VMware Certified Professional - Data Center Virtualization (VCP-DCV) Practice Exam

If a node in a fault domain fails within a Virtual SAN cluster, what is the expected result?

1. The remaining two fault domain members are treated as failed.

2. The remaining two fault domain members stay protected by the domain.

3. One of the non-member nodes will be automatically added to the fault domain.

4. VMware High Availability will restart virtual machines on remaining nodes in the domain.

The correct answer is: The remaining two fault domain members are treated as failed.

When considering the behavior of a Virtual SAN (VSAN) cluster in the event of a node failure within a fault domain, the correct choice highlights the nature of fault domains and how they manage node failures. In a Virtual SAN cluster configured with fault domains, nodes are grouped into these domains to ensure better data availability and redundancy. When a node in a fault domain goes down, it compromises the fault tolerance guarantees of that specific domain. Consequently, the remaining two members of the fault domain are now treated as failed as a whole, since the domain's capability to tolerate failures has been compromised. This means that the data hosted on these nodes is at risk because the cluster can no longer meet the configured fault tolerance level. Understanding this concept is crucial for ensuring high availability and resilience in a virtualized environment. The rationale behind treating the remaining members as failed is based on the design principle of fault domains, which are meant to ensure that data availability relies on more than just a single member of the domain. Looking at the context of the other options reveals why they do not apply: - The protection provided to members of a fault domain does not extend once a node fails; thus stating that the other members stay protected is misleading. - Automatically adding a non-member node to