Monitoring and Securing Networks 1

The _________________ layer is where applications like web browsers, email programs, and messaging apps are located. It helps users access and use the internet.

The ______________ layer breaks up data into small chunks called packets and ensures that they are sent and received properly. It also adds important information like the sender and recipient's port numbers.

The _____________ interface layer is where the actual communication with the physical network hardware takes place. It sends and receives packets over the network using technologies like Wi-Fi, Ethernet, and cellular networks.

The _____________ layer is responsible for moving packets between networks and routing them to the correct destination. It adds IP addresses to packets so they can be delivered to the right computer.

This item can be either hardware or software. It is like an extra layer of protection added to your network that can intercept traffic between machines and then, using a series of rules and processes, determine what is allowed to pass through.

• Router

• Wireless Access Point

• Switch

• Firewall