OCR Computer Science A Level
Advanced Notes
1.3.3 Networks
Advanced Notes
, Specification
1.3.3 a)
● Characteristics of a Network
● Importance of Protocols and Standards
1.3.3 b)
● The internet Structure:
○ The TCP/IP stack
○ Protocol Layering
○ LANs and WANs
○ DNS
○ Packet and Circuit Switching
1.3.3 c)
● Network Security and Threats
● Firewalls
● Proxies
● Encryption
1.3.3 d)
● Network Hardware
1.3.3 e)
● Client-server
● Peer-to-peer
Advanced Notes
1.3.3 Networks
Advanced Notes
, Specification
1.3.3 a)
● Characteristics of a Network
● Importance of Protocols and Standards
1.3.3 b)
● The internet Structure:
○ The TCP/IP stack
○ Protocol Layering
○ LANs and WANs
○ DNS
○ Packet and Circuit Switching
1.3.3 c)
● Network Security and Threats
● Firewalls
● Proxies
● Encryption
1.3.3 d)
● Network Hardware
1.3.3 e)
● Client-server
● Peer-to-peer
