Bitcoin mining is also known as proof-of-work because in order to create a valid block, the miner has to spent a significant amount of computational work to figure out a nonce. Therefore, that the hash of the nonce and the block to be proposed is adequately small. Which of the following is NOT a reason to include proof-of-work in the designs of permissionless blockchains? 1. To randomly select nodes in proportion to their computing power. 2. To make mining so costly that miners have incentives to not create invalid blocks. 3. To make it impossible for one miner to act like many different miners. 4. To allow nodes to compete for the right to create blocks

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A: Answer the above question are as follows

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A:

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A: Task :- Choose the correct option for given question.

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A:

Q: Shared session key establishment using a Key Distribution Center (KDC). Using the following table,…

A:

Q: Question 1. Understand the following problem scenarios and draw their structural diagrams.…

A: Answer : The required solution for the above given question is mention as below,

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A: Answer: I have given answered in the handwritten format in brief explanation.

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A: The answer for the given question is below:

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A: The big benefit of a digital signature is that is makes it difficult for the sender of a message to…