Windows 2007
Windows 7
Windows 11
Windows 10
✅ The correct answer is C.
Admin
59. What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them?
Partitioning
Multitasking
Windowing
Paging
✅ The correct answer is B.
62. Which of the following is not a characteristic of a daisy chaining priority control scheme?
priority is programmable
it is relatively easy to add more devices to the chain
the failure of one device may affect other devices on the chain
the number of control lines is independent of the number of devices on the chain
✅ The correct answer is A.
26. A program that converts a high-level language program to a set of instructions that can run on a computer is called a
Compiler
Debugger
Editor
All of the above
✅ The correct answer is A.
29. While running DOS on a PC, which command would be used to duplicate the entire diskette?
COPY
DISKCOPY
CHKDSK
TYPE
✅ The correct answer is B.
32. The term “operating system” means
a set of programs which controls computer working
the way a computer operator works
conversion of high level language into machine code
the way a floppy disk drive operates
✅ The correct answer is A.
34. The memory allocation scheme subject to “external” fragmentation is
segmentation
swapping
pure demand paging
multiple contiguous fixed partitions
✅ The correct answer is A.
36. Which is not external command?
Doskey
Verify
Print
Find
✅ The correct answer is B.
38. Multi programming systems ……
Are easier to develop than single programming system
Execute each job faster
Execute more jobs in the same time period
Are used only by large mainframe computer
✅ The correct answer is C.
40. Which of the following is characteristic of an operating system?
resource management
error recovery
memory management
All the above
✅ The correct answer is D.