Test Your Knowledge With A Blockchain Quiz

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| By Lynn Bradley
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Lynn Bradley
Community Contributor
Quizzes Created: 319 | Total Attempts: 539,367
| Attempts: 3,664
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  • 1/10 Questions

    Who invented blockchain?

    • Kakashi Burato
    • Horochi Konoharu
    • Satoshi Nakamoto
    • None of the above
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About This Quiz

Take a quiz on Blockchain and find out how much you know about the modern-day technology with is known as internet money which doesn't allow physical cash but rather Bitcoins and another cryptocurrency. The currency is encrypted that's why it's known as a cryptocurrency. Take this test to test how much you know about Blockchain.

Test Your Knowledge With A Blockchain Quiz - Quiz

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  • 2. 
    Which is true, blockchains are secured. - ProProfs

    Which is true, blockchains are secured.

    • True

    • False

    • Yes

    • I don't know

    Correct Answer
    A. True
    Explanation
    Blockchains are secured because they use advanced cryptographic techniques to ensure the integrity and immutability of data. Each block in the blockchain is linked to the previous block through a cryptographic hash, making it extremely difficult for anyone to tamper with the data without being detected. Additionally, blockchains often employ consensus mechanisms, such as proof of work or proof of stake, which further enhance the security of the network by requiring participants to validate transactions and reach a consensus before adding them to the blockchain. Overall, these security measures make blockchains highly secure and resistant to hacking or unauthorized modifications.

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  • 3. 
    How are blockchains linked? - ProProfs

    How are blockchains linked?

    • Connection

    • Gum

    • A software

    • Cryptography

    Correct Answer
    A. Cryptography
    Explanation
    Blockchains are linked through the use of cryptography. Cryptography is a method of securing information by converting it into a code that can only be deciphered with the correct key. In the context of blockchains, cryptography is used to create a secure and tamper-proof link between blocks of data. Each block contains a unique cryptographic hash that is generated based on the data within the block and the hash of the previous block. This creates a chain of blocks, where any change in the data of a previous block would result in a different hash, alerting the network to tampering attempts.

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  • 4. 
    Which year was blockchain invented? - ProProfs

    Which year was blockchain invented?

    • 2008

    • 2011

    • 2005

    • 2000

    Correct Answer
    A. 2008
    Explanation
    Blockchain was invented in 2008. This technology was introduced by an anonymous person or group of people using the pseudonym Satoshi Nakamoto. In 2008, Nakamoto published a whitepaper titled "Bitcoin: A Peer-to-Peer Electronic Cash System," which outlined the concept of blockchain as the underlying technology for the cryptocurrency Bitcoin. The invention of blockchain revolutionized the way transactions are recorded and verified, providing a decentralized and transparent system that has since been adopted for various applications beyond cryptocurrencies.

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  • 5. 
    Who opened a blockchain innovation research? - ProProfs

    Who opened a blockchain innovation research?

    • IBM

    • Microsoft

    • Ubisoft

    • Samsung

    Correct Answer
    A. IBM
    Explanation
    IBM is the correct answer because they have a history of being at the forefront of technological innovation and have been actively involved in blockchain research and development. They have invested heavily in blockchain technology and have opened several blockchain innovation research centers around the world. IBM's commitment to exploring the potential of blockchain technology makes them the most likely candidate to have opened a blockchain innovation research.

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  • 6. 
    What's a blockchain? - ProProfs

    What's a blockchain?

    • A block of chains

    • A list of records called block

    • A music album

    • None of the above

    Correct Answer
    A. A list of records called block
    Explanation
    A blockchain is a list of records called blocks. Each block contains a set of transactions or data, and is linked to the previous block through a cryptographic hash. This creates a chain of blocks, where each block references the previous one, hence the term "blockchain". This technology is commonly used in cryptocurrencies like Bitcoin, where it ensures the security and immutability of transactions.

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  • 7. 
    Why was it created? - ProProfs

    Why was it created?

    • To improve cryptocurrency

    • To work as a ledger

    • To modernize interest noney

    • None of the above

    Correct Answer
    A. To work as a ledger
    Explanation
    The correct answer is "To work as a ledger." A ledger is a record-keeping system that tracks transactions and balances. In the context of cryptocurrencies like Bitcoin, a blockchain acts as a decentralized ledger that securely records all transactions. It ensures transparency, immutability, and eliminates the need for intermediaries like banks. Therefore, the creation of blockchain technology was primarily aimed at functioning as a ledger to enable secure and transparent transactions in the cryptocurrency ecosystem.

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  • 8. 
    Which of the following best describes the primary benefit of using a blockchain? - ProProfs

    Which of the following best describes the primary benefit of using a blockchain?

    • Centralized data storage for easier management. 

    • The ability to process transactions without the need for a central authority or intermediary.

    • Enhanced transparency and traceability of transactions for a specific group of users. 

    • Unlimited modification of data for flexibility.

    Correct Answer
    A. The ability to process transactions without the need for a central authority or intermediary.
    Explanation
    Blockchain technology enables decentralized processing of transactions, which allows for peer-to-peer interactions without the need for a central authority or middlemen. This characteristic provides a level of trust and security, as the transactions are immutable and transparent to all participants in the network. This makes blockchain particularly valuable in scenarios where a trustless system is beneficial.

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  • 9. 
    When did blockchain grow from 50GB to 100GB? - ProProfs

    When did blockchain grow from 50GB to 100GB?

    • 2015

    • 2009

    • 2012

    • 2017

    Correct Answer
    A. 2017
  • 10. 
    When was blockchain officially called blockchain? - ProProfs

    When was blockchain officially called blockchain?

    • 2014

    • 2008

    • 2018

    • 2010

    Correct Answer
    A. 2008
    Explanation
    The term "blockchain" was first officially used to describe the chain of blocks in Bitcoin in the original 2008 Bitcoin whitepaper by an individual (or group) under the pseudonym Satoshi Nakamoto. However, the concept of a chain of blocks had existed prior, and the technology became widely referred to as "blockchain" as it gained popularity post-Bitcoin's release. The term really came into widespread use several years later as the technology underlying Bitcoin became of interest for other applications beyond cryptocurrencies.

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  • Current Version
  • Apr 05, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 01, 2018
    Quiz Created by
    Lynn Bradley

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