Developer C · Web

1. Verified gradeAAdvancedQ&A 90.6%High confidence25 Aug 2026

   Confirmed at this level against the evidence on file.

   Q&A — 16 questions

   • CorrectWhy does semantic HTML matter? Give examples of semantic elements. · Web fundamentals · Basic 1pt
   • CorrectExplain the CSS box model. · Web fundamentals · Basic 1pt
   • CorrectWhen would you use flexbox and when grid? · Web fundamentals · Basic 1pt
   • CorrectWhat is the difference between `let`, `const` and `var`? · Web fundamentals · Basic 1pt
   • CorrectWhat are props and state in a component, and how do they differ? · Application development · Basic 1pt
   • CorrectExplain the event loop, and in what order `setTimeout(…, 0)` and a resolved Promise callback run. · Web fundamentals · Intermediate 2pt
   • CorrectHow does `async`/`await` relate to Promises, and how do you handle errors with it? · Web fundamentals · Intermediate 2pt
   • CorrectWhen should state be lifted up, and when do you need shared or global state? · Application development · Intermediate 2pt
   • CorrectWhen calling an API from a screen, which states must the UI handle? · Application development · Intermediate 2pt
   • CorrectWhy do list items need a stable `key`, and why is the array index a bad key? · Application development · Intermediate 2pt
   • CorrectHow do you make a form accessible? · Quality · Intermediate 2pt
   • CorrectCompare client-side rendering, server-side rendering and static generation. How do you choose? · Application development · Advanced 3pt
   • CorrectWhat are Core Web Vitals, and how would you improve a poor LCP? · Quality · Advanced 3pt
   • CorrectExplain XSS and how to prevent it. · Quality · Advanced 3pt
   • CorrectWhat is CORS and why does the browser enforce it? · Quality · Advanced 3pt
   • WrongA page feels slow when typing in a search box. How do you find and fix the cause? · Quality · Advanced 3pt

   Dimensions

   • KnowledgeA
   • ImplementationA
   • Code UnderstandingA
   • DebuggingA
   • DesignA
   • CommunicationA

   Independence from AI

   Can explain AI-generated codeYes

   Can modify AI-generated codeYes

   Can identify incorrect AI-generated codeYes

   Can debug without AIYes

   Can make technical decisions without blindly following AIYes

   Understands and controls the solution (100%).

   Evidence cited (5)

   • Real project contribution
   • Code review
   • Architecture explanation
   • Debugging task
   • Knowledge questions

   Assessor: Developer A· Skill owner review

2. Self assessmentAAdvanced20 Aug 2026

   Primary skill — day-to-day work in this area.

   Dimensions

   • KnowledgeA
   • ImplementationA
   • Code UnderstandingA
   • DebuggingA
   • DesignA
   • CommunicationA

   Recorded by the member· Self assessment

Append-only — a new assessment never overwrites an old one.