What is a Blockchain?
A. All of the above
B. A digital currency
C. An unchangeable record
D. A database of usable secret data
E. A Smart Contract
正解:C
質問 2:
How does a private Blockchain differ from a public one? Select all that apply.
A. A private Blockchain is not distributed
B. A private Blockchain does not use proof of work consensus
C. A private Blockchain often requires the identity of users to be known
D. A private Blockchain is more efficient and has faster transaction times
正解:C
質問 3:
How do consensus algorithms like Proof of Work or Proof of Stake incentivize miners to participate?
A. By not charging users monthly subscription costs
B. By paying miners with U.S. dollars
C. By placing their name on the Blockchain
D. By paying the miners with cryptocurrency
正解:D
質問 4:
Which of the following problems did Blockchain solve for cryptocurrencies?
A. Double Spending
B. Anonymity
C. Destination of currencies
D. None of the above
正解:B
質問 5:
The height of a block is the______________ in the chain between it and the genesis block.
A. Merkle tree hash
B. size of the memory cache
C. metadata that is
D. number of blocks
正解:D
質問 6:
The Blockchain combined with the Internet of Things (IoT) will dramatically ____________.
A. speed up the internet
B. increase device connectivity
C. increase the use of cryptocurrency
D. make Bitcoin less expensive
正解:B
質問 7:
A distributed network is always decentralized.
A. False
B. True
正解:A
質問 8:
Blockchains work best when they are____________________.
A. used for financial applications
B. used as an alternative to a database
C. used alone
D. combined with other technologies
正解:A
平山** -
ほとんどの出題範囲をカバーしている。Pass4Testさん、誠にありがとうございました!