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Exam (elaborations)

Prepare Blockchain CBDE Exam To Get Certification
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The Certified Blockchain Developer - Ethereum (CBDE) exam validates your skills in developing and implementing blockchain solutions on the Ethereum platform. To succeed, focus on understanding Ethereum architecture, smart contract development, and blockchain security best practices. Hands-on experi...

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  • September 5, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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Questions & Answers PDF Page 1




Blockchain
CBDE Exam
BTA Certified Blockchain Developer - Ethereum




Thank you for downloading CBDE exam PDF Demo

You can also try our CBDE practice exam software


Download Free Demo:

https://www.certshero.com/CBDE.html




https://www.certshero.com

, Questions & Answers PDF Page 2




Version: 7.0
Question: 1

Consensus is reached:

A. by the miner nodes which make sure that a transaction is valid.
B. by every single node in the blockchain network executing the same transaction.
C. by a cryptographic secure signature algorithm called ECDSA which makes sure that cheating is
impossible.

Answer: B

Question: 2

Smart Contracts can be written in:

A. Java, C++, Solidity and JavaScript, because the Ethereum Blockchain is completely language
agnostic and cross compilers exist for every major language.
B. Solidity, Viper, LLL and Serpent, because those are high level languages that are compiled down to
bytecode.
C. Solidity and JavaScript, because those are the official first implementations for Distributed
applications and the Blockchain supports those languages fully.

Answer: B

Question: 3

Solidity gets compiled:

A. to bytecode that can't be understood by humans.
B. to bytecodes which are essentially opcodes running instruction by instruction.

Answer: B

Question: 4

Having a bug-bounty program early on:

A. can help to engage the community in testing your smart contracts and therefore help to find bugs
early.
B. might be a burden as it is an administrative overhead mainly.
C. is completely useless. Who wants to test beta-ware software? It’s better to start with the bug-




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