Blockchain — Questions and answers
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Who published the whitepaper "Bitcoin: A Peer-to-Peer Electronic Cash System" in 2008?
Choices
- A. Wei Dai
- B. A mysterious entity known as Satoshi Nakamoto ✓
- C. An early computer scientist
- D. A digital security expert
Answer: B. A mysterious entity known as Satoshi Nakamoto
From page 4
What do "miners" do in Bitcoin's "Proof-of-Work" system to add new blocks?
Choices
- A. They dig for valuable digital coins.
- B. They compete to solve a difficult computer puzzle. ✓
- C. They draw pictures of the new blocks.
- D. They vote on which block should be added next.
Answer: B. They compete to solve a difficult computer puzzle.
From page 6
How did Ethereum make blockchain technology different from just being a currency like Bitcoin?
Choices
- A. Ethereum made it much harder to use.
- B. Ethereum let people build all sorts of different apps on its platform. ✓
- C. Ethereum only allowed payments in gold.
- D. Ethereum was only for playing games.
Answer: B. Ethereum let people build all sorts of different apps on its platform.
From page 8