1 point __________ is a combination of hardware and software that forms a barrier between systems, or different parts of a single system to protect those systems from unauthorized access.

Firewall that will protect the system from unauthorized access. While we are working on any network the security is essential part for us, so the use of firewall could protect and keep us secure.

Firewalls are available either in software or hardware and it is also available in the combination of both. System protection from unauthorized access and usage of data without permission could damage the integrity of data and system as well.

There are three types of firewalls.

Packet Filters
Stateful Inspection
Proxy Server
The external firewall is usually located at the extreme corner of the network the network is either local or wide area.

Firewall is been used by lot of companies those are providing the facility of clouds or data safety. Such companies use the firewall which will protect the data , no one from outside would access the data and the data remain safe. so in this context the company can maintain the integrity and customer trust as well. The companies can retain their customers easily by just using the hardware or software firewall or the combination of both which will not let any unauthorized user to access the data. The firewall will simply throw the unauthorized person or they would block the unauthorized person as well.