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Blockchain CBBF Practice Test - Questions Answers, Page 6
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Question 51
What are the drawbacks of using Blockchain? Select all that apply
A.
High cost of developers
B.
Changing technology and the lack of a stable standard
C.
Its use of cryptography
D.
Its use of new applications
Suggested answer: B
Question 52
A Blockchain provides______________.
A.
true information by all parties involved
B.
a trusted transaction between untrusted parties
C.
the easiest way to conduct international transactions
D.
only trusted banks for conducting transactions
Suggested answer: A
Question 53
The Blockchain ledger is commonly referred to as___________.
A.
a database ledger
B.
a triple-entry ledger
C.
a double-entry ledger
D.
a genesis block
Suggested answer: A
Question 54
Blockchain has more built-in security than a standard database.
A.
True
B.
False
Suggested answer: A
Question 55
In which consensus algorithm is a nonce used?
A.
Proof of Activity
B.
Proof of Work
C.
Proof of Stake
D.
Proof of Burn
E.
All of the above
Suggested answer: B
Explanation:
Reference: https://www.mycryptopedia.com/bitcoin-nonce-explained/
Question 56
What does immutable mean?
A.
Fault tolerant
B.
Unable to be changed
C.
Highly secure
D.
None of the above
Suggested answer: B
Question 57
How are blocks chained together?
A.
By sharing the same transaction details
B.
Information of the previous block is embedded into the current block through hashing
C.
Information of the current block is embedded into the genesis block
D.
With a physical chain
Suggested answer: B
Question 58
Which of these applications would be suited for a private Blockchain?
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Question 59
How would a developer make a change to Blockchain protocol?
Question 60
How do consensus algorithms like Proof of Work or Proof of Stake incentivize miners to participate?
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