Answer :
Answer:
Firewall is the correct answer for the above question.
Explanation:
- A firewall is used to block unwanted sites for any users of the network. It can be software or hardware or both. It is also called a system because it can be a mixture of the software and the hardware.
- It is used to block unwanted sites. When any user does not want to access any sites from the computer system, then he blocks the sites with the help of this.
- The above question asked about the system which is used to block unwanted information. This system is known as a firewall. Hence the answer is FIrewall.