COMPUTER NETWORKING

NETWORK SECURITY

INTRODUCTION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

An intranet is behind a network device, which gives some protection against hackers, viruses, and so on. Which is the network device?

A	Proxy server
B	VPN
C	Firewall
D	None of the three

Explanation:

Detailed explanation-1: -A firewall is a system designed to prevent unauthorized access to or from a private network. You can implement a firewall in either hardware or software form, or in a combination of both. Firewalls prevent unauthorized internet users from accessing private networks connected to the internet, especially intranets.

Detailed explanation-2: -Technical Network Security Technical security controls protect data that is stored on the network or which is in transit across, into or out of the network.

Detailed explanation-3: -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.

There is 1 question to complete.