Question

1. What roles does a firewall perform?

2.Most enterprise networks use both host firewalls, such as Windows Firewall and network firewalls. Why would you want to use both?

3.Which tool should you use to modify firewall rules on a Windows server?

4.In the lab, you enabled a firewall rule that allowed users on an external network to connect to a Web server using HTTP. Which port is used for these connections?

5.Can a host-based firewall help defend against malware and viruses?

Answer 1

1. A firewall is installed between two networks, typically an external and an internal network. The job of a firewall is to filter incoming and outgoing traffic based on the rules set by the administrator. These rules helps in evaluate what kind of data can be transferred back and forth on the network.

2. Windows Firewall is a software which comes along Windows OS and it helps to prevent users to run potentially harmful or malicious programs that can communicate using the network firewall. Network Firewall is the first wall of defence in a network, it filters hardwares that can connect to the network.
The reason enterprises prefer both of these is that Network Firewall helps filter the hardwares and Windows Firewall helps filter programs that can connect to the network and prevent malicious activity.

3. One can use windows Powershell to modify firewall rules on a Windows server.

4. Yes, a host-based firewall helps to defend against malware and viruses.