What is proof of work as it relates to blockchain?

IT Questions BankCategory: IoT SecurityWhat is proof of work as it relates to blockchain?

What is proof of work as it relates to blockchain?

  • It is the security certificate issued.
  • It is a list of all the devices or people that have touched the transaction.
  • It is a process that includes a risk factor value that can change as the transaction moves through the process.
  • It is an algorithm used for transaction validation.

Explanation: Proof of work (PoW) uses an algorithm (hash) or a block added to the blockchain to validate transactions. Each block is a list of transactions with a hash of the previous block (prior PoW) and a hash of the current block.

Exam with this question: IoT Security 1.1 Chapter 6 Quiz Answers

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