ACCA BT · Chapter 6 · Question 5 of 11
What is the main characteristic of blockchain technology?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) A distributed ledger in which records are shared across a network and are extremely difficult to alter once added
Explanation
Blockchain is a form of distributed ledger technology: copies of the ledger are held across many participants, new blocks are validated by consensus and cryptographically linked, making past records very hard to change. It does not rely on a single central authority, it is not anti-virus software, and it does not delete old transactions.
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