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.
The answer is administrative tools
It is true that the information provided in text aids can help us to understand a text's content before we even read it.
These text aids will contain bits and pieces from the text, which will make us understand the overall message even before we actually get down to going through the text itself. I believe it is better to actually read the text, and try to understand it on your own, before going to these aids for help.