Which two statements are true about deploying and using vSphere Replication? (Choose two.)
A.
ESXi hosts managed by a single vCenter Server instance require a connection between the two vSphere Replication appliances.
B.
Sites managed by different vCenter Server instances require a connection between the two vSphere Replication appliances.
C.
Sites managed by different vCenter Server instances require the use of Site Recovery Manager and a connection between the two vSphere Replication
appliances.
D.
ESXi hosts managed by a single vCenter Server instance require a single vSphere Replication appliance.
Explanation:
To use vSphere Replication between two sites managed by different vCenter Server instances, you must configure a connection between the two vSphere
Replication appliances.
You can complete this process on either site on which you have installed a vSphere Replication appliance. If you are using an untrusted certificate, certificate
warnings might appear during the process.
Alternatively, you can use vSphere Replication to replicate virtual machines between different ESXi hosts that the same vCenter Server manages. In this case, you
deploy only one vSphere Replication appliance and you do not need to connect the primary and secondary sites.
https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.replication_admin.doc%2FGUID-FFBF959C-5C05-42C0-A2FE-3688AD55B6EF.html