Can the 12.x beta version of SEPM manage SEP11 clients?
NO
SEP 11.0.XXX is different from SEP 12.0.XXXX ;
12.0..XXX is called Small and medium business SEP
for large enterprises SEP is preferred; 12 cannot manage 11 and vice versa.
I am not sure about the beta version,But SEP 12.x (The newer version of endpoint protection for which beta version is available now) can manage SEP 11 clients
are you sure?? The version 12 beta documentation ( version 12.1?) implies that there is an upgrade path from 11 to 12. It appears the the version 12.1.601.4699 clients can connect to the sep11 manager, but I haven't had time to see how well this works yet.
Yes
Yes, SEPM 12.1 (currently in beta) can manage SEP11 clients.
The same goes with SEP 12.0 SBE legacy clients: I have recently made some tests with migration from SBE to SEP12 beta, with largely positive effects.
Just to be clear, SEPM for 12.1 can manage SEP 11.x clients. However, SEPM for 11.x cannot manage SEP 12.1 clients.