3 items

Security in Blockchain

This quiz covers various aspects of security in blockchain technology, including cryptography, smart contracts, and decentralized consensus. Test your knowledge and learn more about blockchain security!

Which type of attack involves an individual or a group controlling more than 50% of the network's mining power?

Sybil attack

Double spending attack

51% attack

What role do smart contracts play in blockchain security?

Securing private keys

Automating transactions

Enforcing legal contracts

What is the purpose of cryptographic hashing in blockchain?

Digital signatures

Data integrity verification

Data encryption