(a)
Characteristics of networks and the importance of protocols and standards
(b)
The Internet structure:
- IP stack
- Domain Name Server (DNS)
- Protocol layering
- Local Area Network (LAN) and Wide Area Network (WAN)
- Packet switching and circuit switching
(c)
Network security and threats, use of firewalls, proxies, and encryption
(d)
Network hardware
(e)
Network models:
- client-server
- peer-to-peer