Networks
T
Network Design and Performance
GCSE-style stretch. Expect multi-step reasoning and exam vocabulary.
Computer Science · Hard
5
questions · ~4 min · 3 hints each (−5 pts)
Confidence tracking, 3-tier hints and instant feedback.
What you'll learn
Each question helps you build key knowledge and skills.
- 1Choosing a network topology involves balancing cost, reliability and performance, with star topologies offering a good compromise and mesh topologies offering maximum redundancy at higher cost.
- 2Latency, the delay in data transmission, and bandwidth, the capacity of a connection, are separate concepts that both affect the quality of services like video calls and online gaming.
- 3Packet switching allows data to be split into packets that travel independently across a network and are reassembled at the destination, helping networks cope with congestion.
- 4Layered protocol models such as TCP/IP allow hardware and software from different manufacturers to interoperate reliably across the internet.
- 5Security and design decisions, such as combining firewalls with routers or choosing encryption for HTTPS, are essential considerations when building real world networks.
Question mix
A mix of question types to build your skills.
- Multiple choice×4
- Short answer×1
Different question types help you think in different ways.
How it works
A simple 3-step process
- 1
Rate your confidence
Tell us how sure you feel before answering. It helps us understand your starting point.
- 2
Use hints if stuck
Get up to 3 helpful hints per question. Each hint costs 5 Treasure Points.
- 3
See what went wrong
Get instant feedback with clear explanations, so you can learn and improve.
Ready when you are
This takes about 4 minutes.

