COMPUTER NETWORKING

NETWORK SECURITY

INTERNET SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What does a firewall do?
A
Blocks unwanted data from the Internet
B
Installs Viruses
C
Give you SD cards
D
Blocks all content
Explanation: 

Detailed explanation-1: -A firewall is a network security device that prevents unauthorized access to a network. It inspects incoming and outgoing traffic using a set of security rules to identify and block threats. A firewall can be physical hardware, digital software, software as a service (SaaS) or a virtual private cloud.

Detailed explanation-2: -A Firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization’s previously established security policies. At its most basic, a firewall is essentially the barrier that sits between a private internal network and the public Internet.

Detailed explanation-3: -Firewalls scan packets for malicious code or attack vectors that have already been identified as established threats. Should a data packet be flagged and determined to be a security risk, the firewall prevents it from entering the network or reaching your computer.

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