Optional Practice Lab 1 of 4 · 20 min
Name the Identity Gap
Practice diagnosing connection errors, reading HTTP status codes correctly, sizing up a timing attack, and saying precisely what a shared secret does and does not prove.
Covers Lesson 1 · Lesson 2 · Lesson 3 · Lesson 4
What you will practice
- Diagnose whether a failure is a network problem or an application problem.
- Choose the HTTP status that matches an authentication outcome.
- Quantify how much a timing attack reduces the work of guessing a secret.
- State what a shared key proves and what it cannot prove.
Step 1 of 6
Pass with 80% · unlimited retries
0% correct
01
Read the failure
You run curl http://127.0.0.1:8092/healthz and get: curl: (7) Failed to connect to 127.0.0.1 port 8092: Connection refused What should you check first?