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Which of the following statements about the Bitcoin incentive mechanisms is INCORRECT: A. We can always penalize the node that created the block with invalid (e.g., double-spend) transactions.  B. There are two separate incentive mechanisms in Bitcoin: block reward and transaction fees. C. The value of block reward halves every 210,000 blocks. D. Transaction fees are currently voluntary, but they may be mandatory in the future when the block reward starts to run out.

Which of the following statements about the Bitcoin incentive mechanisms is INCORRECT: A. We can always penalize the node that created the block with invalid (e.g., double-spend) transactions.  B. There are two separate incentive mechanisms in Bitcoin: block reward and transaction fees. C. The value of block reward halves every 210,000 blocks. D. Transaction fees are currently voluntary, but they may be mandatory in the future when the block reward starts to run out.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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1. Which of the following statements about the Bitcoin incentive mechanisms is INCORRECT:

A. We can always penalize the node that created the block with invalid (e.g., double-spend) transactions. 

B. There are two separate incentive mechanisms in Bitcoin: block reward and transaction fees.

C. The value of block reward halves every 210,000 blocks.

D. Transaction fees are currently voluntary, but they may be mandatory in the future when the block reward starts to run out. 

 

Expert Solution
Answer: D

Transaction fees are currently voluntary, but they may be mandatory in the future when the block reward starts to run out.

this statement is incorrect.

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