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Blockchain preguntas y respuestas de entrevista

Pregunta 26. Explain the concept of zero-knowledge proofs in blockchain.

Zero-knowledge proofs allow one party to prove the authenticity of information to another party without revealing any details about the information itself. This enhances privacy and security in blockchain transactions.

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Pregunta 27. What is the role of a block reward in a Proof of Work blockchain?

A block reward is an incentive provided to miners for successfully adding a new block to the blockchain. It typically consists of newly created cryptocurrency coins and transaction fees from the included transactions.

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Pregunta 28. Explain the concept of token standards in blockchain, with a specific example.

Token standards define a set of rules and functionalities for creating and interacting with tokens on a blockchain. An example is the ERC-20 standard on the Ethereum blockchain, which specifies the requirements for fungible tokens.

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Pregunta 29. What is the difference between a soft fork and a hard fork in blockchain?

A soft fork is a backward-compatible upgrade to the blockchain protocol, while a hard fork is a non-compatible and more significant change. Soft forks do not require all nodes to upgrade, whereas hard forks do.

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