Blockchain CBDE : BTA Certified Blockchain Developer - Ethereum

  • Exam Code: CBDE
  • Exam Name: BTA Certified Blockchain Developer - Ethereum
  • Updated: Sep 14, 2026     Q & A: 102 Questions and Answers

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BTA Certified Blockchain Developer - Ethereum CBDE Exam

BTA Certified Blockchain Developer - Ethereum CBDE Exam validates the candidate ability to plan and prepare production-ready applications for the Ethereum blockchain, write, test, and deploy secure Solidity smart contracts, understand and work with Ethereum fees, work within the bounds and limitations of the Ethereum blockchain and use the essential tooling and systems needed to work with the Ethereum ecosystem. It also deals with the ability to Implement web3.js, write and compile Solidity smart contracts, create secure smart contracts, deploy smart contracts both the live and test Ethereum networks, calculate Ethereum gas costs, unit test smart contracts and run an Ethereum node on development machines.

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What is the duration of the CBDE Exam

  • Format: Multiple choices, multiple answers
  • Passing score: 70%
  • Length of Examination: 90 minutes
  • Number of Questions: 70

Reference: https://blockchaintrainingalliance.com/products/cbde

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Blockchain CBDE Exam Syllabus Topics:

SectionWeightObjectives
Solidity Programming30%- Solidity syntax and data types
- Smart contract design patterns
- Events, errors, and exceptions
- Functions, modifiers, and visibility
- Inheritance, interfaces, and libraries
Web3 Integration & Security10%- Common vulnerabilities and mitigation
- Contract upgradability and maintenance
- Secure coding practices
- Web3.js and Ethers.js usage
DApp Development & Deployment20%- Decentralized storage: IPFS
- Deployment to testnets and mainnet
- Frontend integration patterns
- Development tools: Truffle, Hardhat, Ganache
- Smart contract testing and debugging
Ethereum Architecture & EVM20%- Accounts, addresses, and state model
- Gas mechanics, fees, and optimization
- Ethereum Virtual Machine (EVM) fundamentals
- Transactions and message calls
- Ethereum network and node structure
ERC Standards & Tokenization20%- ERC-20 Fungible Tokens
- ERC-1155 Multi-Token Standard
- ERC-721 Non-Fungible Tokens (NFTs)
- Token economics and best practices

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