Deploying Highly Available Azure Virtual Machines

Ensuring High Availability of Azure Virtual Machines

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Question

You plan to deploy several Azure virtual machines.

You need to ensure that the services running on the virtual machines remain available if a single data center fails.

What are two possible solutions? Each correct answer presents a complete solution.

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

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https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/availability https://docs.microsoft.com/en-us/azure/virtual-machines/windows/regions

To ensure that services running on virtual machines remain available if a single data center fails, you need to deploy them in a way that provides high availability and redundancy. Here are the possible solutions:

A. Deploy the virtual machines to two or more availability zones: Azure Availability Zones are physical data centers within an Azure region that are connected through a high-speed, low-latency network. By deploying virtual machines in two or more availability zones, you can ensure that your application remains available even if one availability zone fails. Azure automatically replicates your resources across availability zones, providing automatic failover in case of a disaster or outage.

B. Deploy the virtual machines to two or more resource groups: Azure Resource Manager allows you to organize your resources into logical groups called resource groups. By deploying virtual machines to multiple resource groups, you can ensure that your application remains available even if one resource group fails. However, this solution is not as robust as deploying virtual machines to availability zones because it relies on manual failover procedures.

C. Deploy the virtual machines to a scale set: An Azure virtual machine scale set allows you to automatically scale your virtual machines based on demand. By deploying virtual machines to a scale set, you can ensure that your application remains available even if one virtual machine fails. Azure automatically replaces failed virtual machines with healthy ones, ensuring that your application remains available.

D. Deploy the virtual machines to two or more regions: Deploying virtual machines to two or more regions is the most robust solution for ensuring high availability and redundancy. By deploying virtual machines in multiple regions, you can ensure that your application remains available even if an entire region fails. However, this solution can be more expensive and complex to manage than deploying virtual machines to availability zones or a scale set.