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Last Updated: Oct 25, 2026
No. of Questions: 102 Questions & Answers with Testing Engine
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Some candidates tag key points on PDF pages; others review on a bus. Three versions of the Blockchain BTA Certified Blockchain Developer - Ethereum material from ActualTestsQuiz cover both — 102 practice questions for the CBDE exam.
Blockchain CBDE Exam Overview:
| Certification Vendor: | Blockchain Training Alliance |
|---|---|
| Exam Name: | Blockchain Training Alliance Certified Blockchain Developer - Ethereum (CBDE) Exam |
| Exam Number: | CBDE |
| Exam Format: | Multiple Choice |
| Available Languages: | English |
| Related Certifications: | Certified Blockchain Solutions Architect (CBSA) |
| Recommended Training: | Blockchain Training Alliance CBDE Training |
| Exam Registration: | Blockchain Training Alliance Certification Registration |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Online proctored exam |
| Pre Condition: | Recommended understanding of blockchain concepts and basic Ethereum development experience. |
| Official Syllabus URL: | https://blockchaintrainingalliance.com/certifications/cbde |
Blockchain CBDE Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Smart Contracts Development | - Contract structure, functions, and modifiers - Solidity programming fundamentals |
| Topic 2: Development Tools & Frameworks | - Deployment and migration workflows - Truffle, Hardhat, and testing frameworks |
| Topic 3: DApp Development | - Web3 integration - Frontend interaction with smart contracts |
| Topic 4: Ethereum Fundamentals | - Blockchain architecture and Ethereum ecosystem - Accounts, transactions, and gas model |
| Topic 5: Security and Best Practices | - Smart contract vulnerabilities - Secure coding practices |
Blockchain CBDE Exam: Quick Answers
Yes — download the free Blockchain BTA Certified Blockchain Developer - Ethereum demo and judge the quality yourself before paying; the whole content goes further than the demo, but the demo shows the style. Purchases include 365 days of free updates delivered by email; renew afterward at 50% off.
Recommended understanding of blockchain concepts and basic Ethereum development experience. Eligibility rules change over time, so verify the current requirements on the official page (official CBDE exam page) before registering.
The Blockchain BTA Certified Blockchain Developer - Ethereum is Blockchain's certification exam for Certified Blockchain Developer - Ethereum, at the Professional level. Related credentials include Certified Blockchain Solutions Architect (CBSA). Prepare efficiently: short review sessions anywhere, mock exams when you have a desk.
The Blockchain BTA Certified Blockchain Developer - Ethereum blueprint spans 5 domains — including Development Tools & Frameworks, Ethereum Fundamentals, DApp Development. Tag key points per domain in the PDF version; the complete outline above lists every subtopic.
Yes:
After any course, consolidate the knowledge with the 102 practice questions for the Blockchain BTA Certified Blockchain Developer - Ethereum — every answer expert-verified.
Our system emails the Blockchain BTA Certified Blockchain Developer - Ethereum material automatically right after purchase — about a minute; click the link, sign in, and use the engine immediately, with 24/7 help if nothing arrives within 2 hours. If you unfortunately fail the corresponding CBDE exam within 60 days of purchase, you're welcome to a full refund: upload your failed result — a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam — and we handle it within 7 days. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products. We also recommend an alternative: exchange for two equal-value products free.
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Blockchain BTA Certified Blockchain Developer - Ethereum Sample Questions:
Hashing Mining uses:
- A. the Dagger-Hashimoto hashing while internally the EVM uses Keccack256 which is almost similar to SHA256, but has a different padding so produces different hashes.
- B. Keccack256 while internally to hash values it's easy to use the Dagger-Hashimoto to create a meaningful hash.
- C. the Dagger-Hashimoto hashing while internally the EVM uses SHA256 which is an alias for Keccack256.
Correct Answer: A 🗳️
When using assert to check invariants and it evaluates to false:
- A. all gas is consumed.
- B. all remaining gas is returned.
Correct Answer: A 🗳️
A version pragma is a great way to make it clear:
- A. for which blockchain a smart contract was developed for. It helps to avoid confusion with beta-customers.
- B. for which blockchain node a smart contract was developed for. It helps to avoid mixing up different versions of go-ethereum.
- C. for which compiler version a smart contract was developed for. It helps to avoid breaking changes.
Correct Answer: C 🗳️
Events:
- A. are stored on chain and are a great way to get a return value when a contract calls another contract.
- B. are used primarily for debugging exceptions in solidity.
- C. are stored in something like a side-chain and cannot be accessed by contracts.
Correct Answer: C 🗳️
When you do external calls to other smart contracts:
- A. you should follow the checks-effects-interactions pattern and avoid state changes after the call.
- B. you should follow the checks-effects-interactions pattern, which is only necessary when you do calls to contracts where a direct contract call is not possible.
- C. you should follow the effects-checks-interactions pattern and avoid state changes before the call.
Correct Answer: A 🗳️
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