Explore topic-wise MCQs in Operating System.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Operating System knowledge and support exam preparation. Choose a topic below to get started.

1.

THE_CPU_HARDWARE_HAS_A_WIRE_CALLED____________THAT_THE_CPU_SENSES_AFTER_EXECUTING_EVERY_INSTRUCTION.?$

A. interrupt request line
B. interrupt bus
C. interrupt receive line
D. interrupt sense line
Answer» B. interrupt bus
Discussion
2.

In general the two interrupt request lines are :$

A. maskable & non maskable interrupts
B. blocked & non maskable interrupts
C. maskable & blocked interrupts
D. none of the mentioned
Answer» B. blocked & non maskable interrupts
Discussion
3.

The _________ determines the cause of the interrupt, performs the necessary processing and executes a return from the interrupt instruction to return the CPU to the execution state prior to the interrupt.$

A. interrupt request line
B. device driver
C. interrupt handler
D. all of the mentioned
Answer» D. all of the mentioned
Discussion
4.

The hardware mechanism that allows a device to notify the CPU is called ______?

A. polling
B. interrupt
C. driver
D. controlling
Answer» C. driver
Discussion