As per the below document, vSphere6.5 components are ESXi,vCenter Server, vCenter Single Sign-On, STS, Administration server,vCenter Lookup Service, VMware Directory
Service, vCenter Server plug-ins,vCenter Server database, tcServer, vCenter Server agent and Host agent.
Wondering why they are referred to as components and why the below items are not listed in the Vsphere 6.5 component list
Vsphere host Client
Vsphere web client
vsphere data protection
vcenter standalone converter
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