Tests · Backend and databases
Backend and databases
PHP, Laravel, SQL, API design, queues and caching — what decides whether a site survives its second thousand customers.
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Tests in this topic
2 tests at the “Medium” level. Clear the filter to see the whole topic.
Updated August 9, 2026Medium
Designing a REST API
Ten questions on how an HTTP API is put together: which status code to return, how 401 differs from 403, what idempotency buys you, how to page through a long list, and why the browser complains about CORS. For anyone who has written backend code and wants to check themselves.
- Questions in the test
- 10 questions
- Time limit
- 10 min
Updated August 9, 2026Medium
Laravel: Eloquent and migrations
Ten questions on day-to-day Eloquent work: relationships and their keys, N+1 and with(), scopes, fillable, casts and mutators, migrations and rollback, factories, soft deletes, model events. Every question shows real code and asks what actually happens.
- Questions in the test
- 10 questions
- Time limit
- 10 min