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Home / Interview Subjects / Blockchain
WithoutBook LIVE Mock Interviews Blockchain Related interview subjects: 74

Interview Questions and Answers

Know the top Blockchain interview questions and answers for freshers and experienced candidates to prepare for job interviews.

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The Best LIVE Mock Interview - You should go through before interview

Know the top Blockchain interview questions and answers for freshers and experienced candidates to prepare for job interviews.

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Freshers / Beginner level questions & answers

Ques 1

Explain the role of a wallet in blockchain.

A wallet in blockchain is a digital tool that allows users to store and manage their cryptographic keys, which are essential for accessing and managing their cryptocurrency holdings and conducting transactions.
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Ques 2

What is the purpose of a consensus algorithm in a blockchain network?

A consensus algorithm is used to achieve agreement among nodes in a blockchain network on the validity of transactions. It ensures that all participants have a consistent view of the distributed ledger.
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Ques 3

Explain the role of a node in a blockchain network.

A node is a computer or device that participates in a blockchain network. Nodes maintain a copy of the blockchain, validate transactions, and contribute to the consensus process by reaching agreement on the state of the ledger.
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Ques 4

What is the purpose of a private key in cryptocurrency?

A private key is a cryptographic key that provides access to a user's cryptocurrency holdings. It must be kept secure, as it is used to sign transactions and prove ownership of digital assets on the blockchain.
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