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CompTIA

220-802 · Question #414

Which of the following is BEST used to prevent other people from viewing a user's computer screen?

The correct answer is D. Privacy filter. A privacy filter is a physical panel placed over a monitor screen that uses micro-louver technology to drastically narrow the viewing angle. Only the user sitting directly in front of the screen can see the content; anyone viewing from the side sees a blank or darkened screen…

Hardware

Question

Which of the following is BEST used to prevent other people from viewing a user's computer screen?

Options

  • AAnti-virus software
  • BKey fob
  • CBiometric device
  • DPrivacy filter

How the community answered

(32 responses)
  • B
    3% (1)
  • C
    3% (1)
  • D
    94% (30)

Explanation

A privacy filter is a physical panel placed over a monitor screen that uses micro-louver technology to drastically narrow the viewing angle. Only the user sitting directly in front of the screen can see the content; anyone viewing from the side sees a blank or darkened screen. This directly prevents visual eavesdropping (shoulder surfing). Anti-virus software (A) protects against malware, not visual observation. A key fob (B) is a two-factor authentication token for system access. A biometric device (C) is used for identity authentication-none of these prevent someone from looking at the screen.

Topics

#privacy filter#screen security#physical security#visual eavesdropping

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