Multitasking Operating Systems

Embedded System

This set of Embedded Systems Multiple Choice Questions & Answers (MCQs) focuses on “Multitasking Operating Systems”.

1. Which of the following works by dividing the processor’s time?
a) single task operating system
b) multitask operating system
c) kernel
d) applications

2. Which of the following decides which task can have the next time slot?
a) single task operating system
b) applications
c) kernel
d) software

3. Which of the following controls the time slicing mechanism in a multitasking operating system?
a) kernel
b) single tasking kernel
c) multitasking kernel
d) application manager

4. Which of the following provides a time period for the context switch?
a) timer
b) counter
c) time slice
d) time machine

5. Which of the following can periodically trigger the context switch?
a) software interrupt
b) hardware interrupt
c) peripheral
d) memory

6. Which interrupt provides system clock in the context switching?
a) software interrupt
b) hardware interrupt
c) peripheral
d) memory

7. The special tale in the multitasking operating system is also known as
a) task control block
b) task access block
c) task address block
d) task allocating block

8. Which of the following stores all the task information that the system requires?
a) task access block
b) register
c) accumulator
d) task control block

9. Which of the following contains all the task and their status?
a) register
b) ready list
c) access list
d) task list

10. Which determines the sequence and the associated task’s priority?
a) scheduling algorithm
b) ready list
c) task control block
d) application register

11. Which can control memory usage?
a) operating system
b) applications
c) hardware
d) kernel

12. Which can control the memory sharing between the tasks?
a) kernel
b) application
c) software
d) OS

13. Which of the following can implement the message passing and control?
a) application software
b) operating system
c) software
d) kernel

14. How many types of messages are associated with the real-time operating system?
a) 2
b) 3
c) 4
d) 5

15. Which of the following can carry information and control task?
a) semaphore
b) messages
c) flags
d) address message

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