Foundation exercises

Two focused exercises on redirect lookup and requirement tracing. Both drafts are kept in memory while you switch between them.

Trace a redirect lookup

A person visits https://example.com/abc123. The application looks up code abc123 in the durable store.

Choose the scenario

Your explanation

Describe what happens at each step and what the person sees.

Worked trace

Self-review

Mark points you can explain in your own words. The page does not judge correctness.

The lookup reads from the durable store, not a cache or the application's memory.

The response differs for a known code versus an unknown code.

The client follows the redirect or displays the error — the application only sends the response.

Both exercises use synthetic example.com URLs. Exercise text is not uploaded or stored. Drafts are kept in memory while switching tabs; a page reload clears them.

Foundation exercises

Trace a redirect lookup

Choose the scenario

Your explanation

Self-review

Connect a requirement to the design

Choose a requirement

Your connection

Self-review