Blockchain BTA Certified Developer - Ethereum CBDE Dumps in PDF

Free Blockchain CBDE Real Questions (page: 13)

Smart Contracts:

  1. are always living on the same address, because the blockchain is deterministic. So, one account can always have one smart contract.
  2. are having the same address as the EOA.
  3. 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.
  4. the address of the smart contract is a random address which gets generated by the miner who mines the contract-creation transaction.

Answer(s): C



Transactions containing the same data to create the same smart contract are:

  1. always having the same signature.
  2. having a different signature because of the nonce which changes upon every transaction.

Answer(s): B



Sending one Ether is actually internally translated:

  1. to Wei, so it will send the equivalent of 10^18 Wei.
  2. to Finney, so it will send the equivalent of 10^3 Finney.
  3. to Szabo, so it will send the equivalent of 10^6 Szabo.

Answer(s): A



Hashing Mining uses:

  1. Keccack256 while internally to hash values it's easy to use the Dagger-Hashimoto to create a meaningful hash.
  2. the Dagger-Hashimoto hashing while internally the EVM uses SHA256 which is an alias for Keccack256.
  3. 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.

Answer(s): C



PoS:

  1. would be better, because it can reduce the amount of energy needed for mining.
  2. would be worse, because it would increase the amount of energy needed for mining.

Answer(s): A



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

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

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

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

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

question 128 the answer should be static not auto

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

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Nabla
9/17/2023 10:20:00 AM

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7/20/2023 5:00:00 AM

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Nick W
9/29/2023 7:32:00 AM

q10: c and f are also true. q11: this is outdated. you no longer need ownership on a pipe to operate it

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