BTA CBDE study guide
BTA CBDE · Work through your exam, one topic at a time.
The Certified Blockchain Developer Ethereum (CBDE) is a vendor-issued credential from Blockchain Training Alliance (BTA) aimed at developers who build on Ethereum. BTA describes itself as training the world's leading companies since 2017 and offers enterprise training, self-paced courses, certification, and exam study guides through its site. The credential is best suited to programmers who already write code and want to demonstrate practical Ethereum development skill - Solidity contracts, development tooling, and application integration - rather than to non-technical learners seeking a general blockchain primer. Because the official CBDE page currently returns a 404 error, this page cannot confirm the exam's length, time limit, passing score, fee, retake rules, or validity period; those details should be verified directly with BTA before you register. The BTA CBDE study guide has 5 sections and about 1,347 words.
01Ethereum Blockchain Development Fundamentals
Ethereum is a state machine: every block transitions a global state of accounts. Externally owned accounts (EOAs) are controlled by private keys and have no code; contract accounts have code and storage.
311 words, about 2 min02Smart Contract Development with Solidity
Solidity is statically typed and compiled to EVM bytecode. Master data locations: storage (persistent, expensive), memory (temporary, per call), and calldata (read-only input).
249 words, about 1 min03Ethereum Development Tools and Frameworks
Know what each layer does. Compilers (solc) turn Solidity into ABI and bytecode.
291 words, about 1 min04Decentralized Application (DApp) Architecture and Integration
A DApp combines on-chain contracts with off-chain clients. The frontend talks to the chain through a provider (JSON-RPC or an injected wallet).
252 words, about 1 min05Testing, Security, and Deployment Practices
Layer tests: unit tests for functions, integration tests for contract interactions, and fork tests against real network state. Use assertions on state and events, and cover reverts with expected reasons.
244 words, about 1 min