Suppose miner Alice closely adheres to the "longest-chain rule". While building block 12 she receives a message about another block 12. What should Alice do? A. Ignore the just-received block 12 and keep building her block 12. B. Stop immediately and start building block 13 appending to the just-received block 12. C. Verify the just-received block 12 is correct; if so immediately stop building her block 12 and start building block 13 appending to the just-received block 12. D. Wait until block 13 appending the just-received block 12 (if she still not done with her block 12) is received to abandon her block 12 and keep building block 14 appending it.
Suppose miner Alice closely adheres to the "longest-chain rule". While building block 12 she receives a message about another block 12. What should Alice do? A. Ignore the just-received block 12 and keep building her block 12. B. Stop immediately and start building block 13 appending to the just-received block 12. C. Verify the just-received block 12 is correct; if so immediately stop building her block 12 and start building block 13 appending to the just-received block 12. D. Wait until block 13 appending the just-received block 12 (if she still not done with her block 12) is received to abandon her block 12 and keep building block 14 appending it.
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
Problem 1PE
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Suppose miner Alice closely adheres to the "longest-chain rule". While building block 12 she receives a message about another block 12. What should Alice do?
A. Ignore the just-received block 12 and keep building her block 12.
B. Stop immediately and start building block 13 appending to the just-received block 12.
C. Verify the just-received block 12 is correct; if so immediately stop building her block 12 and start building block 13 appending to the just-received block 12.
D. Wait until block 13 appending the just-received block 12 (if she still not done with her block 12) is received to abandon her block 12 and keep building block 14 appending it.
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