COMPUTER FUNDAMENTALS

COMPUTER SOFTWARE

OPERATING SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the purpose of a firewall(Utility systems software)?
A
For security-scramble data using a key to encrypt so it can’t be understood. To decrypt a key is needed to put it into its original form.
B
For security-prevents unwanted access to or from a private network or the internet. Messages can be blocked based on criteria e.g. website addresses.
C
For security-scans for and removes malicious files.
D
For security-to block and remove programs designed to get your personal information.
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: -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-3: -A firewall can help protect your computer and data by managing your network traffic. It does this by blocking unsolicited and unwanted incoming network traffic. A firewall validates access by assessing this incoming traffic for anything malicious like hackers and malware that could infect your computer.

Detailed explanation-4: -A firewall is a security mechanism that prevents unwanted access to private data on your network. Firewalls also protect systems from harmful malware by establishing a barrier between trusted internal networks and untrusted external networks.

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