A. Shell B. File manager C. Scheduler
ANSWER: A
4. Multitasking in a computer with only one CPU is accomplished by a
technique called .
A. Bootstrapping B. Batch processing C. Multiprogramming
ANSWER: C
5. Execution of an operating system is initiated by a program called the .
A. Window manager B. Scheduler C. Bootstrap
ANSWER: C
6. The end of a time slice is indicted by the occurrence of a signal called .
A. An interrupt B. A semaphore C. A login
ANSWER: A
7. A set of instructions that should be executed by only one process at a time is
called .
A. Utility B. Critical region C. Privileged instruction
ANSWER: B
8. Which of the following is not an attempt to provide security?
A. Passwords B. Privilege instructions C. Multitasking
ANSWER: C
9. Which of the following events is harmful to an operating system’s
performance?
A. Deadlock B. Interrupt C. Booting
ANSWER: A
10. Which of the following is a technique for controlling access to a critical
region?
A. Spooling B. Time sharing C. Semaphore D. Booting
ANSWER: C
11. Which of the following is not involved in a process switch?