You are designing a 5-node Windows Server Failover Cluster stretched across two sites: Site A (3 nodes) and Site B (2 nodes). You must maintain cluster service in Site B if Site A is lost entirely. Internet connectivity is available at both sites. Which quorum configuration should you implement?

Node Majority with a Cloud Witness in Azure is the correct choice because it provides an independent quorum vote accessible from both sites, preventing a split-brain scenario. With three nodes in Site A and two in Site B, if Site A fails, Site B only has two votes. A Cloud Witness in Azure provides the necessary third vote for Site B to maintain a majority (2 nodes + 1 witness = 3 votes out of 5 total), allowing the cluster service to continue. Node and Disk Majority using a shared disk in Site A is incorrect because if Site A fails, the shared disk witness also becomes unavailable, leading to cluster failure in Site B. Node and File Share Majority with a file share witness in Site A has the same vulnerability. Node Majority with no witness is incorrect because without a witness, Site B would not have a majority of votes if Site A fails, causing the cluster to stop.