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Blockchain CBBF Practice Test - Questions Answers, Page 2

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List of questions

Question 11

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Blockchains work best when they are____________________.

combined with other technologies
combined with other technologies
used for financial applications
used for financial applications
used alone
used alone
used as an alternative to a database
used as an alternative to a database
Suggested answer: B
asked 16/09/2024
istvan Balla
45 questions

Question 12

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What is a hash function?

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

Question 13

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Blockchains are being implemented in the food supply chain because_____________.

consumers demand to know where their food comes from
consumers demand to know where their food comes from
it allows farm to table accountability for safety
it allows farm to table accountability for safety
they have the potential to provide fast, specific supplier data
they have the potential to provide fast, specific supplier data
it prevents food waste if a food contamination problem occurs
it prevents food waste if a food contamination problem occurs
All of the above
All of the above
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
44 questions

Question 14

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Which of the following are practical use cases for Blockchain?

Voting
Voting
A video sharing website
A video sharing website
Medical records
Medical records
Identity management
Identity management
All of the above
All of the above
Suggested answer: E
Explanation:

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

asked 16/09/2024
Ana Santos
49 questions

Question 15

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Which item(s) make up a block header?

The hash of the Merkle root and the header of the previous block
The hash of the Merkle root and the header of the previous block
The hash of every transaction in a specific block and the next block
The hash of every transaction in a specific block and the next block
The time stamp of the block and the genesis block hash
The time stamp of the block and the genesis block hash
The hash of the previous block
The hash of the previous block
Suggested answer: D
Explanation:

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

asked 16/09/2024
Sivakumar Balasundram
48 questions

Question 16

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How is Blockchain benefiting voting?

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Question 17

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

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Question 18

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The Ethereum Blockchain provides a/an _____________ virtual machine.

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Question 19

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

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Question 20

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

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Total 84 questions
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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?