Database System Concepts
Database System Concepts
7th Edition
ISBN: 9781260084504
Author: Abraham Silberschatz, S. Sudarshan, Abraham, Henry Korth, Silberschatz Abraham, Silberschatz Professor
Publisher: McGraw-Hill Education
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Chapter 26, Problem 1PE

Explanation of Solution

Blockchain fork:

  • It generally occurs when a block is being added to the block other than the most recent one in the chain is called as blockchain fork.
  • The blockchain is forked in order to change the aspect of protocol or its data structure.
  • Forking will occur when a malicious activity occurs.

Explanation of Solution

Two types of block chain fork:

There are two types of block chain fork and they are:

  • Soft fork
  • Hard fork

Difference between them:

Soft fork occurs at the rare case and will cause major controversy but does not invalidate prior block but whereas the hard fork will do it that is in a hard fork an older version of the block chain software will remain in use and it will lead to separate block chains that holds different contents in them.

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