Discuss EC-Council 312-82 Exam Topic 4 Question 2

Ethereum uses_____ as Proof of Work (PoW) whereas Bitcoin uses____based PoW.

APoB BoW

BSHAZ56 ETHASH

CPoW PoB

DETHASH SHA-256

Suggested Answer: D

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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31 comments · newest first

Dolores 11 months ago

I thought Bitcoin used something else, but I guess not!

Phuong 11 months ago

Yup, D is the right answer!

Gearldine 11 months ago

Wait, are we sure about that?

Micah 12 months ago

Totally agree, ETHASH is unique!

Dorothy 12 months ago

Ethereum uses ETHASH, Bitcoin uses SHA-256.

Octavio 1 year ago

I’m a bit confused. I thought both used PoW, but I can't remember the specifics. Is it really ETHASH and SHA-256?

Krystal 1 year ago

I practiced a similar question, and I think the answer is D. ETHASH for Ethereum and SHA-256 for Bitcoin.

Kristine 1 year ago

I remember studying that Ethereum uses a different PoW than Bitcoin, but I can't recall the exact names. I feel like ETHASH is right.

Laurel 1 year ago

I think Ethereum uses ETHASH, but I'm not completely sure about Bitcoin's algorithm. Was it SHA-256?

Rickie 1 year ago

I've got this! Ethereum uses ETHASH as its PoW algorithm, while Bitcoin uses the SHA-256 PoW algorithm. Easy peasy.

Arleen 1 year ago

Wait, what's the difference between PoW and PoB again? I need to review my notes on blockchain consensus mechanisms.

Ilene 1 year ago

Okay, let me break this down - Ethereum uses something called ETHASH, while Bitcoin uses SHA-256. I think I've got this.

Sarina 1 year ago

Hmm, I'm not sure about the difference between PoW and PoB. I'll need to think this through carefully.

Chantell 1 year ago

This question seems straightforward, I'm pretty confident I know the answer.

Domonique 2 years ago

I know Ethereum uses ETHASH, but I can never remember the Bitcoin one. Guess I'll just have to go with D and hope for the best. Maybe I should've paid more attention in crypto class.

Cordelia 2 years ago

↳ replying to Domonique

I remember now, thanks for the reminder. I'll go with D as well.

Nadine 2 years ago

↳ replying to Domonique

Yeah, that's correct. Ethereum uses ETHASH for PoW.

Graham 2 years ago

↳ replying to Domonique

I think Ethereum uses ETHASH and Bitcoin uses SHA-256.

Dana 2 years ago

Yes, that's correct. Bitcoin uses SHA-256 based PoW.

Mariann 2 years ago

I think Ethereum uses ETHASH as PoW.

Hollis 2 years ago

Haha, PoB BoW? What kind of made-up nonsense is that? I'm definitely going with D, the classic ETHASH and SHA-256 combo.

Peggie 2 years ago

I'm stuck between B and D, but I think D is the correct answer. SHAZ56 doesn't sound like a real thing, so I'm going to go with ETHASH and SHA-256.

Domitila 2 years ago

↳ replying to Peggie

Good choice on picking D as the answer!

Junita 2 years ago

↳ replying to Peggie

Bitcoin, on the other hand, uses SHA-256 based PoW.

Jesusa 2 years ago

↳ replying to Peggie

That's correct! Ethereum uses ETHASH as Proof of Work.

Yuette 2 years ago

↳ replying to Peggie

I think D is the correct answer. SHAZ56 doesn't sound like a real thing, so I'm going with ETHASH and SHA-256.

Lauran 2 years ago

Hmm, I think the answer is D. Ethereum uses ETHASH as its PoW, while Bitcoin uses SHA-256 based PoW. Pretty straightforward if you've been keeping up with the crypto news!

Stephania 2 years ago

↳ replying to Lauran

No problem, always happy to share crypto knowledge!

Leigha 2 years ago

↳ replying to Lauran

I didn't know that, thanks for the info!

Micaela 2 years ago

↳ replying to Lauran

Yes, that's correct. ETHASH for Ethereum and SHA-256 for Bitcoin.

Sina 2 years ago

↳ replying to Lauran

I agree, Ethereum uses ETHASH and Bitcoin uses SHA-256.

EC-Council 312-82 Exam - Topic 4 Question 2 Discussion