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Free CBDE Exam Braindumps (page: 6)

Page 5 of 26
PDF with 102 Questions

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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