Download Certified Blockchain Business Foundations.CBBF.VCEplus.2019-07-07.70q.vcex
| Vendor: | Blockchain |
| Exam Code: | CBBF |
| Exam Name: | Certified Blockchain Business Foundations |
| Date: | Jul 07, 2019 |
| File Size: | 32 KB |
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Demo Questions
Question 1
What does a Merkle tree provide?
- Efficient block lookups and protection against forgery
- Anonymity and transparency
- A Turing complete distributed network
- A way to deploy smart contracts onto the Blockchain
- All of the above
Correct answer: A
Question 2
What does P2P stand for?
- Person to Person
- Public to Person
- Peer to Peer
- Product to Person
- None of the above
Correct answer: C
Question 3
Blockchain is always decentralized.
- True
- False
Correct answer: A
Question 4
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 5
Why is Hyperledger a good business solution over other Blockchains?
- Always permissioned and private
- It can employ smart contracts
- Modular design allowing for flexibility in solution
- Multiple consensus methods can be chosen for use
- All the above
Correct answer: D
Question 6
Transparency allows_____________.
- a trustless system where users can be certain of a result
- easy iteration through the Blockchain
- Records on the Blockchain to never be changed
- users on the Blockchain to change data on the Blockchain
Correct answer: A
Explanation:
Reference: https://lisk.io/academy/blockchain-basics/benefits-of-blockchain/why-is-blockchain-trustless Reference: https://lisk.io/academy/blockchain-basics/benefits-of-blockchain/why-is-blockchain-trustless
Question 7
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 8
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 9
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 10
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
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