availability zones are physically separate locations within an Azure region, providing isolation from failures in other zones. This configuration also reduces the impact of maintenance and hardware issues, as each zone operates independently.
Using an availability set only protects against host-level failures within the same datacenter and does not safeguard against datacenter outages. A proximity placement group minimizes network latency by placing resources close together but does not enhance availability. Enabling Azure Backup helps with data recovery but does not ensure application uptime during infrastructure failures.
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What are availability zones in Azure?
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Microsoft Azure Administrator Associate AZ-104
Deploy and manage Azure compute resources
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