Block Chain Exam

1. What are the three types of Databases?

2. Centralized Databases are the most secure.

3. All blocks have a cryptographic hash of the previous block.

4. Blockchain requires a third-party verification to complete all transactions.

5. What year was blockchain technology initially proposed?

6. Stuart Haber and W. Scott Stornetta created Bitcoin.

7. Blockchain is solely used for Crypto and has no other possible applications.

8. The process of dispersing functions and power away from a central location or authority.

9. What was Blockchain first real-world application?

10. Blockchain Hash codes are in numerical order.

11. A _________ is a clear and structured collection of data that is often stored and accessed electronically through a computer system.

12. Blockchain is considered to be a database.

13. Researchers who created the blockchain aimed to develop a system where document timestamps could be manipulated.

14. Blockchain data is accessible for anyone to verify or look into.

15. Centralized databases are simple to set up and can be developed in a timely fashion.

16. Distributed databases are the natural choice for many businesses.

17. What cryptocurrency exchange enables for safe online peer-to-peer cryptocurrency transactions without the use of a middleman?_________

18. New blocks are always kept in a pyramid fashion and chronological order.

19. A _______ is a cryptographic algorithm that converts any data input into a fixed string of values.

20. A network of thousands of computers approves all transactions on the blockchain.

21. Which Company was mentioned for utilizing Blockchain?

22. Blockchain eliminates human involvement in the verification process, leading in lower human error and a more accurate record of data.

23. Blockchain has a Historical association for being utilized in Illegal & scandalous activity.

24. Which one of these is not a prospective Blockchain application?

25. Brands can monitor a product’s journey from its inception through each trip it takes, and ultimately to its delivery, thanks to blockchain.

26. Bitcoin is a type of Blockchain.

27. The blockchain received backlash for its high costs associated with cryptocurrency mining.

28. Smart Property is a similar idea that involves utilizing _____________ to govern the ownership of a property or asset on the blockchain. The property can be tangible, such as a vehicle, house, smartphone, or intangible, such as stock in a firm.

29. Which one of these is not a Blockchain Advantage.

30. Using blockchain for voting could lead to an excess of tampered votes.