Operating Systems Concepts – Section 5

36. A critical region is

A. a program segment that has not been proved bug-free
B. a program segment that often causes unexpected system crashes
C. a program segment where shared resources are accessed
D. one which is enclosed by a pair of P and V operations on semaphores
E.  none is the above

Correct Answer: D. one which is enclosed by a pair of P and V operations on semaphores

37. Assembler language

A. is usually the primary user interface
B. requires fixed-format commands
C. is a mnemonic form of machine language
D. is quite different from the SCL interpreter
E. None of the above

Correct Answer: C. is a mnemonic form of machine language

38. The primary job of the operating system of a computer is to

A. command resources
B. manage resources
C. provide utilities
D. be user friendly
E. None of the above

Correct Answer: B. manage resources

39. Which of the following is a measure to test how good or bad a modular design is

A. Module strength
B. Module coupling
C. Static analysis
D. All of the above
E. None of the above

Correct Answer: A. Module strength

40. The Operating system manages

A. Memory
B. Processor
C. Disks and I/O devices
D. All of the above
E. None of the above

Correct Answer: D. All of the above

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