119 tests · 11 categories
Computing tests
Every test starts with a short course and ends with a quiz. Missed questions come back with the right answer and why it is right. No account and no timer.
6 tests
- Easy
Cybersecurity basics
Passwords, phishing, encryption and the habits that stop most real attacks.
8 questions7 min - Medium
Networking basics
What happens between typing an address and the page arriving.
8 questions7 min - Medium
Linux and the command line
Files, permissions, pipes and processes, from a shell prompt.
8 questions7 min - Hard
System design basics
Scaling, caching, queues and the trade-offs behind every architecture diagram.
8 questions8 min - Medium
Cloud computing basics
Renting computers by the hour, and the bills and habits that come with it.
8 questions7 min - Easy
Computer hardware
What each component does, and which one is actually slowing you down.
8 questions7 min