Question about benchmark mode vs flexible mode

Hi, would you help me to clarify which mode i should use for my customers test ?

if somebody can answer to my questions, it would be helpfull.

1. benchmark mode

    1.1 benchmark mode has a few standard scenario to making VDI workload. would you share the contents of those scenario ?

    1.2 How does benchmark mode simulate login peak time for 400VDI users ?

2. Flexible mode

    2.1 how can I decide which mode should be used for my test, remote-mode, passive-mode and local-mode ?

         in other word, what kind of test cases are suit for each mode?

          I know remote-mode is 1:1 for client and desktop, passive-mode is 1:N and local-mode is 0:N.

    2.2 how does flexible mode simulate login peak time for 400VDI users ?

thank you very much.

Ayako