Computer (Part-4)

Total Questions: 50

21. What do you call a key on a computer keyboard that is used to move the pointer (cursor) around on the screen? [S.S.C. Online CHSL (T-I) 4.08.2021 (Shift-I)]

(a) Control key
(b) Navigation key
(c) Numeric key
(d) Function key

Correct Answer: (b) Navigation key

Solution:In computers, keyboard navigation keys are used to move the cursor or mouse pointer around the document area on the screen.
These are

Left Arrow,
Right Arrow,
Up arrow
Page down,
Page up,
home
and end keys.

22. _____ is the process of turning on a computer and powering up the system. [S.S.C. Online CHSL (T-I) 4.08.2021 (Shift-I)]

(a) Saving
(b) Execution
(c) Booting
(d) Loading

Correct Answer: (c) Booting

Solution:Booting is a startup sequence that starts a computer's operating system when it is turned on.

A boot sequence is the initial set of operations that the computer forms when switched on.

Every computer has a boot sequence.

The average computer doesn't understand the boot sequence but is important to know for customizing and trouble shooting your computer.

23. Which of the following is the first working prototype of Internet? [S.S.C. Online Graduation Level (T-I) 4.06.2019 (Shift-II)]

(a) APNET
(b) PANET
(c) ARPANET
(d) ANET

Correct Answer: (c) ARPANET

Solution:The first workable prototype of the Internet came in the late 1960s with the creation of ARPANET, or the Advanced Research Projects Agency Network.

Originally founded by the US Department of Defence, ARPANET used packet switching to allow multiple computers to communicate on a single network.

24. Corel Draw is an example of a/an: [S.S.C. Online CHSL (T-I) 04.08.2021 (Shift-II)]

(a) database software
(b) accounting software
(c) spreadsheet software
(d) desktop publishing software

Correct Answer: (d) desktop publishing software

Solution:Corel DRAW is the best Desktop publishing software that empowers users to create illustrations containing graphics, text and photographs.

Corel has an extensive range of tools which enable the user to edit any shape or character with ease and precision, fit text to curves and create custom color separations.

It is developed and marketed by Corporation of Ottawa.

This tool can open files: Adobe PageMaker, Microsoft Publisher and Word, and other programs can print documents to Adobe PDF using the Writer printer driver, which such software can then open and edit every aspect of the original layout and design.

25. What do you call an event where a computer becomes unresponsive due to a program or the system becoming unresponsive and no longer taking input? [S.S.C. Online CHSL (T-I) 12.04.2021 (Shift-II)]

(a) Moving
(b) Booting
(c) Ejecting
(d) Hanging

Correct Answer: (d) Hanging

Solution:When a computer becomes unresponsive and no longer accepts input, it's generally referred to as hanging or freezing.

This can occur due to a program becoming unresponsive, or because the system itself is frozen, making it impossible to interact with the computer.

26. Programs that duplicate the functionality of one system on another system is known as_______ . [S.S.C. Online Graduation Level (T-I) 6.09.2016 (Shift-II)]

(a) Emulators
(b) Simulators
(c) Evaluators
(d) PCB

Correct Answer: (a) Emulators

Solution:In computing, an emulator is hardware or software that enables one computer system (called the host) to behave like another computer system (called the guest).

An emulator typically enables the host system to run software or use peripheral devices designed for the guest system.

Emulation refers to the ability of a computer program in an electronic device to emulate (or imitate) another program or device.

27. The transfer of data from one application to another in a computer system is known as _____ . [S.S.C. Online CHSL (T-I) 15.01.2017 (Shift-II)]

(a) Dynamic Data Exchange
(b) Dodgy Data Exchange
(c) Dogmatic Data Exchange
(d) Dynamic Disk Exchange

Correct Answer: (a) Dynamic Data Exchange

Solution:Dynamic Data Exchange (DDE) is an inter-process communication mechanism developed by Microsoft for Windows that allows different applications to exchange data.

It works by establishing a conversation between two applications, one acting as a client and the other as a server, where the client can request information from the server or send commands, and the server can provide data or perform actions.

DDE is a foundational technology used in early versions of Windows and OS/2, and while newer technologies have emerged, it remains relevant for legacy systems and specific use cases.

28. Cache memory works on the principle of _________ . [S.S.C. Online Graduation Level (T-I) 7.09.2016 (Shift-III)]

(a) Locality of data
(b) Locality of reference
(c) Locality of memory
(d) Locality of memory & reference

Correct Answer: (b) Locality of reference

Solution:

Cache memory operates based on the principle of locality of reference. It's worth mentioning again that this principle has two key components:

Temporal Locality:
Recently accessed data and instructions are likely to be accessed again soon.

Spatial Locality:
Data and instructions located near recently accessed ones are also likely to be accessed soon.
By exploiting these tendencies, cache memory significantly speeds up data retrieval for the processor.

29. Which of the following is not a format for storing images on a computer? [S.S.C. Online MTS (T-I) 18.09.2017 (Shift-III)]

(a) .bmp
(b) All are image formats
(c) .jpg
(d) .png

Correct Answer: (b) All are image formats

Solution:

JPEG (Joint Photographic Experts Group):
A widely used format, especially for photographs, known for its compressed nature.

PNG (Portable Network Graphics):
Offers lossless compression, often used for web graphics due to its ability to support transparency.

BMP (Bitmap):

A standard format, particularly on Windows systems, known for its simplicity but can result in large file sizes.

30. When did Apple first release Safari? [S.S.C. Online CHSL (T-I) 19.03.2020 (Shift-II)]

(a) 2001
(b) 2003
(c) 1998
(d) 2002

Correct Answer: (b) 2003

Solution:Apple introduced the Safari web, on January 7, 2003.

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