Firewalls and network protection in Intro to Computing - Draw & Build Visually

Draw This - beginner

Draw a simple diagram showing how a firewall protects a home network from the internet. Include the internet, firewall, home router, and devices like a laptop and smartphone. Show the flow of data and where the firewall blocks or allows traffic.

10 minutes

Hint 1

Hint 2

Hint 3

Hint 4

Grading Criteria

Internet, firewall, home router, and devices are clearly labeled

Firewall is placed between internet and home network

Arrows show data flow direction from internet to devices

Diagram shows firewall as a barrier controlling data flow

Use of different arrow styles or labels to indicate allowed or blocked traffic

Solution

Internet

↓

Laptop

This diagram shows the internet connected to a firewall. The firewall acts like a security guard checking all data coming in and out. It only lets safe data pass through to the home router. The router then sends data to devices like the laptop and smartphone. Any harmful data from the internet is blocked by the firewall before reaching the home network.

Arrows show the direction of data flow from the internet through the firewall to the home devices. The firewall is placed between the internet and the home network to protect all devices behind it.

Variations - 2 Challenges

[intermediate] Draw a flowchart showing how a firewall decides to allow or block incoming data packets based on simple rules like IP address and port number.

[advanced] Draw a detailed network protection diagram including a firewall, antivirus software on devices, and a VPN connection. Show how data flows securely through these layers.