Computer Science - Operating Systems Concepts

41. 

The memory allocation scheme subject to "external" fragmentation is

A. segmentation
B. swapping
C. pure demand paging
D. multiple contiguous fixed partitions
E. None of the above

Answer: Option A

Explanation:

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42. 

While working with MS-DOS, which command will you use to transfer a specific file from one disk to another?

A. DISKCOPY
B. COPY
C. RENAME
D. FORMAT
E. None of the above

Answer: Option B

Explanation:

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43. 

What is the name of the operating system for the laptop computer called MacLite?

A. Windows
B. DOS
C. MS-DOS
D. OZ
E. None of the above

Answer: Option D

Explanation:

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44. 

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
B. indirect addressing
C. auto increment
D. auto decrement
E. None of the above

Answer: Option D

Explanation:

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45. 

What is the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer user's productivity?

A. Defined values
B. Fixed values
C. Default values
D. Special values
E. None of the above

Answer: Option C

Explanation:

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