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DataStructures / Blockchain interview questions

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What is Blockchain technology?

Blockchain is a decentralized, distributed, and incorruptible digital ledger that can store and record economic transactions and other valuable details. Although it was initially designed as a technology for the cryptocurrency Bitcoin, today it is used by companies across different industries.

What are blocks in Blockchain?

A Blockchain comprises many blocks holding financial transaction information. Each block has a timestamp, the transaction data, and a unique hash pointer that acts as a link between it and the block immediately before it. Together, all blocks combine to form a Blockchain.

Different types of Blockchains.

There are 3 types,

  • private,
  • public,
  • and consortium.

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