The Kerberos technology has some issues that need to be understood before access control implementation.

Which of the following are issues pertaining to Kerberos?

i.The KDC can be a single point of failure. If the KDC goes down, no one canaccess needed resources. Redundancy is necessary for the KDC.
ii. The KDC must be able to handle the number of requests it receives in a timelymanner. It must be scalable.
iii. Secret keys are temporarily stored on the users’ workstations, which means itis possible for an intruder to obtain these cryptographic keys.
iv. Session keys are decrypted and reside on the users’ workstations, either in acache or in a key table. Again, an intruder can capture these keys.

A.
i, ii, iv

B.
i, iii, iv

C.
i, ii, iii, iv

D.
ii, iii

Explanation:
The following are some of the potential weaknesses of Kerberos:- The KDC can be a single point of failure. If the KDC goes down, no one can access needed resources. Redundancy is necessary for the KDC.- The KDC must be able to handle the number of requests it receives in a timely manner. It must be scalable. Secret keys are temporarily stored on the users’ workstations, which means it is possible for an intruder to obtain these cryptographic keys.- Session keys are decrypted and reside on the users’ workstations, either in a cache or in a key table. Again, an intruder can capture these keys.