WorksheetsBlock Chain Quiz ( Sample)
Total questions: 9
Worksheet time: 2mins
Name
Class
Date
1.
What is a Blockchain?
a)
A. A type of cryptocurrency
b)
B. A decentralized and distributed ledger
c)
C. A centralized database
d)
D. A computer programming language
2.
What is the role of miners in a blockchain network?
a)
A. Creating new coins
b)
B. Validating transactions and adding them to the blockchain
c)
C. Managing smart contracts
d)
D. Setting the rules for the blockchain
3.
What does the term "Decentralization" mean in the context of blockchain?
a)
A. A single entity or authority controls the entire network
b)
B. Power and control are distributed among multiple participants
c)
C. All transactions are private and hidden
d)
D. The blockchain can be easily modified
4.
What is a Cryptocurrency Wallet used for?
a)
A. Storing physical cash
b)
B. Storing digital files
c)
C. Storing and managing digital assets like cryptocurrencies
d)
D. Sending emails securely
5.
What is the key feature of a Smart Contract?
a)
A. It requires manual execution by a third party
b)
B. It is written in natural language
c)
C. It self-executes when predefined conditions are met
d)
D. It can only be executed by a government authority
6.
What is the purpose of Public and Private Keys in blockchain cryptography?
a)
A. Public Key is used for encryption, and Private Key is used for decryption
b)
B. Public Key is used for decryption, and Private Key is used for encryption
c)
C. Both keys are used for encryption
d)
D. Both keys are used for decryption
7.
What does the term "Immutable" mean in the context of blockchain?
a)
A. Data can be easily modified
b)
B. Data can never be changed or tampered with once it's added to the blockchain
c)
C. Data can only be accessed by a single user
d)
D. Data is constantly updated
8.
What is a Node in a blockchain network?
a)
A. A type of cryptocurrency
b)
B. A participant in the network that stores a copy of the blockchain
c)
C. A specialized computer for mining
d)
D. A digital signature
e)
Option 5
9.
Which blockchain platform is known for supporting Smart Contracts and Decentralized Applications (DApps)?
a)
A. Bitcoin
b)
B. Ethereum
c)
C. Litecoin
d)
D. Ripple
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