Compute (VMs)

Virtual Machine Scale Sets allow you to deploy and manage a group of identical, load-balanced VMs that can automatically scale up or down based on demand. Option D is incorrect because, while scale sets can integrate with load balancers, they are a compute resource rather than a dedicated networking load balancer.

Ultra Disk provides sub-millisecond latency and the highest IOPS and throughput configuration options, making it the ideal choice for demanding database workloads. In contrast, Standard HDDs are magnetic-based storage designed for backup or infrequent access and cannot handle heavy production database traffic.

Availability sets ensure high availability by distributing virtual machines across isolated fault and update domains within a single datacenter. A diagram for this topic isn't available yet — the worked example below walks the same reasoning step by step.

• !They do not provide auto-scaling, which is instead a feature of Virtual Machine Scale Sets, nor do they replicate VMs across different geographic regions.
• !Option D is incorrect because, while scale sets can integrate with load balancers, they are a compute resource rather than a dedicated networking load balancer.

Answer each from memory — you'll see instantly whether you're right and why.

Run a focused 10-question mini-mock on Compute (VMs) and see it stick.