Which of the following is PRIMARILY used in blockchain technology to create a distributed immutable ledger?

The correct answer is B. Encryption. Encryption is the foundational mechanism behind blockchain's distributed immutable ledger - each block is cryptographically hashed and chained to the previous one, making any tampering immediately detectable across all nodes. Edge computing (A) is a network architecture concept…

Submitted by diego_uy· Apr 18, 2026Protection of Information Assets

Question

Options

AEdge computing
BEncryption
CApplication hardening
DArtificial intelligence (AI)

How the community answered

(32 responses)

A
3% (1)
B
94% (30)
D
3% (1)

Explanation

Encryption is the foundational mechanism behind blockchain's distributed immutable ledger - each block is cryptographically hashed and chained to the previous one, making any tampering immediately detectable across all nodes. Edge computing (A) is a network architecture concept about processing data closer to its source, unrelated to blockchain's integrity mechanism. Application hardening (C) refers to reducing an app's attack surface through patching and configuration, not data structure integrity. Artificial intelligence (D) involves machine learning and pattern recognition - powerful, but not the mechanism that links or secures blockchain records.

Memory tip: Think of blockchain as a chain of encrypted locks - each block's hash is the "key" that seals it to the next, making the ledger tamper-evident. If encryption breaks, the chain breaks.

Topics

#Blockchain technology#Cryptography#Information security controls#Distributed Ledger Technology

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