Which type of blockchain is most vulnerable to traditional Denial of Service attacks?

• A.Proof of Space
• B.Proof of Activity
• C.All of the above
• D.Proof of Stake
• E.Proof of Work

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What is the easiest way to steal cryptocurrency from a user?

• A.Eclipse attack
• B.None of the above
• C.Private key theft
• D.Double-spend attack

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