Quiz: Introduction to Blockchain and Cryptography

Question 1: What is the primary purpose of blockchain technology?

A. To centralize data storage B. To enhance traditional banking systems C. To provide a transparent and tamper-resistant alternative for data exchange and trust D. To replace the internet

Question 2: Which era of the internet is characterized by static, read-only content controlled by website owners?

A. Web1.0 B. Web2.0 C. Web3.0 D. Web4.0

Question 3: What was a significant challenge of centralized systems in Web2.0?

A. Enhanced user privacy B. Data centralization leading to potential misuse C. Decentralized content distribution D. Limited user interaction

Question 4: What is a key feature of the Tor Network?

A. Centralized data storage B. File-sharing protocol C. Music streaming service D. Private browsing and censorship-resistant communication

Question 5: How does blockchain build upon earlier peer-to-peer innovations?

A. By reducing security measures B. By centralizing control C. By integrating cryptographic security and financial incentives D. By eliminating consensus mechanisms

Question 6: What is the role of cryptography in blockchain technology?

A. To enhance user anonymity B. To secure transactions and ensure data integrity C. To increase transaction speed D. To centralize data control

Question 7: Which cryptographic method allows one party to prove to another that a statement is true without revealing any information beyond the validity of the statement?

A. Public-key cryptography B. Hash functions C. Digital signatures D. Zero-knowledge proofs

Question 8: What is a blockchain?

A. A distributed ledger with growing lists of records (blocks) that are securely linked together via cryptographic hashes B. A centralized database C. A peer-to-peer file-sharing network D. A type of cryptocurrency

Question 9: What ensures the immutability of data in a blockchain?

A. Cryptographic hashes linking each block to the previous one B. Centralized control C. Regular data backups D. Manual verification of transactions

Question 10: Which consensus mechanism involves nodes solving complex mathematical problems to validate transactions?

A. Proof of Stake B. Byzantine Fault Tolerance C. Proof of Work D. Delegated Proof of Stake

Question 11: What is the primary advantage of decentralized networks over centralized ones?

A. Faster data processing B. Simplified data management C. Reduced security measures D. Elimination of single points of failure

Question 12: In blockchain terminology, what is a 'node'?

A. A central server B. A participant in the network that stores and verifies blocks C. A type of cryptocurrency D. A cryptographic algorithm