Blockchain Interview Questions and Answers
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.
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.
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.
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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