Blockchain

What is the Byzantine Generals Problem?

• A problem in distributed systems where participants must agree on a single decision despite faulty or malicious actors.

• A problem in cryptography related to key distribution.

• A problem in blockchain scalability.

• A problem in network latency.

What is the main goal of solving the Byzantine Generals Problem?

• To ensure all participants agree on a single decision.

• To increase transaction speed in blockchain networks.

• To reduce energy consumption in mining.

• To improve wallet security.

Which of the following is a solution to the Byzantine Generals Problem?

• Proof-of-Work (PoW).

• Proof-of-Stake (PoS).

• Both A and B.

• None of the above.

What is the primary purpose of Bitcoin mining?

• To create new Bitcoin.

• To validate transactions and add them to the blockchain.

• To increase the price of Bitcoin.

• To store private keys.

What is the maximum supply of Bitcoin?

• 10 million.

• 21 million.

• 50 million.

• Unlimited.

What is a Bitcoin wallet?

• A physical device to store Bitcoin.

• A software or hardware tool to store private and public keys.

• A place to mine Bitcoin.

• A type of blockchain.

What is Proof-of-Work (PoW)?

• A consensus mechanism where miners solve cryptographic puzzles to validate transactions.

• A consensus mechanism where validators are chosen based on the amount of cryptocurrency they hold.

• A method to increase transaction speed.

• A way to store private keys securely.

What is Proof-of-Stake (PoS)?

• A consensus mechanism where validators are chosen based on the amount of cryptocurrency they hold.

• A consensus mechanism where miners solve cryptographic puzzles.

• A method to increase energy efficiency in mining.

• A way to store private keys securely.

Which of the following is a disadvantage of Proof-of-Work (PoW)?

• High energy consumption.

• Low security.

• Centralization of power.

• Limited scalability.

Which of the following is a use case for blockchain technology?

• Supply chain management.

• Digital identity verification.

• Decentralized finance (DeFi).

• All of the above.