Operating System – Questions Set 1

Q 1. What is the base of octal number system?
a. 16
b. 10
c. 8
d. 2

Q 2. What is the base of hexadecimal number system?
a. 16
b. 10
c. 8
d. 2

Q 3. Which of the following is system software?
a. Windows Vista
b. Notepad
c. Firefox
d. Microsoft office

Q 4. The program which is currently in execution is also called?
a. Application software
b. Process
c. Operating system
d. None of the above

Q 5. The concept by which multiple programs can be executed on the computer is called?
a. Real time transaction
b. Time sharing
c. Batch processing
d. Multi programming

Q 6. Which register contains the address of next instruction to be executed?
a. Accumulator
b. Status register
c. Program counter
d. Stack pointer

Q 7. In which register the result of arithmetic and logical operations are stored in ALU?
a. Accumulator
b. Status register
c. Program counter
d. Stack pointer

Q 8. Which register is used to store the state of processor?
a. Accumulator
b. Status register
c. Program counter
d. Stack pointer

Q 9. Which register is used to hold the address of top of stack?
a. Accumulator
b. Status register
c. Program counter
d. Stack pointer

Q 10. In which scheduling technique, each process is given some fixed quantum of time to execute?
a. Shortest Job First
b. Priority Based Scheduling
c. Round Robin Scheduling
d. Multi Queue Scheduling

Answers:
Q 1. (c), Q 2. (a), Q 3. (a), Q 4. (b), Q 5. (d), Q 6. (c), Q 7. (b), Q 8. (b), Q 9. (d), Q 10. (c)

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