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Blockchain works on the concept of a database that is shared and:

ADecorated
BDeclassified
CDecentralised
DDecelerated
Answer & Solution
Correct answer: C. Decentralised
1. Traditional digital transactions use one central database. 2. Blockchain deliberately does the opposite. 3. Blockchain works on the concept of a decentralised and shared database. 4. Each computer holds a copy of it. _Source: syllabus Computer Science, Ch 3 'Emerging Trends'_
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