Computer Science · Theme A: Concepts of computer science

A2.2 — Network architecture

Computer Science · SL / HL · syllabus-mapped notes

1. CS_A2.2.1

   Network topologies

   Star, mesh and hybrid, judged on reliability, speed, scalability, collisions and cost.

2. CS_A2.2.2

   The function of servers

   DNS, DHCP, file, mail, proxy and web servers, by function, scalability, reliability and security.

3. CS_A2.2.3

   Client-server vs peer-to-peer

   The benefits and drawbacks of the two networking models.

4. CS_A2.2.4

   Network segmentation

   Segmenting, subnetting and VLANs for performance and security.