Which of the following Authentication Realms are supported by Blue Coat in SGOS 5.3?

Which of the following Authentication Realms are supported by Blue Coat in SGOS 5.3? (Choose
all that apply)
(a) IWA
(b) RADIUS
(C) LDAP
(d) TACACS+

A.
a, b & d only

B.
b, c & d only

C.
a, b &c only

D.
All of the above

Explanation: