CAF-3 · Chapter 12 · Question 2 of 15
In a blockchain network, what happens if a hacker attempts to alter a transaction within a specific block?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) The hash of that block changes, which breaks the link to the next block and invalidates the subsequent chain.
Explanation
If someone alters a transaction, the hash of that block changes. Because each block relies on the previous block’s hash, this disruption breaks the link and invalidates the entire subsequent chain
More Fintech & Blockchain Applications MCQs
- Q4What is the specific purpose of "hashing" in a blockchain environment?
- Q5Which of the following is a classic example of a completely open, decentralized Public Blockchain?
- Q6An enterprise wants to keep its sensitive internal data private while simultaneously sharing key, non-sensitive information on a public…
- Q7Which Distributed Ledger Technology (DLT) provides decentralized computing without needing global consensus, instead allowing each…
- Q8In a Proof of Stake (PoS) consensus mechanism, how are validators selected to maintain the integrity of the network?