Explore topic-wise MCQs in Microprocessors.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Microprocessors knowledge and support exam preparation. Choose a topic below to get started.

1.

When a JUMP instruction references a Task State Segment(TSS) descriptor, then DPL must be

A. equally privileged as CPL
B. greater or equally privileged than CPL
C. less or equally privileged than CPL
D. less privileged than CPL
Answer» D. less privileged than CPL
Discussion
2.

The instruction that refers to only code segment descriptors with DPL equal to or less than the task CPL is

A. CALL
B. IRET
C. ESC
D. RET and IRET
Answer» E.
Discussion
3.

The RPL of a selector that referred to the code descriptor must have

A. less privilege than CPL
B. greater privilege than CPL
C. equal privilege than CPL
D. any privilege regarding CPL
Answer» D. any privilege regarding CPL
Discussion
4.

A CALL instruction can reference only a code segment descriptor with

A. DPL less privilege than CPL
B. DPL equal privilege to CPL
C. DPL greater privilege than CPL
D. All of the mentioned
Answer» C. DPL greater privilege than CPL
Discussion
5.

The task requesting an access to a descriptor is allowed to access after checking the

A. type of descriptor
B. privilege level
C. type of descriptor and privilege level
D. corresponding segment
Answer» D. corresponding segment
Discussion
6.

A task with privilege level 0, doesn t refer to all the lower level privilege descriptors in

A. GDT (global descriptor table)
B. LDT (local descriptor table)
C. IDT (interrupt descriptor table)
D. None of the mentioned
Answer» C. IDT (interrupt descriptor table)
Discussion