
IGCSE CS 5.2 Blockchain
Authored by Krishna Sekhar
Computers
10th Grade
Used 2+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is blockchain?
A decentralized database with no centralized control
A physical chain made of blocks
A centralized database controlled by a single entity
A type of spreadsheet for recording information
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the unique identifier generated by a cryptographic algorithm for each block?
Fingerprint
Hash
Timestamp
Value
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first block in a blockchain known as?
Origin block
Genesis block
Inception block
Alpha block
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the method of data storage in blockchain called?
Decentralized
Centralized
Non-destructive
Destructive
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the reward received by nodes for validating transactions in blockchain?
Proof of Stake
Proof of Concept
Proof of Work
Proof of Authority
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is likely to be the future of governments in terms of currency according to the text?
Transitioning from fiat currency to cryptocurrency
Abandoning digital transactions altogether
Adopting a single blockchain for all transactions
Moving from cryptocurrency to fiat currency
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What problem can blockchain identity systems potentially solve?
Creating more complex security measures
Providing a single source for verifying identities
Increasing fraud in financial transactions
Reducing the number of digital transactions
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