Railways PYQCBT 1 2016

RRB NTPC · Question 63

Find the odd statement out in relation to firewall.

  1. Firewall can be a software.

  2. Firewall can be a hardware.

  3. Firewall can be a combination of software & hardware.

  4. Firewall protects computer from fire.

Show answer & explanation

Answer: (D) Firewall protects computer from fire.

Explanation

A firewall is a network-security system that monitors and filters traffic between a computer or network and the internet. It can be software, hardware, or a combination of both. It has nothing to do with physical fire; the name comes from fire walls in buildings, so 'protects the computer from fire' is the odd statement.