What is called the type of access control where there are pairs of elements that have the least upper bound of values and greatest lower bound of values?

What is called the type of access control where there are pairs of elements that have the least upper bound of values and greatest lower bound of values?
A .  Mandatory model
B .  Discretionary model
C .  Lattice model
D .  Rule model

View Answer

Answer: C

Explanation: In a lattice model, there are pairs of elements that have the least upper bound of values and greatest lower bound of values.

Reference(s) used for this question: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 34.