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Blockchain CBBF Practice Test - Questions Answers, Page 3

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Why is Blockchain important?
Blockchain is always distributed.
How does a private Blockchain differ from a public one? Select all that apply.
What is a private Blockchain used instead of a public one?
Where is a Blockchain's central server?
A Blockchain provides______________.
What is a node in a Blockchain? Select all that apply.
Blockchain is always decentralized.
A smart contract on the Blockchain provides __________. Select all that apply.
What is a block?

Question 21

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Once a record is stored on the Blockchain ____________.

A.
the record is moved to a secure server
A.
the record is moved to a secure server
Answers
B.
the record is stored on a central node
B.
the record is stored on a central node
Answers
C.
it can be changed by an authorized person
C.
it can be changed by an authorized person
Answers
D.
the record is permanent
D.
the record is permanent
Answers
Suggested answer: D

Explanation:

Reference can be changed by an authorized person

asked 16/09/2024
Maheshkumar Karuppaiah
34 questions

Question 22

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An asset is defined as ____________.

A.
all records on a database
A.
all records on a database
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B.
any data on the ledger
B.
any data on the ledger
Answers
C.
anything of value requiring accountability of ownership
C.
anything of value requiring accountability of ownership
Answers
D.
any record on a private network
D.
any record on a private network
Answers
Suggested answer: C
asked 16/09/2024
Anthony Agbale
46 questions

Question 23

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One solution to increasing Blockchain Transactions Per Second (TPS) is________.

A.
adding more network nodes
A.
adding more network nodes
Answers
B.
off-chain transactions
B.
off-chain transactions
Answers
C.
using faster microprocessors
C.
using faster microprocessors
Answers
D.
fewer regulations
D.
fewer regulations
Answers
Suggested answer: B
asked 16/09/2024
Tammy Tran
30 questions

Question 24

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Blockchain applications can provide____________________.

A.
the elimination of intermediaries
A.
the elimination of intermediaries
Answers
B.
building more trust between trusted parties
B.
building more trust between trusted parties
Answers
C.
collaboration between trusted parties
C.
collaboration between trusted parties
Answers
D.
better cooperation between banks
D.
better cooperation between banks
Answers
Suggested answer: A
asked 16/09/2024
Ishan Patel
42 questions

Question 25

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A Blockchain does NOT provide which attribute?

A.
Security through distribution
A.
Security through distribution
Answers
B.
Anonymity through cryptography
B.
Anonymity through cryptography
Answers
C.
Fault Tolerance through distribution
C.
Fault Tolerance through distribution
Answers
D.
Immutability through hashing
D.
Immutability through hashing
Answers
Suggested answer: B
asked 16/09/2024
Robert Miletich
46 questions

Question 26

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____________ledger technology is referred to as DLT.

A.
Distributed
A.
Distributed
Answers
B.
Decentralized
B.
Decentralized
Answers
C.
Database
C.
Database
Answers
D.
All of the above
D.
All of the above
Answers
E.
None of the above
E.
None of the above
Answers
Suggested answer: A

Explanation:

Reference: https://cryptocurrencyfacts.com/what-is-distributed-ledger-technology-dlt/

asked 16/09/2024
JULIAN SSEMALULU
21 questions

Question 27

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In a private business Blockchain, transactions are endorsed by______________.

A.
only relevant business participants
A.
only relevant business participants
Answers
B.
only the smart contract developer
B.
only the smart contract developer
Answers
C.
all the nodes on the Blockchain
C.
all the nodes on the Blockchain
Answers
D.
all participants with access to the network
D.
all participants with access to the network
Answers
Suggested answer: A

Explanation:

Reference: https://developer.ibm.com/opentech/wp-content/uploads/sites/43/2017/08/Blockchain-Explained-v4.06.AdaptedforBeirutConferenceAug2017-1.pdf (p.10)

asked 16/09/2024
Alex Rector
30 questions

Question 28

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Blockchain allows for which of the following?

A.
Anonymous Cryptography
A.
Anonymous Cryptography
Answers
B.
Trust in central authorities
B.
Trust in central authorities
Answers
C.
A fast and efficient ledger
C.
A fast and efficient ledger
Answers
D.
A peer to peer ledger without the need of a third party
D.
A peer to peer ledger without the need of a third party
Answers
Suggested answer: D

Explanation:

Reference: https://intellipaat.com/blog/what-is-blockchain-technology/

asked 16/09/2024
Christopher Schmidt
38 questions

Question 29

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Smart Contracts DO NOT provide_______________.

A.
Authority
A.
Authority
Answers
B.
Anonymity
B.
Anonymity
Answers
C.
Efficiency
C.
Efficiency
Answers
D.
Accuracy
D.
Accuracy
Answers
Suggested answer: B
asked 16/09/2024
Abdul Majid Pasha
39 questions

Question 30

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The transaction hash contained in a block is the______________.

A.
unique number to show it's a Bitcoin block
A.
unique number to show it's a Bitcoin block
Answers
B.
same as the user private key
B.
same as the user private key
Answers
C.
digital fingerprint of the block
C.
digital fingerprint of the block
Answers
D.
metadata used for ID
D.
metadata used for ID
Answers
Suggested answer: C

Explanation:

Reference: https://www.oreilly.com/library/view/mastering-bitcoin/9781491902639/ch07.html

asked 16/09/2024
Josh Rose
40 questions
Total 84 questions
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