Operating Systems Concepts – Section 1

1. The part of machine level instruction, which tells the central processor what has to be done, is

A. Operation code
B. Address
C. Locator
D. Flip-Flop
E. None of the above

Correct Answer: A. Operation code

2. Which of the following refers to the associative memory?

A. the address of the data is generated by the CPU
B. the address of the data is supplied by the users
C. there is no need for an address i.e. the data is used as an address
D. the data are accessed sequentially
E. None of the above

Correct Answer: C. there is no need for an address i.e. the data is used as an address

3. To avoid the race condition, the number of processes that may be simultaneously inside their critical section is

A. 8
B. 1
C. 16
D. 0
E. None of the above

Correct Answer: B. 1

4. A system program that combines the separately compiled modules of a program into a form suitable for execution

A. assembler
B. linking loader
C. cross compiler
D. load and go
E. None of the above

Correct Answer: B. linking loader

5. Process is

A. program in High level language kept on disk
B. contents of main memory
C. a program in execution
D. a job in secondary memory
E. None of the above

Correct Answer: C. a program in execution

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