BTA Certified Blockchain Developer – Ethereum CBDE Practice Questions

1. Consensus is reached:

2. Smart Contracts can be written in:

3. Solidity gets compiled:

4. Having a bug-bounty program early on:

5. Which is the right order for Denominations?

6. The nonce-field in a transaction is used:

7. Which statement is true about the EVM?

8. DApps are:

9. To get most out of the blockchain, it is best:

10. A Hashing Algorithm is deterministic.

What does it mean?

11. What’s the correct scientific notation?

12. What are Private Keys used for?

13. Public Keys vs. Private Keys.

Which statement is true?

14. Proof of Work (PoW) vs. Proof of Stake.

15. Externally Owned Accounts:

16. Smart Contracts:

17. Transactions containing the same data to create the same smart contract are:

18. Sending one Ether is actually internally translated:

19. Hashing Mining uses:

20. PoS:

21. Externally Owned Accounts (EoA):

22. What are Ethereum Nodes?

23. To communicate with an Ethereum node via JavaScript:

24. It’s possible to access the blockchain via an Ethereum Node:

25. A Private Network is:

26. For Rapid Development Cycles it’s good:

27. Go-Ethereum vs. Ganache:

28. Block Timestamp:

29. Block Difficulty:

30. Ethereum Nodes:

31. When a new block is mined:

32. A Blockchain Node:

33. On a consortium network:

34. The JSON-RPC Protocol:

35. GETH:

36. To store almost all data in the Ethereum Blockchain:

37. You interact with a smart contract and see a gas usage of 50,000 gas with a gas cost of 15Gwei.

How much Ether would you have to pay to the miner?

38. Checking the balance of an address inside a loop of a smart contract constantly:

39. Gas costs accrue on sending a transaction:

40. EVM assembly: