# Codex · Mock Exam 1 A 50-item, domain-weighted independent mock exam for the OpenAI Academy Codex pathway, with full explanations and a readiness readout. Not an official OpenAI assessment. import PracticeExam from '../../../../components/PracticeExam.astro'; This is a full-length, domain-weighted **independent mock exam** for the **Codex** track. It is built from publicly available OpenAI learning objectives and is **not** an official OpenAI assessment, and not the Academy Codex assessments themselves. All 50 questions are new and do not repeat the domain-page items. Use this as your diagnostic: sit it first to find your two weakest domains. ## Instructions - **Time:** 60 minutes (our design choice for a 50-item mock; the Academy assessments are shorter, randomised selections from a larger bank). - **Items:** 50, multiple-choice and multiple-response. Each item states how many answers to select. - **Selection:** for multiple-response items you must select all correct options and no incorrect ones; partial selections are marked wrong. - **No guessing penalty:** answer every question. - **Target:** aim for **at least 80% raw** (≈ 40/50) before taking the real Academy Codex assessment, which passes at ≥ 80%. - Work each question before expanding the answer. ## Domain distribution | # | Domain | Items here | | --- | --- | --- | | 1 | Codex Fundamentals and Surfaces | 10 | | 2 | Core Coding Workflows | 12 | | 3 | Extending and Configuring Codex | 10 | | 4 | Team Adoption and Governance | 10 | | 5 | Scaling Across Teams and Systems | 8 | Total: 10 + 12 + 10 + 10 + 8 = **50 items**. ## Readiness interpretation This is an independent readiness indicator, not a score and not a prediction of any official result. | Raw score (of 50) | Band | Interpretation | | --- | --- | --- | | 45–50 | Strong readiness | 90%+; strong across all domains | | 40–44 | Assessment ready | 80–89%; at or above the Academy threshold | | 35–39 | Building confidence | 70–79%; close, target your weak domains | | under 35 | Keep learning | below 70%; revisit the domain pages before re-attempting | The 80% line is deliberate: it matches the Academy badge threshold. ## Take the mock exam Two ways to use the questions below: the **interactive mode** runs a timed sitting one question at a time and ends with your score, a per-domain breakdown and a full correction; the **review mode** underneath lists every question with its options one per line and the answer hidden until you ask for it.