API keys identify a caller; OAuth delegates a user's authority. The scored answer picks by who is acting and on whose behalf, and makes API keys as safe as they can be when used.
Make your first attempt
What would you say before reading the answer?
- 01 State the assumptions your answer depends on.
- 02 Explain the mechanism and choose a control.
- 03 Name a condition that would change your decision.
The worked answer includes an approach, scoring criteria and follow-up questions. Compare the reasoning with your own.
10 answers per topic instead of 5, plus saved progress and bookmarks · costs nothingor unlock all 529 remaining answers · $25
Every worked answer in all 17 topics, every lesson in every course, the full concept curriculum, the complete practice-test bank, and the downloadable security field guides.
6 months · One payment · No auto-renewal