Hardware, Software and Security MCQs – Page 2

Solved MCQs on computer hardware, memory and storage, software types, number systems, computer generations and cyber security threats.

1. 21

   A program that looks useful but secretly performs harmful actions is called a:

   AFirewallBWormCPatchDTrojan horse

   Correct answer: D. Trojan horse

   Like the wooden horse of the Greek legend, a Trojan disguises itself as legitimate software to trick users into installing it.

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2. 22

   Fake emails or messages designed to trick people into revealing passwords or bank details are known as:

   ASpoofingBPhishingCSpammingDHacking

   Correct answer: B. Phishing

   Phishing messages imitate trusted organizations to steal sensitive information. Never share passwords or OTP codes through such links.

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3. 23

   Two-factor authentication (2FA) improves security by:

   ARequiring a second form of verification in addition to a passwordBBlocking all emailsCEncrypting the hard disk twiceDUsing two passwords of the same type

   Correct answer: A. Requiring a second form of verification in addition to a password

   2FA combines something you know (a password) with something you have (such as a phone code) or something you are (a fingerprint).

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4. 24

   Which device is used to print large drawings such as maps and engineering designs?

   APlotterBDot-matrix printerCProjectorDScanner

   Correct answer: A. Plotter

   Plotters produce large, precise line drawings and are used in engineering, architecture and mapping.

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5. 25

   The main circuit board that connects all the parts of a computer is called the:

   AHard diskBMotherboardCGraphics cardDPower supply

   Correct answer: B. Motherboard

   The CPU, RAM, storage and expansion cards all connect through the motherboard.

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