A and B.
A) Yes. "vSphere Lifecycle Manager enables you to manage ESXi hosts and clusters with images or baselines" [https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere-lifecycle-manager.doc/GUID-9A20C2DA-F45F-4C9B-9D17-A89BCB62E6EF.html]
B) Yes. As with VUM, you can still use vLCM to update VM tools and hardware [https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere-lifecycle-manager.doc/GUID-0295A915-3963-47AD-AA79-C275226B866F.html]
C) No. vLCM is used for hosts, not vCenter
D) No. vLCM is used for hosts, not vCenter
E) No. "With standalone hosts, you can only use baselines." [https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere-lifecycle-manager.doc/GUID-B54663AB-B1D1-4E87-8B8C-76FF2998A477.html]
Answers are also easy to confirm in a lab, but I can't attach screenshots.
Starting with vSphere 8.0, you can use an image to manage the lifecycle of any standalone ESXi host that is part of your vCenter Server inventory. In vSphere 8.0 Update 1, you can use both, the vSphere Client and the vSphere Automation API, to manage the lifecycle of a standalone host.
https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-lifecycle-manager/GUID-4775E7F5-CD35-47D6-AE45-BE3E6AA5ED89.html
From VMware course:
vSphere Lifecycle Manager enables
- Upgrade VMware Tools and VM HW
- Update ESXi hosts using baseline groups
- Update a vSphere cluster using images
vSphere Lifecycle Manager offers the following features: • Upgrading and patching ESXi hosts •
• •
Installing and updating third-party software on ESXi hosts Standardizing images across hosts in a cluster Installing and updating ESXi drivers and firmware
• Managing VMware Tools and VM hardware upgrades
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