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killexams.com BlockChain CBBF
Certified Blockchain Business Foundations
https://killexams.com/pass4sure/exam-detail/CBBF
Question: 70
Blockchains are being implemented in the food supply chain because .
A. consumers demand to know where their food comes from B. 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
Answer: E
#151984fe488e
Question: 71
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
Answer: D
Reference: https://medium.com/coinmonks/public-vs-private-blockchain-in-a-nutshell-c9fe284fa39f
Question: 72
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
Answer: A
Reference: https://medium.com/coinmonks/public-vs-private-blockchain-in-a-nutshell-c9fe284fa39f
Question: 73
A distributed network is always decentralized.
True
False
Answer: B
Reference: https://stackoverflow.com/questions/49195562/difference-between-a-distributed-and-a-decentralized- network
Question: 74
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
Answer: A
Reference: https://lisk.io/academy/blockchain-basics/benefits-of-blockchain/why-is-blockchain-trustless
Question: 75
Blockchain is always a better alternative to a standard database.
True
False
Answer: B
Reference: https://www.coindesk.com/information/what-is-the-difference-blockchain-and-database
Question: 76
Blockchain is always decentralized.
True
False
Answer: A
Question: 77
What is Ethereum?
Another name for Bitcoin
A platform for creating decentralized applications
A currency
Another name for Blockchain
Answer: B
Reference: https://blockgeeks.com/guides/ethereum/
Question: 78
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
Answer: D
Question: 79
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
Answer: A
Question: 80
What does P2P stand for?
Person to Person
Public to Person
Peer to Peer
Product to Person
None of the above
Answer: C