Modes of connection

Wired

Ethernet

Wireless

Wi-Fi

Bluetooth

Encryption

IP addressing and MAC addressing

Stanards

Common protocls including:

TCP/IP (Transmission Control Protocol/Internet Protocol)

HTTP (Hjyper Text Transfer Protocol)

HTTPS (Hyper Text Transfer Protocol Secure)

FTP (File Transfer Protocol)

IMAP (Internet Message Access Protocol)

SMTP (Simple Mail Transfer Protocol)

The concept of layers