CBSA

CBSA practice questions, page 5 of 9, with answer review and explanations.

Question 21

The gas price is a value set by the creator of the blockchain transaction? (Select best answer.)

  1. FALSE
  2. Its Negotiable
  3. TRUE

Question 22

R3 Corda does not organize time into blocks. What does Corda actually perform and use?

  1. Ripple is implemented as the blockchain and XRP for cryptocurrency.
  2. Notary services and timesmapping
  3. R3 Corda is a blockchain and does use blocks
  4. Notary services and timestamping

Question 23

Contracts live on the blockchain in an Ethereum-specific binary format called _____________?

  1. EOS
  2. EVM Code
  3. Ether
  4. Gas
  5. EVM Bytecode

Question 24

Bitcoin uses what proof of work consensus system?

  1. Cubehash512
  2. Scrypt-Jane
  3. Whirlpool
  4. Scrypt-n
  5. Hashcash

Question 25

An _____________ is a well-known service that signs transactions if they state a fact and that fact is considered to be true. They may optionally also provide the facts.

  1. notary
  2. oracle
  3. node
  4. endpoint