An administrator is tasked with collecting metrics from multiple VCF Private Clouds.

The minimum count is 12 collectors , because the requirement is stated at the domain level and each VCF instance contains three domains: one Management Domain and two Workload Domains. The calculation is: 2 Fleets × 2 VCF Instances per Fleet × 3 Domains per VCF Instance = 12 dedicated domain collectors . VCF 9.0 defines a VCF private cloud as containing one or more VCF fleets, a VCF fleet as containing one or more VCF instances, and a VCF instance as consisting of a management domain and optional workload domains . VCF Operations collector architecture also supports scaling collection by adding collector nodes and assigning them through collector groups; collector groups are used to increase resiliency when a collector becomes unavailable and redistribute collection work across remaining collectors . Because the question states that each domain requires dedicated collectors, the administrator cannot satisfy the design by sharing a single collector across multiple domains or counting only the VCF instances. Options 4, 6, and 10 undercount the total number of managed domains. Reference topic: Objective 4.1 – Day 2 Tasks / Unified Cloud Proxies / Collector Groups / Scaling VCF Operations Collection .