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A. Crypto Exchange B. Crypto Wallet C. Crypto Portfolio D. Crypto Block AnswerOption: C
Read More »What is a “hard fork” in the blockchain?
A. A software upgrade that is backward compatible B. A software change that creates two separate chains and is not backward compatible C. A temporary divergence in the blockchain D. An irreversible transaction within the blockchain AnswerOption: B
Read More »What is a 51% attack in the context of blockchain security?
A. A situation where more than half of a blockchain’s nodes fail B. An attack where miners obtain control of more than 51% of the network’s mining power C. A hack that leads to the duplication of more than 51% of a cryptocurrency D. A security breach that impacts 51% of all blockchain wallets AnswerOption: B
Read More »Which cryptocurrency introduced the concept of smart contracts, enabling complex automated transactions?
A. Bitcoin B. Cardano C. Ethereum D. Litecoin AnswerOption: C
Read More »Which technique is used to achieve consensus in a blockchain without mining, instead relying on validators who lock up coins as collateral?
A. Proof of Work (PoW) B. Proof of Stake (PoS) C. Proof of Authority (PoA) D. Proof of Burn (PoB) AnswerOption: B
Read More »Which of the following is a privacy-focused cryptocurrency designed to provide anonymous transactions?
A. Bitcoin B. Zcash C. Ripple D. Tether AnswerOption: B
Read More »What does the term “HODL” stand for in the cryptocurrency community?
A. Hold On for Dear Life B. High Order Distributed Ledger C. Highly Optimized Decentralized Ledger D. Heavy Operational Digital Ledger AnswerOption: A
Read More »What is “gas” in the context of Ethereum?
A. The fuel used for mining Bitcoin B. A unit that measures the amount of computational effort required to execute operations C. A type of stablecoin D. A physical commodity backing Ether AnswerOption: B
Read More »Which algorithm is commonly used by cryptocurrencies to secure their blockchain through hashing?
A. SHA-256 B. MD5 C. AES D. RSA AnswerOption: A
Read More »What is the primary purpose of a Decentralized Autonomous Organization (DAO)?
A. To centralize control of cryptocurrencies B. To automate decision-making and governance using smart contracts C. To replace traditional financial institutions D. To create a central authority for blockchain regulation AnswerOption: B
Read More »Which of the following is NOT a type of cryptocurrency wallet?
A. Hardware Wallet B. Software Wallet C. Paper Wallet D. Gold Wallet AnswerOption: D
Read More »What is the maximum supply of Bitcoin that can ever exist?
A. 21 million B. 42 million C. 84 million D. 100 million AnswerOption: A
Read More »What is a stablecoin?
A. A cryptocurrency with a fixed supply B. A cryptocurrency backed by a reserve asset like fiat currency C. A cryptocurrency with unpredictable value D. A cryptocurrency designed for speculative investment AnswerOption: B
Read More »Which consensus mechanism does Bitcoin use to validate transactions?
A. Proof of Stake (PoS) B. Proof of Authority (PoA) C. Proof of Work (PoW) D. Delegated Proof of Stake (DPoS) AnswerOption: C
Read More »What is the process of verifying transactions and adding them to the blockchain called?
A. Staking B. Mining C. Trading D. Hashing AnswerOption: B
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