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- Section 1
16.
The technique for sharing the time of a computer among several jobs, which switches jobs so rapidly, so that each job appears to have the computer to itself is
- A.time sharing
- C.time domain
- B.time out
- D.FIFO
- Answer
- Report
Answer : [A]
17.
The most common security failure is
- A.carelessness by users
- B.depending on passwords
- C.too much emphasis on preventing physical access
- D.insufficient technology used to prevent breaches
- Answer
- Report
Answer : [A]
18.
Situations where two or more processes are reading or writing some shared data and the final result depends on who runs precisely and when, are called
- A.race conditions
- C.mutual exclusions
- B.critical sections
- D.message passing
- Answer
- Report
Answer : [A]
19.
In which addressing mode the contents of a register specified in the instruction are first decremented. and then these contents are used as the effective address of the operands?
- A.Index addressing
- C.Auto increment
- B.Indirect addressing
- D.Auto decrement
- Answer
- Report
Answer : [D]
20.
Which of the following capabilities is required for a system program to execute more than one program at a time?
- A.Word processing
- C.Virtual memory
- B.Compiling
- D.Multitasking
- Answer
- Report
Answer : [D]
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