Final answer:
The Azure PowerShell cmdlet to create an availability set is New-AzAvailabilitySet and the Azure CLI command is az availability-set create, corresponding to option a.
Step-by-step explanation:
The correct Azure PowerShell cmdlet to create an availability set is New-AzAvailabilitySet, and the corresponding Azure CLI command is az availability-set create. So the correct option is a. New-AzAvailabilitySet and az availability-set create. When using these commands, you can specify various parameters like the resource group name, the name of the availability set, and other settings such as the number of fault domains and update domains.
These commands are instrumental in configuring and managing availability sets within the Azure environment, ensuring the establishment of resilient and fault-tolerant infrastructures. The versatility offered by specifying various parameters facilitates tailored setups aligned with specific application and workload requirements, contributing to the seamless deployment and maintenance of resources in Azure.