Deep Dive: Why Topology Matters
Part of Network Topologies · GCSE GCSE Computer Science revision
This deep dive covers Deep Dive: Why Topology Matters within Network Topologies for GCSE Computer Science. Revise Network Topologies in 3.5 Fundamentals of Computer Networks for GCSE Computer Science with 16 exam-style questions and 18 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 3 of 12 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 12
Practice
16 questions
Recall
18 flashcards
Deep Dive: Why Topology Matters
Network topology determines how data flows, what happens when failures occur, and how much the network costs:
- Reliability: Does the whole network collapse if one part fails? Or can data find alternative routes?
- Cost: How much cable do you need? Simple topologies use less cable but may be less reliable
- Performance: Can data travel directly, or must it pass through a central point causing bottlenecks?
- Scalability: How easy is it to add new devices without disrupting the network?
The key principle: You must balance reliability, cost, and performance based on your needs. Mission-critical systems (hospitals, data centers) use expensive but reliable mesh. Home and office networks use cheaper star topology!
Keep building this topic
Read this section alongside the surrounding pages in Network Topologies. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Network Topologies
In a star network topology, all devices connect to which central component?
State two advantages of a mesh network topology. [2 marks]
Quick Recall Flashcards
16 questions on Network Topologies — practise free
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