---

In this topic you will learn about:

---

1. Star and mesh network topologies
2. Wifi:

• frequency and channels
• encryption

3. Ethernet
4. The uses of IP addressing, MAC addressing, and protocols including:

• TCP/IP (Transmission Control Protocol/Internet Protocol)
• HTTP (Hyper Text Transfer Protocol)
• HTTPS (Hyper Text Transfer Protocol Secure)
• FTP (File Transfer Protocol)
• POP (Post Office Protocol)
• IMAP (Internet Message Access Protocol)
• SMTP (Simple Mail Transfer Protocol)

5. The concept of layers
6. Packet switching.