About this Study Set
This study set covers Computer Science And Economics through
20 practice questions.
A rigorous examination of blockchain architecture, cryptographic principles, and the historical development of digital assets. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 20 questions from the
Advanced Cryptocurrency Fundamentals study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which specific cryptographic primitive is utilized in Bitcoin's proof-of-work consensus mechanism to ensure block integrity?
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A
SHA-256
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B
AES-256
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C
RSA-4096
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D
ECDSA
2
In the context of the Bitcoin protocol, what does a 'UTXO' represent?
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A
Unspent Transaction Output
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B
Universal Token Exchange Order
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C
Unique Transaction Verification Object
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D
Unified Transfer X-chain Operation
3
What is the primary function of a Merkle Tree within a blockchain data structure?
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A
To facilitate rapid searching of transaction data
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B
To reduce the energy consumption of mining
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C
To provide anonymity for network participants
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D
To enable cross-chain compatibility
4
What is the 'halving' event in the Bitcoin protocol?
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A
The reduction of the block reward by 50%
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B
The splitting of the blockchain into two separate chains
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C
The decrease of transaction fees by half
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D
The process of doubling the circulating supply
5
Which Byzantine Fault Tolerance mechanism is utilized by Ethereum following 'The Merge'?
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A
Proof-of-Stake
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B
Proof-of-Work
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C
Proof-of-Authority
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D
Proof-of-Burn
6
What does the 'nonce' field specifically control in a block header?
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A
The variable input for the hashing algorithm
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B
The timestamp of the transaction
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C
The public key of the miner
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D
The fee structure of the block
7
Which term describes the process of sending cryptocurrency to an address from which it cannot be retrieved?
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A
Burning
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B
Minting
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C
Forking
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D
Staking
8
In a Proof-of-Stake system, what does 'slashing' refer to?
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A
The penalty for validators who act maliciously
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B
The process of creating new coins
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C
The reduction of transaction speed
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D
The removal of old blocks from the ledger
9
What is the primary purpose of a 'Hard Fork' in a blockchain protocol?
-
A
To implement non-backward-compatible protocol changes
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B
To increase the number of wallets
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C
To lower the market volatility
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D
To enable private transactions
10
Which layer of the blockchain stack handles the execution of smart contracts?
-
A
Application Layer
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B
Network Layer
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C
Consensus Layer
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D
Data Layer
11
What does 'EIP-1559' specifically introduce to the Ethereum network?
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A
A mechanism for burning a portion of transaction fees
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B
A shift to quantum-resistant encryption
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C
A reduction in node requirements
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D
An increase in block size limits
12
What is the definition of a '51% attack' on a blockchain network?
-
A
A miner gaining control of a majority of the hash power
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B
An attack on the user's private keys
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C
A vulnerability in the wallet software
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D
A failure in the P2P connection protocol
13
What is the primary function of a 'zero-knowledge proof' in privacy-focused blockchains?
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A
To prove a statement is true without revealing the data
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B
To compress transaction size
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C
To increase mining rewards
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D
To encrypt the entire blockchain ledger
14
In decentralized finance (DeFi), what is an 'Automated Market Maker' (AMM)?
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A
A protocol that uses algorithms to price assets
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B
A physical kiosk for crypto exchange
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C
A government regulatory body
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D
A type of high-frequency trading bot
15
What characterizes an 'ERC-20' token on the Ethereum network?
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A
It is a fungible token standard
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B
It is a non-fungible asset
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C
It is a governance-only token
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D
It is a side-chain specific currency
16
What is the 'Genesis Block' in any blockchain?
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A
The first block of the chain
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B
The block where a fork occurs
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C
The largest block ever mined
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D
The block with the highest transaction volume
17
Which problem does the 'Lightning Network' aim to solve for Bitcoin?
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A
Scalability and transaction speed
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B
Mining energy consumption
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C
Decentralization of nodes
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D
Anonymity of users
18
What is the main role of an 'Oracle' in smart contract development?
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A
Providing real-world data to the blockchain
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B
Executing code on the mainnet
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C
Storing private user information
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D
Calculating complex cryptographic hashes
19
What distinguishes 'Cold Storage' from 'Hot Wallets'?
-
A
It is stored offline
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B
It is stored on a mobile device
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C
It is backed by gold
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D
It requires an internet connection
20
What is the 'Difficulty Adjustment' algorithm in Bitcoin designed to maintain?
-
A
Average block generation time
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B
The price of Bitcoin
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C
The number of active miners
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D
The total circulating supply
