7. Question 7 What do nodes/miners actually do on the blockchain? Please select all that apply? 1 / 1 point Running the blockchain-specific scripting language to execute some form of data…
6. Question 6 What is the key relationship between public and private keys used in blockchains? 1 / 1 point Taken together, public-private key pairs serve as the one and only…
5. Question 5 Which of the following are NOT a required component in a blockchain system? Please select all that apply 1 / 1 point Complete decentralization—data should be stored on…
4. Question 4 Which of the following statements is NOT correct about a 51% attack? 1 / 1 point The 51% attack can be achieved more easily under the random consensus…
3. Question 3 Why is hashing needed for public blockchains such as bitcoin? 1 / 1 point It is energy-intensive to compute and therefore deters hacking attempts It’s collision proof…
2. Question 2 Please go to this SHA-256 online hashing tool and hash this message: “Fintech Innovations” (without the quotes) and do the same for this message: “FinTech Innovations”. Based…
9. Question 9 From our discussion on the blockchain data structure, we know that the blockchain data is mostly immutable. What if a piece of fraudulent data is uploaded to…
8. Question 8 What does “consensus” achieve in a blockchain? 1 / 1 point An increased level of operational security and hacking resistance A unified set of record shared by…
4. Question 4 In many developing countries such as India, what might be a primary driver of fintech innovations? 1 / 1 point Low penetration of mobile phone services and high usage/data…
1. Question 1 Consider a local M-PESA agent located in a convenience store in Kisumu, Kenya. What is the agent’s primary operational decision? 1 / 1 point Manage the inventory of physical…
