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. 1

    Rate your confidence

    Tell us how sure you feel before answering. It helps us understand your starting point.

  2. 2

    Use hints if stuck

    Get up to 3 helpful hints per question. Each hint costs 5 Treasure Points.

  3. 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.