1. Dual mode of operating system has
a. 1 mode
b. 2 modes
c. 3 modes
d. 4 modes
Answer: (b).2 modes

2. Multi-processor system gives a
a. small system
b. tightly coupled system
c. loosely coupled system
d. both a and b
Answer: (b).tightly coupled system

3. Logical extension of multiprogramming operating system is
a. time sharing
b. multi-tasking
c. single programing
d. both a and b
Answer: (d).both a and b

4. Multiprocessor system have advantage of
a. Increased Throughput
b. Expensive hardware
c. operating system
d. both a and b
Answer: (a).Increased Throughput

5. Scheduling of threads are done by
a. input
b. output
c. operating system
d. memory
Answer: (c).operating system

6. Multiprogramming of the computer system increases
a. memory
b. storage
c. CPU utilization
d. cost
Answer: (c).CPU utilization

7. Another type of multiple-CPU system is the
a. mini Computer
b. Super Computer
c. Clustered System
d. both a and b
Answer: (c).Clustered System

8. Interrupt table of pointers having addresses for each interrupt is located at
a. high memory
b. low memory
c. mid memory
d. both a and b
Answer: (b).low memory

9. Example of open source operating system is
b. Linux
c. windows
d. both a and b
Answer: (d).both a and b

10. Main memory of the computer system is also called
a. non volatile
b. volatile
c. reserved
d. large
Answer: (b).volatile

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