ExamGecko
Search Search Login
Home Home / Blockchain / CBBF
Ask QuestionAsk Question

Blockchain CBBF Practice Test - Questions Answers, Page 2

Question list
Search
Search
Open VPLUS File
Convert VPLUS to PDF

Related questions

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 11

Report
Export
Collapse

Blockchains work best when they are____________________.

A.
combined with other technologies
A.
combined with other technologies
Answers
B.
used for financial applications
B.
used for financial applications
Answers
C.
used alone
C.
used alone
Answers
D.
used as an alternative to a database
D.
used as an alternative to a database
Answers
Suggested answer: B
asked 16/09/2024
istvan Balla
41 questions

Question 12

Report
Export
Collapse

What is a hash function?

A.
A one-way function that converts input to a unique string output
A.
A one-way function that converts input to a unique string output
Answers
B.
A function that stores data behind a key
B.
A function that stores data behind a key
Answers
C.
A two-way function used for condensing information
C.
A two-way function used for condensing information
Answers
D.
The block-ID of the block
D.
The block-ID of the block
Answers
E.
All the above
E.
All the above
Answers
Suggested answer: D
asked 16/09/2024
Pedro Miguel Garcia Valdes
43 questions

Question 13

Report
Export
Collapse

Blockchains are being implemented in the food supply chain because_____________.

A.
consumers demand to know where their food comes from
A.
consumers demand to know where their food comes from
Answers
B.
it allows farm to table accountability for safety
B.
it allows farm to table accountability for safety
Answers
C.
they have the potential to provide fast, specific supplier data
C.
they have the potential to provide fast, specific supplier data
Answers
D.
it prevents food waste if a food contamination problem occurs
D.
it prevents food waste if a food contamination problem occurs
Answers
E.
All of the above
E.
All of the above
Answers
Suggested answer: E

Explanation:

Reference: https://www.forbes.com/sites/jennysplitter/2018/09/30/what-can-blockchain-really-do-for-the-food-industry/#151984fe488e

asked 16/09/2024
Diogo Vitor
38 questions

Question 14

Report
Export
Collapse

Which of the following are practical use cases for Blockchain?

A.
Voting
A.
Voting
Answers
B.
A video sharing website
B.
A video sharing website
Answers
C.
Medical records
C.
Medical records
Answers
D.
Identity management
D.
Identity management
Answers
E.
All of the above
E.
All of the above
Answers
Suggested answer: E

Explanation:

Reference: https://www.mycryptopedia.com/16-promising-blockchain-use-cases/

asked 16/09/2024
Ana Santos
40 questions

Question 15

Report
Export
Collapse

Which item(s) make up a block header?

A.
The hash of the Merkle root and the header of the previous block
A.
The hash of the Merkle root and the header of the previous block
Answers
B.
The hash of every transaction in a specific block and the next block
B.
The hash of every transaction in a specific block and the next block
Answers
C.
The time stamp of the block and the genesis block hash
C.
The time stamp of the block and the genesis block hash
Answers
D.
The hash of the previous block
D.
The hash of the previous block
Answers
Suggested answer: D

Explanation:

Reference: https://www.cryptocompare.com/coins/guides/what-is-a-block-header-in-bitcoin/

asked 16/09/2024
Sivakumar Balasundram
41 questions

Question 16

Report
Export
Collapse

How is Blockchain benefiting voting?

A.
By revealing the identity of each voter and who or what they voted for
A.
By revealing the identity of each voter and who or what they voted for
Answers
B.
By controlling who gets to vote
B.
By controlling who gets to vote
Answers
C.
By only allowing a certain number of votes per person
C.
By only allowing a certain number of votes per person
Answers
D.
By allowing voters to trust their vote has been counted
D.
By allowing voters to trust their vote has been counted
Answers
Suggested answer: D
asked 16/09/2024
Venkat Burri
43 questions

Question 17

Report
Export
Collapse

Which of the following statements sums up the Proof of Work consensus process?

A.
Miners complete to find a nonce results in a hash that starts with a predetermined number of leading zeros.
A.
Miners complete to find a nonce results in a hash that starts with a predetermined number of leading zeros.
Answers
B.
Miners put up a stake. A miner is then selected based on stake value to add a new block to the chain. If a miner adds an invalid block to the chain, that miner loses their stake.
B.
Miners put up a stake. A miner is then selected based on stake value to add a new block to the chain. If a miner adds an invalid block to the chain, that miner loses their stake.
Answers
C.
All nodes agree on the data of the transaction.
C.
All nodes agree on the data of the transaction.
Answers
D.
Miners send assets to an inactive address. This process selects the next owner of a block.
D.
Miners send assets to an inactive address. This process selects the next owner of a block.
Answers
Suggested answer: C

Explanation:

Reference: https://www.nichanank.com/blog/2018/5/23/consensus-algorithms-pow

asked 16/09/2024
Alan Coutinho
42 questions

Question 18

Report
Export
Collapse

The Ethereum Blockchain provides a/an _____________ virtual machine.

A.
Windows compatible
A.
Windows compatible
Answers
B.
energy efficient
B.
energy efficient
Answers
C.
Linux compatible
C.
Linux compatible
Answers
D.
turing-complete
D.
turing-complete
Answers
Suggested answer: D

Explanation:

Reference: https://www.mycryptopedia.com/ethereum-virtual-machine-explained/

asked 16/09/2024
Paul Beugelsdijk
40 questions

Question 19

Report
Export
Collapse

Which Blockchain protocol uses Proof of Work Consensus? Select all that apply

A.
Hyperledger
A.
Hyperledger
Answers
B.
Corda
B.
Corda
Answers
C.
Bitcoin
C.
Bitcoin
Answers
D.
Ethereum
D.
Ethereum
Answers
E.
All of the above
E.
All of the above
Answers
Suggested answer: A, C, D
asked 16/09/2024
Miguel Villanueva
33 questions

Question 20

Report
Export
Collapse

One of the big issues that new financial transaction Blockchain solutions face is____________.

A.
increasing the number of transactions per second (TPS)
A.
increasing the number of transactions per second (TPS)
Answers
B.
the inability to find use cases
B.
the inability to find use cases
Answers
C.
solving user identity
C.
solving user identity
Answers
D.
getting banks to cooperate
D.
getting banks to cooperate
Answers
Suggested answer: A

Explanation:

Reference: https://www.cnbc.com/2018/10/01/five-crucial-challenges-for-blockchain-to-overcome-deloitte.html

asked 16/09/2024
Aiko Abrassart
33 questions
Total 84 questions
Go to page: of 9
ExamGecko

Copyright @2023 ExamGecko | All right reserved

Mail us: [email protected]
About us
Contact us
Convert VPLUS to PDF
Open VPLUS files Easily and Quickly
Privacy policy
Terms
Disclaimer
Refund policy
Copyright
Twitter X
Facebook
Medium