COMPUTER NETWORKING

NETWORK SECURITY

INTRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the function of a firewall?
A
Filters email that is sent by attacker
B
Prevents malware and hackers from accessing a system
C
Blocks unauthorised access in to and out of a network
D
All of the above
Explanation: 

Detailed explanation-1: -At its most basic, a firewall is essentially the barrier that sits between a private internal network and the public Internet. A firewall’s main purpose is to allow non-threatening traffic in and to keep dangerous traffic out.

Detailed explanation-2: -The correct answer is For security. A Firewall is a network security device that monitors incoming and outgoing network traffic and permits or blocks data packets based on a set of security rules.

Detailed explanation-3: -Threat defense. Logging and audit functions. Traffic filtering. Controlling and blocking access. Secure remote access.

There is 1 question to complete.