Question

The data segments defined in GDT (global descriptor table) and the LDT (local descriptor table) can be accessed by a task with

(a) privilege level 0

(b) privilege level 1

(c) privilege level 2

(d) privilege level 3

The question was posed to me during an online exam.

This question is from Privilege in section 80286-80287-A Microprocessor with Memory Management and Protection of Microprocessor

Answer 1

The correct choice is (a) privilege level 0

Best explanation: A task executing at level 0, the most privileged level, can access all the data segments defined in GDT and the LDT of the task.