International Baccalaureate IB Computer Science

- The distinction between IPv4 and IPv6 addressing
- The differences between public IP addresses and private IP addresses, and between static IP addresses and dynamic IP addresses
- The role of network address translation (NAT) to minimise the use of IP addresses and to facilitate communication between private internal networks and the public internet.

Compare types of media for data transmission.
- Wired transmission via fibre optic cables and twisted pair cables
- wireless transmission
- The advantages and disadvantages of these three types of data transmission
- Factors to consider must include bandwidth, complexity of installation, cost, range, susceptibility to interference, attenuation, reliability, security.

Explain how packet switching is used to send data across a network.
- The process of segmenting data into packets with a routing header attached, and independently transmitting control information, allowing the data to be reassembled at the destination
- The role that switches and routers play in packet switching.

Explain how static routing and dynamic routing move data across local area networks. (HL only)
- The process of static routing, and its advantages and disadvantages
- The process of dynamic routing, and its advantages and disadvantages (explanation of a specific routing protocol is not required)
- Factors to consider must include configuration, maintenance, complexity, resource usage, convergence, scalability, network size.