Which of the following is not a necessary characteristic of a Kerberos implementation?

A.
Transparent

B.
Scalable

C.
Reliable

D.
Cohesive

Explanation:
Kerberos needs to be transparent (working in the background without the user needingto understand it), scalable (work in large heterogeneous environments), reliable(distributed server architecture to ensure that there is no single point offailure), and provide the necessary security (authentication and confidentiality). Cohesive is a distracter.