Blockchain CBDE Exam : BTA Certified Blockchain Developer - Ethereum
- Exam Code: CBDE
- Exam Name: BTA Certified Blockchain Developer - Ethereum
- Updated: Oct 23, 2026
- Q & A: 102 Questions and Answers
About Blockchain CBDE Exam Questions
Sample before you commit. The DumpsActual product pages carry a free sample-questions module and a downloadable PDF demo of the Blockchain BTA Certified Blockchain Developer - Ethereum materials — 102 practice questions behind the full version, all inspectable in advance.
Blockchain CBDE Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Ethereum Fundamentals and Architecture | - Ethereum Virtual Machine (EVM) - Ethereum blockchain basics - Gas and transaction fee mechanics |
| Topic 2: Smart Contract Security | - Common vulnerabilities - Secure coding best practices |
| Topic 3: Development Tools and Testing | - Unit testing and deployment strategies - Use of development tools (e.g., Remix, Truffle) |
| Topic 4: Solidity Programming | - Error handling and events - Smart contract development - Solidity language fundamentals |
| Topic 5: Web3 and dApp Integration | - Web3.js integration - Decentralized application architecture |
CBDE Exam: What to Know Before You Buy
The official Blockchain BTA Certified Blockchain Developer - Ethereum outline defines 5 domains. The leading three are Ethereum Fundamentals and Architecture, Smart Contract Security, and Web3 and dApp Integration. The full list is in the topics section above, and DumpsActual's 102 practice questions cover each one.
The CBDE exam is a Blockchain certification exam validating the Blockchain BTA Certified Blockchain Developer - Ethereum syllabus shown above. It belongs to these credential paths: Certified Blockchain Developer - Hyperledger Fabric (CBDH), Certified Blockchain Solution Architect (CBSA), Other BTA Blockchain Developer Certifications. In a crowded 2026 job market, the credential demonstrates ability visibly — and DumpsActual prepares candidates with 102 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.
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Online proctored exam launched via the BTA student portal. Register for the Blockchain BTA Certified Blockchain Developer - Ethereum exam through these official channels:
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The Blockchain BTA Certified Blockchain Developer - Ethereum exam requires 70% to pass, and registration costs USD 275. A failed attempt means paying the same fee again — a readiness check with the DumpsActual engines before booking is the cheaper option.
Three versions of the same study materials: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows that simulates the real exam with two practice modes and works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 102 practice questions are identical across versions. Every purchase includes 365 days of free updates — pushed to you automatically whenever the bank is revised — plus a 50% renewal discount afterward and unlimited computer installations.
The Blockchain BTA Certified Blockchain Developer - Ethereum exam contains 70 to complete within 90 minutes. Timed simulation in the DumpsActual Desktop Test Engine teaches that rhythm before exam day does.
Blockchain recommends these training resources for the Blockchain BTA Certified Blockchain Developer - Ethereum exam:
Follow the training with steady self-testing — the 102 practice questions from DumpsActual help you apply theory and fill any gaps the training leaves.
No formal prerequisites; recommended experience with programming and basic blockchain concepts. Since requirements change over time, confirm the latest on the official Blockchain exam page before scheduling.
Blockchain BTA Certified Blockchain Developer - Ethereum Sample Questions:
To store almost all data in the Ethereum Blockchain:
- A. a Radix Trie is used because the Merkle Patricia Trie is too inefficient.
- B. a Linked List with pointers to previous blocks hashes is used.
- C. a Merkle Patricia Trie is used.
Correct Answer: C 🗳️
.Require is used:
- A. to check internal states that should never happen.
- B. to check input arguments from users.
Correct Answer: B 🗳️
Smart Contracts:
- A. are having the same address as the EOA.
- B. are always living on the same address, because the blockchain is deterministic. So, one account can always have one smart contract.
- C. the address of the smart contract is a random address which gets generated by the miner who mines the contract-creation transaction.
- D. are sitting on their own address. The Address is created from the nonce and the EOA address and could be known in advance before deploying the smart contract.
Correct Answer: D 🗳️
With the truffle config file you can manage:
- A. you can manage your secret API keys to the Ethereum Network. This way you can get access to several different Ethereum nodes at the same time without the need to switch your keyfiles.
- B. different Networks to deploy your contracts to. This way you can easily deploy to a local blockchain, the main-net or the Ropsten/Rinkeby Test-Net with only one parameter.
- C. the amount of gas your contract deployment and transactions, against your contract, will need. This way you can essentially lower the gas costs over traditional web3.js dApps.
Correct Answer: B 🗳️
To avoid issues during Ethereum platform upgrades:
- A. it's good to have the ability to pause a contract in order to manage the money at risk.
- B. Ethereum doesn't upgrade the platform. It's fixed and final.
- C. it's good to inform users about the updates via a newsletter.
Correct Answer: A 🗳️
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