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Eccouncil 312-82 Exam - Topic 4 Question 2 Discussion
Topic #: 4
Ethereum uses_____ as Proof of Work (PoW) whereas Bitcoin uses____based PoW.
Ethereum uses Ethash as its Proof of Work (PoW) algorithm, while Bitcoin uses SHA-256 for its PoW algorithm. Both are used to secure their respective networks, but they differ in terms of computational complexity and memory requirements.
Key Details:
Ethash (Ethereum): Ethash is a memory-hard hashing algorithm designed to be resistant to ASIC mining, favoring GPU miners instead. It requires substantial memory, which helps to ensure a higher degree of decentralization.
SHA-256 (Bitcoin): Bitcoin's SHA-256 is a highly secure hashing algorithm that supports ASIC mining. It is computationally intensive but less memory-demanding compared to Ethash.
Purpose in PoW: Both algorithms enable miners to validate transactions and secure the network by solving complex puzzles. Ethash's design helps Ethereum maintain a decentralized network, whereas SHA-256 allows Bitcoin to achieve high levels of security with specialized mining equipment.
Therefore, D. ETHASH SHA-256 is the correct answer, as these are the specific PoW algorithms used by Ethereum and Bitcoin, respectively.
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