Answer Happy

Which of the following methods can the Windows SSO utilize to derive a user name? (Choose all that apply)
(a) Domain Controller Querying
(b) Direct Client Querying
(c) Direct Client Querying, if unsuccessful then Domain Controller Querying
(d) Domain Controller Querying, if unsuccessful then Direct Client Querying

A. a & b only
B. a & c only
C. b & c only
D. b & d only
E. All of the above