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Q.01 of 30

What is blockchain architecture and what are its core components?

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Blockchain architecture is a distributed ledger system consisting of several key components:

  • Blocks: Data containers holding transaction records, timestamps, and cryptographic hashes
  • Hash Functions: Create unique digital fingerprints for data integrity (commonly SHA-256)
  • Merkle Trees: Binary tree structures that efficiently summarize all transactions in a block
  • Digital Signatures: Cryptographic proofs of transaction authenticity
  • Consensus Mechanism: Protocol ensuring network agreement on valid transactions
  • Peer-to-Peer Network: Distributed nodes maintaining synchronized copies of the ledger
    The architecture ensures immutability, transparency, and decentralization without requiring a central authority.
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