3.3. Firewalls and Network Security Tools

Try these first

1. 1.

   What does a firewall do?

   Hint

   Think of it as a gatekeeper for your network.

2. 2.

   What is an Intrusion Detection System?

   Hint

   It watches but doesn't act.

3. 3.

   What type of firewall is a physical device protecting a network?

   • Software Firewall
   • Hardware Firewall
   • Both

   Hint

   Think about what you can touch.

4. 4.

   True or False: An IDS can actively block attacks.

   • True
   • False

   Hint

   Remember the roles of detection versus prevention.

5. 5.

   If a network is experiencing a DDoS attack, which system would ideally be in place and why?

   Hint

   Think about how attacks attempt to overwhelm a network's resources.

6. 6.

   Design a basic network security framework for a small business, integrating firewalls, IDS, IPS, and VPN.

   Hint

   Consider the flow of data and where each tool fits in to provide overlapping layers of protection.