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Exam Information
Official specifications published by Blockchain
Exam Format
Registration
Validity
CBDE Exam Topics and Domains
CBDE is organized into 5 weighted domains. Expect to work with Solidity, Mainnet, OpenZeppelin, Remix IDE, and more.
Ethereum Fundamentals and Architecture
Ethereum Blockchain Basics
- Understand Ethereum network architecture
- Work within the bounds and limitations of the Ethereum blockchain
- Run an Ethereum node on development machines
Gas and Transaction Management
- Calculate Ethereum gas costs
- Understand and work with Ethereum fees
Solidity Programming
Solidity Language Fundamentals
- Write and compile Solidity smart contracts
- Implement proper data structures
- Use appropriate function modifiers
Smart Contract Development
- Plan and prepare production ready applications for the Ethereum blockchain
- Implement proper error handling
- Use events for logging and monitoring
Smart Contract Security
Security Vulnerabilities
- Create secure smart contracts
- Write, test, and deploy secure Solidity smart contracts
- Identify and prevent common vulnerabilities
Development Tools and Testing
Development Environment
Use the essential tooling and systems needed to work with the Ethereum ecosystem
Testing and Deployment
- Unit test smart contracts
- Deploy smart contracts both the live and test Ethereum networks
Web3 and DApp Development
Web3.js Implementation
- Implement web3.js
- Build decentralized applications
- Handle blockchain interactions from frontend
How do I earn this certification?
Passing CBDE earns the Certified Blockchain Developer - Ethereum certification. It sits in the Blockchain Development track.
- CBSA - Certified Blockchain Solutions Architect
- CBSP - Certified Blockchain Security Professional
- CBDH - Certified Blockchain Developer - HyperledgerEnterprise blockchain development skills
- CDA - Certified DeFi Analyst Decentralized finance specialization
- AWS-BLK - AWS Certified Blockchain Cloud-based blockchain solutions
Practice with Precision
The PlanetCert Simulator mirrors the real exam environment with authentic questions and timed pressure.
How to study for this exam?
The most effective way to prepare for CBDE is by using the PlanetCert Simulator to practice questions and review detailed explanations.
What's changed on this exam?
- ACTIVE
- Last content update: 2024-01-01
- Solidity 0.8.26 New language features may appear in exam questions • Release date: 2024-05-21
- Web3.js 4.x Major version update with breaking changes • Release date: 2023-07-01
- Hardhat 2.22.x Updated tooling and testing frameworks • Release date: 2024-08-01
Who should take this exam?
This exam is typically taken by Software Engineers and Programmers.
- Software development experience
- Basic understanding of blockchain technology
- Familiarity with programming concepts
- Experience with JavaScript or similar languages