Final answer:
A combination of a fault domain and an update domain in cloud computing, specifically Microsoft Azure, is known as an Availability Set. It is designed for redundancy and high availability, minimizing downtime during maintenance or failures.
Step-by-step explanation:
A combination of a fault domain and an update domain is typically referred to as an Availability Set. In the context of cloud computing, specifically within Microsoft Azure, an Availability Set is a logical grouping that helps to ensure that VM resources are distributed across multiple, isolated hardware nodes in a cluster. This setup is designed to provide redundancy and high availability for applications, enabling the maintenance or unexpected failure of a node without impacting the overall service availability.
A fault domain is a group of virtual machines that share a common power source and network switch, whereas an update domain is a group of virtual machines and underlying physical hardware that can be rebooted at the same time. By combining these domains into Availability Sets, Azure ensures that during either planned or unplanned maintenance events, at least one virtual machine is available and meets the agreed service levels or SLAs.