Blockchain and Cryptography Quiz

What is a key feature of blockchain technology?

• Immutability

• High latency

• Limited transparency

• Centralized control

What does DLT stand for?

• Digital Ledger Transaction

• Distributed Ledger Technology

• Data Logging Technology

• Decentralized Ledger Tool

Which consensus mechanism is used in Bitcoin?

• Proof of Stake

• Proof of Work

• Delegated Proof of Stake

• Byzantine Fault Tolerance

What is a characteristic of symmetric encryption?

• Is less secure than asymmetric encryption

• Is slower than asymmetric encryption

• Uses the same key for encryption and decryption

• Uses two different keys

Which of the following is NOT a benefit of blockchain technology?

• Security

• High energy consumption

• Transparency

• Decentralization

What is the main purpose of a smart contract?

• To store data securely

• To automate transactions

• To manage user permissions

• To verify identities

What does the term 'immutable' refer to in blockchain?

• Data is stored in a central location

• Data cannot be altered once recorded

• Data can be easily changed

• Data is only accessible by administrators

Which of the following is a challenge faced by blockchain technology?

• High transaction speed

• Scalability issues

• Low energy consumption

• Complete regulatory compliance

What is the main function of cryptographic hashing?

• To store data securely

• To compress data

• To create a unique identifier for data

• To encrypt data

Which algorithm is commonly used for public-key encryption?

• Blowfish

• DES

• RSA

• AES