Related Questions

Which of the following represents examples of an IT input device, output device and storage device respectively ?
A bar code reader, CD drive, projector
B keyboard, monitor, hard disc
C printer, DVD drive, joystick
D printer, mouse, monitor
Which command is used to list out all the hidden files along with the other files?
A ls -l
B ls -x
C ls -F
D ls -a
E None of the above
Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories?
A rm *
B rm -r *
C rm all
D rm *.*
E None of the above
Filename extensions help identify certain files. What filename extension identifies executable files?
A INF
B PRO
C EXE
D SYS
E None of the above
On-line transaction processing is used when ______________. I) it is required to answer random queries. II) it is required to ensure correct processing. III) all files are available on-line. IV) all files are stored using hard disk.
A i, ii
B i, iii
C ii, iii, iv
D i, jj ,iii
Batch files contain a group of MS-DOS commands that are run in successive order. What filename extension identifies batch files?
A COM
B BAT
C EXE
D SYS
E None of the above
Filename extensions help identify certain files. What filename extension identifies command files?
A COM
B BAT
C EXE
D SYS
E None of the above
The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain?
A Bits
B Characters
C Data field
D Schema
E None of the above
Which of the following files contains information related to password aging?
A Shadow
B password
C profile
D All the three
E None of the above
Solution X contains 40% salt and 60% water by weights, Solution Y contains 25% salt and 75% water. If a mixture of X and Y contains 30% salt. What percent of the weight of this mixture is solution X?
A 10%
B 33.3%
C 40%
D 42.5%

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