Blockchain CBDE Exam (page: 1)
Blockchain BTA Certified Developer - Ethereum
Updated on: 11-Nov-2025

Viewing Page 1 of 22

Consensus is reached:

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

Answer(s): B



Smart Contracts can be written in:

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

Answer(s): B



Solidity gets compiled:

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

Answer(s): B



Having a bug-bounty program early on:

  1. can help to engage the community in testing your smart contracts and therefore help to find bugs early.
  2. might be a burden as it is an administrative overhead mainly.
  3. is completely useless. Who wants to test beta-ware software? It’s better to start with the bug-bounty program after the contract is released on the main-net.

Answer(s): A



Which is the right order for Denominations?

  1. Wei, Finney, Szabo, Ether, Tether.
  2. Finney, Szabo, Mether, Gwei.
  3. Gwei, Szabo, Finney, Ether.

Answer(s): C



Viewing Page 1 of 22



Share your comments for Blockchain CBDE exam with other users:

Anuj 1/14/2024 4:07:00 PM

very good question
Anonymous


Saravana Kumar TS 12/8/2023 9:49:00 AM

question: 93 which statement is true regarding the result? sales contain 6 columns and values contain 7 columns so c is not right answer.
INDIA


Lue 3/30/2023 11:43:00 PM

highly recommend just passed my exam.
CANADA


DC 1/7/2024 10:17:00 AM

great practice! thanks
UNITED STATES


Anonymus 11/9/2023 5:41:00 AM

anyone who wrote this exam recently?
SOUTH AFRICA


Khalid Javid 11/17/2023 3:46:00 PM

kindly share the dump
Anonymous


Na 8/9/2023 8:39:00 AM

could you please upload cfe fraud prevention and deterrence questions? it will be very much helpful.
Anonymous


shime 10/23/2023 10:03:00 AM

this is really very very helpful for mcd level 1
ETHIOPIA


Vnu 6/3/2023 2:39:00 AM

very helpful!
Anonymous


Steve 8/17/2023 2:19:00 PM

question #18s answer should be a, not d. this should be corrected. it should be minvalidityperiod
CANADA


RITEISH 12/24/2023 4:33:00 AM

thanks for the exact solution
Anonymous


SB 10/15/2023 7:58:00 AM

need to refer the questions and have to give the exam
INDIA


Mike Derfalem 7/16/2023 7:59:00 PM

i need it right now if it was possible please
Anonymous


Isak 7/6/2023 3:21:00 AM

i need it very much please share it in the fastest time.
Anonymous


Maria 6/23/2023 11:40:00 AM

correct answer is d for student.java program
IRELAND


Nagendra Pedipina 7/12/2023 9:10:00 AM

q:37 c is correct
INDIA


John 9/16/2023 9:37:00 PM

q6 exam topic: terramearth, c: correct answer: copy 1petabyte to encrypted usb device ???
GERMANY


SAM 12/4/2023 12:56:00 AM

explained answers
INDIA


Andy 12/26/2023 9:35:00 PM

plan to take theaws certified developer - associate dva-c02 in the next few weeks
SINGAPORE


siva 5/17/2023 12:32:00 AM

very helpfull
Anonymous


mouna 9/27/2023 8:53:00 AM

good questions
Anonymous


Bhavya 9/12/2023 7:18:00 AM

help to practice csa exam
Anonymous


Malik 9/28/2023 1:09:00 PM

nice tip and well documented
Anonymous


rodrigo 6/22/2023 7:55:00 AM

i need the exam
Anonymous


Dan 6/29/2023 1:53:00 PM

please upload
Anonymous


Ale M 11/22/2023 6:38:00 PM

prepping for fsc exam
AUSTRALIA


ahmad hassan 9/6/2023 3:26:00 AM

pd1 with great experience
Anonymous


Žarko 9/5/2023 3:35:00 AM

@t it seems like azure service bus message quesues could be the best solution
UNITED KINGDOM


Shiji 10/15/2023 1:08:00 PM

helpful to check your understanding.
INDIA


Da Costa 8/27/2023 11:43:00 AM

question 128 the answer should be static not auto
Anonymous


bot 7/26/2023 6:45:00 PM

more comments here
UNITED STATES


Kaleemullah 12/31/2023 1:35:00 AM

great support to appear for exams
Anonymous


Bsmaind 8/20/2023 9:26:00 AM

useful dumps
Anonymous


Blessious Phiri 8/13/2023 8:37:00 AM

making progress
Anonymous