Blockchain Test
Quiz
•
Computers
•
7th Grade
•
Medium
Audrey Sicard
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of Blockchain according to the lesson?
A centralized system that manages digital transactions.
A decentralized digital ledger that stores information in blocks linked together in a chain.
A type of cryptocurrency used for online transactions.
A digital certificate of ownership for artwork.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a key feature of Blockchain?
Decentralization
Transparency
Mutability
Security
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Imagine a scenario where a group of banks decides to use a shared digital ledger to record transactions. How does this Blockchain-based system ensure the security and trustworthiness of transaction records?
By allowing easy changes to the transaction records once they are written.
By making it very difficult to change or tamper with the transaction records once they are added.
By storing all transaction records in a single location for easy access.
By requiring a centralized authority to validate all transactions.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the term 'immutability' refer to in the context of Blockchain?
The ability to change transaction records easily.
The transparency of the digital ledger.
The inability to change anything written once it is added to the blockchain.
The process of linking blocks together chronologically.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of linking blocks in a Blockchain?
To create a chronological order of transactions.
To reduce the size of the digital ledger.
To increase the speed of transaction processing.
To centralize the data storage.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Imagine a scenario where a group of friends decides to keep track of their shared expenses using a ledger. What does decentralization in this context refer to?
Having one friend control and manage the ledger alone.
Having multiple copies of the ledger stored in one friend's house.
Having multiple copies of the ledger distributed across each friend's house.
Having a transparent but centralized ledger system managed by a trusted friend.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is cryptocurrency?
A) A physical currency like coins and banknotes
B) A digital or virtual currency secured by cryptography
C) A type of credit card
D) A financial service provided by banks
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