CBSE Key Management and Wallet Security

Question 1

What is a Hardware Security Module (HSM) primarily used for in blockchain environments?

Accepted Answer

To securely generate, store, and manage cryptographic keys

Answer

To increase transaction throughput on the network

Answer

To provide network routing for blockchain nodes

Answer

To validate smart contract execution logic

Question 2

What is the primary purpose of a BIP-39 mnemonic seed phrase?

Accepted Answer

To provide a human-readable backup encoding for generating private keys

Answer

To encrypt individual blockchain transactions

Answer

To verify consensus between distributed nodes

Answer

To authenticate users on blockchain applications

Question 3

Which wallet type provides the strongest protection against remote network-based attacks?

Accepted Answer

Cold wallet stored on an air-gapped hardware device

Answer

Hot wallet connected to an exchange

Answer

Browser-based web wallet

Answer

Mobile wallet with biometric authentication

Question 4

What does a Hierarchical Deterministic (HD) wallet primarily enable?

Accepted Answer

Generation of an unlimited tree of key pairs from a single master seed

Answer

Multiple users sharing the same private key securely

Answer

Faster transaction validation through parallel processing

Answer

Automatic smart contract deployment and management

Question 5

What is the primary security risk of using a hot wallet for storing cryptocurrency assets?

Accepted Answer

Exposure of private keys to internet-connected systems vulnerable to remote attacks

Answer

Slow transaction processing speeds

Answer

Higher on-chain transaction fees

Answer

Incompatibility with standard blockchain protocols

Question 6

What is the primary security advantage of a multi-signature (multisig) wallet?

Accepted Answer

Elimination of single points of failure by requiring multiple key approvals

Answer

Faster transaction confirmation times

Answer

Lower gas fees for on-chain operations

Answer

Automatic cryptographic key rotation

Question 7

What does the BIP-44 derivation path m/44'/0'/0'/0/0 define in an HD wallet?

Accepted Answer

A specific child key derived following the BIP-44 hierarchical structure

Answer

A network routing address for peer discovery

Answer

A smart contract deployment address on Ethereum

Answer

An encryption key used to secure transaction data in transit