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Blockchain Security: Consensus Mechanisms and Protocols

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Multiple Choice

Which consensus mechanism is known for its energy efficiency and fast transaction processing?

  1. Proof-of-Work (PoW)
  2. Proof-of-Stake (PoS)
  3. Delegated Proof-of-Stake (DPoS)
  4. Practical Byzantine Fault Tolerance (PBFT)
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