BTA Certified Blockchain Developer - Ethereum: CBDE Exam
"BTA Certified Blockchain Developer - Ethereum", also known as CBDE exam, is a Blockchain Certification. With the complete collection of questions and answers, PrepAwayPDF has assembled to take you through 102 Q&As to your CBDE Exam preparation. In the CBDE exam resources, you will cover every field and category in Blockchain Developer - Ethereum Certification helping to ready you for your successful Blockchain Certification.
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Blockchain CBDE Exam Overview:
| Certification Vendor: | Blockchain Training Alliance (BTA) |
|---|---|
| Exam Name: | Certified Blockchain Developer - Ethereum |
| Exam Number: | CBDE |
| Certificate Validity Period: | 1 year from purchase |
| Passing Score: | 70% |
| Related Certifications: | Other BTA Blockchain Developer Certifications Certified Blockchain Developer - Hyperledger Fabric (CBDH) Certified Blockchain Solution Architect (CBSA) |
| Exam Format: | Multiple choice |
| Real Exam Qty: | 70 |
| Available Languages: | English |
| Exam Price: | USD 275 |
| Exam Duration: | 90 minutes |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Online proctored exam launched via the BTA student portal. |
| Pre Condition: | No formal prerequisites; recommended experience with programming and basic blockchain concepts. |
| Official Syllabus URL: | https://blockchaintrainingalliance.com/products/cbde |
Blockchain CBDE Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Web3 and dApp Integration | - Decentralized application architecture - Web3.js integration |
| Topic 2: Ethereum Fundamentals and Architecture | - Ethereum Virtual Machine (EVM) - Ethereum blockchain basics - Gas and transaction fee mechanics |
| Topic 3: Smart Contract Security | - Secure coding best practices - Common vulnerabilities |
| Topic 4: Development Tools and Testing | - Use of development tools (e.g., Remix, Truffle) - Unit testing and deployment strategies |
| Topic 5: Solidity Programming | - Solidity language fundamentals - Smart contract development - Error handling and events |
CBDE Exam Preparation FAQ
The official Blockchain BTA Certified Blockchain Developer - Ethereum outline splits the exam into 5 domains, led by Solidity Programming, Smart Contract Security, and Development Tools and Testing. The complete breakdown is in the topics section above; PrepAwayPDF's 102 practice questions cover every domain listed.
A complete preparation package: 102 practice questions for the Blockchain BTA Certified Blockchain Developer - Ethereum exam in three formats — a printable, expert-prepared PDF with instant download; 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. Also included: a free demo, 365 days of free updates, a 50% renewal discount afterward, unlimited computer installations, 24-hour online customer service, and remote assistance from professional personnel when needed.
The Blockchain BTA Certified Blockchain Developer - Ethereum exam includes 70 to answer within 90 minutes. Rehearsing that pace in the PrepAwayPDF Desktop Test Engine turns time pressure into a familiar routine.
No formal prerequisites; recommended experience with programming and basic blockchain concepts. Rules are updated occasionally, so confirm the current requirements on the official Blockchain exam page before you book.
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The CBDE exam is a Blockchain certification exam validating the knowledge in the Blockchain BTA Certified Blockchain Developer - Ethereum syllabus shown above. It contributes to these credential paths: Certified Blockchain Developer - Hyperledger Fabric (CBDH), Certified Blockchain Solution Architect (CBSA), Other BTA Blockchain Developer Certifications. Candidates take it to prove their skills to employers in 2026's market, and PrepAwayPDF prepares them with 102 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.
Blockchain recommends these training resources for the Blockchain BTA Certified Blockchain Developer - Ethereum exam:
Combine the official training with the 102 practice questions from PrepAwayPDF — that pairing reveals what you have truly absorbed.
Online proctored exam launched via the BTA student portal. Register for the Blockchain BTA Certified Blockchain Developer - Ethereum exam through these official channels:
After booking, your PrepAwayPDF practice questions arrive by email within 1 minute — preparation can begin immediately.
The Blockchain BTA Certified Blockchain Developer - Ethereum exam requires 70% to pass, and registration costs USD 275. Retakes cost the same again, so a readiness check with the PrepAwayPDF practice engines is a worthwhile step before booking.
Blockchain BTA Certified Blockchain Developer - Ethereum Sample Questions:
Public Keys vs. Private Keys. Which statement is true?
- A. The Private Key is to generate a Public Key. The Public Key can sign transactions, the address is here to verify the transactions.
- B. The Private Key signs transactions, the Public Key can verify the signature.
- C. The Public Key is for Signing Transactions, the Private Key must be given out to verify the signature.
Correct Answer: B 🗳️
Solidity files:
- A. can't be split across multiple files, everything should be in one single file.
- B. can be spread across multiple files. To import all contract from a file you can use "import 'myfile.sol'. To import Contract MyContract from myfile.sol you use "import {MyContract as SomeContract} from 'myfile.sol';".
- C. can be split across multiple files, but every contract must be in a file with the same name as the contract itself.
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. it's good to inform users about the updates via a newsletter.
- C. Ethereum doesn't upgrade the platform. It's fixed and final.
Correct Answer: A 🗳️
To send ether to a contract without a function call:
- A. you cannot send ether to a contract without explicitly calling a function. The fallback function can never receive ether.
- B. either a fallback function which is payable exists, or no fallback function at all exists.
- C. a fallback function must be declared and it must be made payable. If there is no fallback function or the fallback function is not payable it will throw an exception.
Correct Answer: C 🗳️
The Fallback function:
- A. cannot receive Ether, not even by adding the payable modifier.
- B. can contain as much logic as you want, but it's better to keep it short and not exceed the gas stipend of 2300 gas.
- C. can be used to avoid receiving ether.
Correct Answer: B 🗳️
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