In PD-based DR, Nutanix distinguishes between planned migration and unplanned failover/activation. When the source side is unstable or unreachable, the administrator cannot rely on a clean migration workflow initiated from the source. In that case, the correct recovery action is to activate the protection domain on the destination cluster. This is the classic unplanned failover behavior: bring the replicated workload online at the target because the source cannot be trusted to participate in a coordinated handoff. That makes A the correct answer. ( portal.nutanix.com , portal.nutanix.com ) The exam distinction is simple: Migrate is for planned movement when both sides cooperate; Activate is for disaster-style recovery at the target. Since the question explicitly says the source has intermittent network issues, it is pointing you toward the unplanned-failover path. Therefore the administrator should perform Activate on the destination.