What is “immutability” in blockchain?
a) Data can be easily modified
b) Data can be deleted if needed
c) Once data is recorded on the blockchain, it cannot be changed
d) Data can be changed only by miners
Answer:
c) Once data is recorded on the blockchain, it cannot be changed
Explanation:
Immutability means that once a block is added to the blockchain, its data cannot be altered, ensuring a permanent and secure record of transactions.