CCDV-F objective 2.3 · Domain 2 · 33.1% of the exam
Claude API Mechanics
The densest cluster of mechanism questions on the paper. Caching matches a prefix of the rendered bytes, and tool definitions render ahead of the system prompt, which between them explain most reports of reads stuck at zero. The asynchronous path is chosen on whether somebody waits for an individual result and never on volume, and its results return unordered, so reconciling them needs the identifier you sent with each request. Streaming changes when bytes arrive and nothing about what they cost.
9 questions · answers and explanations shown as you go · free, no sign-up
The rest of domain 2: Applications and Integration
This domain is 33.1% of a scored form, about 17 of the 53, spread across 6 objectives. Drill the whole domain or pick another objective below.
One objective is a narrow slice. A full-length timed mock is what tells you whether the whole thing holds together.
Sit a timed mock →