IT &computer MCQ section 2 Practice Questions Answers Test with Solutions & More Shortcuts
IT & computer PRACTICE TEST [7 - EXERCISES]
IT &computer MCQ section 1
IT &computer MCQ section 2
IT &computer MCQ section 3
IT &computer MCQ section 4
IT &computer MCQ section 5
IT &computer MCQ section 6
IT &computer MCQ section 7
Question : 16 [FCI Asst Grade-III 2012]
Where are programs and data to be used by the computer available?
a) Storage
b) Processing Unit
c) Output
d) Input
Answer »Answer: (a)
In a computer, storage is the place where data is held in an electromagnetic or optical form for access by a computer processor. It is a technology consisting of computer components and recording media used to retain digital data. It is a core function and fundamental component of computers.
Question : 17 [SSC CPO 2016]
Which of the following commands is called as three-finger salute in computers ?
a) Ctrl + Shift + Enter
b) Ctrl + Alt + Delete
c) Ctrl + Shift + Escape
d) Ctrl + Alt + Arrow key
Answer »Answer: (b)
The three-finger salute refers to the original PC-compatible system command to reboot or restart a computer by pressing three keys simultaneously: Control, Alt and Delete.
The three-key combination of Control-Alt-Delete is specifically designed to be impossible to execute with one hand in order to avoid the potential for accidental reboots. It was developed by David Bradley.
Question : 18 [SSC LEDO 2011]
What is the process of defining tables called ?
a) Index definition
b) Data definition
c) Data Normalisation
d) Data administration
Answer »Answer: (a)
The process is known as index definition. The order in which columns are listed in the index definition is important.
Question : 19 [SSC Exam 1997]
What is the size of Floppy Diskette which is used normally ?
a) 4"
b) 3½"
c) 5"
d) 3"
Answer »Answer: (b)
A floppy disk is a thin magnetic-coated disk contained in a flexible or semi-rigid protective jacket. Data is stored in tracks and sectors. The floppy disks are usually 3.5" in size.
However, older floppy disks may be in use; these would be 5.25" in size. Double-sided high density 3.5" disks can hold 1.44 Mb of data.
Question : 20 [SSC CML 2002]
The name “modem” is derived from
a) modern demodulator
b) modern demarkator
c) modulator demand
d) modulator demodulator
Answer »Answer: (d)
A modem (modulator-demodulator) is a device that modulates an analogue carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information.
The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data.
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IT & computer Shortcuts »
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