File Info
| Exam | Certified Blockchain Business Foundations |
| Number | CBBF |
| File Name | Blockchain.CBBF.Pass4Sure.1999-11-30.33q.vcex |
| Size | 16 KB |
| Posted | Nov 30, 1999 |
| Download | Blockchain.CBBF.Pass4Sure.1999-11-30.33q.vcex |
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Demo Questions
Question 1
What is Ethereum?
- Another name for Bitcoin
- A platform for creating decentralized applications
- A currency
- Another name for Blockchain
Correct answer: B
Explanation:
Reference: https://blockgeeks.com/guides/ethereum/ Reference: https://blockgeeks.com/guides/ethereum/
Question 2
Blockchain is always a better alternative to a standard database.
- True
- False
Correct answer: B
Explanation:
Reference: https://www.coindesk.com/information/what-is-the-difference-blockchain-and-database Reference: https://www.coindesk.com/information/what-is-the-difference-blockchain-and-database
Question 3
How does a private Blockchain differ from a public one? Select all that apply.
- A private Blockchain does not use proof of work consensus
- A private Blockchain is more efficient and has faster transaction times
- A private Blockchain is not distributed
- A private Blockchain often requires the identity of users to be known
Correct answer: D
Explanation:
Reference: https://medium.com/coinmonks/public-vs-private-blockchain-in-a-nutshell-c9fe284fa39f Reference: https://medium.com/coinmonks/public-vs-private-blockchain-in-a-nutshell-c9fe284fa39f
Question 4
Why is a private Blockchain used instead of a public one?
- To limit user access and permissions
- It is less expensive to develop
- It requires less mining power than a public Blockchain
- It requires fewer administrators to manage it
Correct answer: A
Explanation:
Reference: https://medium.com/coinmonks/public-vs-private-blockchain-in-a-nutshell-c9fe284fa39f Reference: https://medium.com/coinmonks/public-vs-private-blockchain-in-a-nutshell-c9fe284fa39f
Question 5
A distributed network is always decentralized.
- True
- False
Correct answer: B
Explanation:
Reference: https://stackoverflow.com/questions/49195562/difference-between-a-distributed-and-a-decentralized-network Reference: https://stackoverflow.com/questions/49195562/difference-between-a-distributed-and-a-decentralized-network
Question 6
Blockchains are being implemented in the food supply chain because_____________.
- consumers demand to know where their food comes from
- it allows farm to table accountability for safety
- they have the potential to provide fast, specific supplier data
- it prevents food waste if a food contamination problem occurs
- All of the above
Correct answer: E
Explanation:
Reference: https://www.forbes.com/sites/jennysplitter/2018/09/30/what-can-blockchain-really-do-for-the-food-industry/#151984fe488e Reference: https://www.forbes.com/sites/jennysplitter/2018/09/30/what-can-blockchain-really-do-for-the-food-industry/#151984fe488e
Question 7
The Ethereum Blockchain provides a/an _____________ virtual machine.
- Windows compatible
- energy efficient
- Linux compatible
- turing-complete
Correct answer: D
Explanation:
Reference: https://www.mycryptopedia.com/ethereum-virtual-machine-explained/ Reference: https://www.mycryptopedia.com/ethereum-virtual-machine-explained/
Question 8
One of the big issues that new financial transaction Blockchain solutions face is____________.
- increasing the number of transactions per second (TPS)
- the inability to find use cases
- solving user identity
- getting banks to cooperate
Correct answer: A
Explanation:
Reference: https://www.cnbc.com/2018/10/01/five-crucial-challenges-for-blockchain-to-overcome-deloitte.html Reference: https://www.cnbc.com/2018/10/01/five-crucial-challenges-for-blockchain-to-overcome-deloitte.html
Question 9
Blockchain applications can provide____________________.
- the elimination of intermediaries
- building more trust between trusted parties
- collaboration between trusted parties
- better cooperation between banks
Correct answer: A
Question 10
A Blockchain does NOT provide which attribute?
- Security through distribution
- Anonymity through cryptography
- Fault Tolerance through distribution
- Immutability through hashing
Correct answer: B
