Locked In: Architect Prep

A study aid for the AWS Certified Solutions Architect - Associate exam, exam code SAA-C03. Every question is a design decision: a stated requirement, several real services that could plausibly serve it, and one service that actually fits. WHAT IS INSIDE 35 topics mapped one to one onto the published exam outline, distributed in the published domain proportions: Design Secure Architectures 30%, Design Resilient Architectures 26%, Design High-Performing Architectures 24%, Design Cost-Optimized Architectures 20%. Two lessons per topic, 70 in total, one that teaches the idea and one that applies it. 175 original practice questions, 105 flashcards and 70 glossary entries. HOW THE QUESTIONS ARE WRITTEN Each question states a requirement, an availability target, a recovery point or recovery time objective, a latency budget or a cost ceiling, and asks which architecture meets it. The wrong answers are real services doing the wrong job, the kind of choice that reads as reasonable until you hold it against the constraint. Every explanation says why the correct answer is right and why the tempting wrong answer is wrong. ANSWER ORDER AND ANSWER LENGTH Answer options are dealt into a stable per-question order, so no option position becomes a habit. The app measures where its own correct answers fall, and how often the longest option is the correct one, and holds both near chance. PRACTICE AND REVIEW A timed practice form of 50 original questions in 100 minutes, drawn in the published domain proportions. Interactive scenario activities, sorting, sequencing and matching, four per domain, 16 in total. Spaced repetition that resurfaces what you got wrong. Progress by domain, bookmarks and search. WHAT IS FREE 12 lessons, 12 questions and 12 flashcards in total, spread across the four domains, plus one scenario activity per domain. The free selection is fixed. It is usable without paying, without an account and without a network connection. WHAT THE UNLOCK ADDS One payment unlocks the full catalog: all 70 lessons, all 175 questions with worked explanations, all 105 flashcards, all 70 glossary entries, all 16 scenario activities, timed practice and spaced review. There is no subscription. HOW IT BEHAVES Fully offline. No account, no sign-up, no network needed, no ads, no analytics, no tracking, no data collection of any kind. ABOUT THE EXAM The exam is 65 questions in 130 minutes, passing at 720 on a 100 to 1000 scale. AWS certifications expire after three years. This app is a study aid, not an official simulation. It makes no score prediction and offers no pass guarantee. INDEPENDENCE This app is independent and is not affiliated with, endorsed by or sponsored by Amazon Web Services. It contains no official AWS questions or courseware.