Lightning Network MCQs September 30, 2025 by u930973931_answers 50 Score: 0 Attempted: 0/50 Subscribe 1. : The Lightning Network is primarily built to scale which blockchain? (A) Ethereum (B) Bitcoin (C) Cardano (D) Solana 2. : The Lightning Network is an example of which type of solution? (A) Layer 1 (B) Layer 2 (C) Layer 3 (D) Off-chain database 3. : The Lightning Network was first proposed in which year? (A) 2013 (B) 2015 (C) 2017 (D) 2019 4. : The Lightning Network primarily reduces ____. (A) Consensus difficulty (B) Transaction fees and confirmation time (C) Mining power (D) Security risks 5. : The Lightning Network uses which mechanism to enable instant payments? (A) Proof of Work (B) Payment Channels (C) Sharding (D) Mining Pools 6. : Which of the following is a major advantage of the Lightning Network? (A) Faster transactions (B) Lower transaction costs (C) Scalability improvement (D) All of the above 7. : The Lightning Network allows transactions to be conducted ____. (A) On-chain only (B) Off-chain between parties (C) Through miners directly (D) By replacing Layer 1 8. : Which type of contracts are used in the Lightning Network to secure off-chain payments? (A) Smart contracts (B) Hash Time-Locked Contracts (HTLCs) (C) Proof of Stake contracts (D) Sidechain contracts 9. : Which cryptocurrency benefits most from Lightning Network adoption? (A) Ethereum (B) Bitcoin (C) Ripple (D) Dogecoin 10. : The Lightning Network helps solve which major blockchain issue? (A) Scalability (B) Proof of Work difficulty (C) Token issuance (D) Decentralization 11. : Who were the original proposers of the Lightning Network? (A) Vitalik Buterin & Gavin Wood (B) Joseph Poon & Thaddeus Dryja (C) Satoshi Nakamoto & Hal Finney (D) Charles Hoskinson & Dan Larimer 12. : Payments on the Lightning Network are ____. (A) Slow but secure (B) Instant and low-cost (C) Expensive and irreversible (D) Always on-chain 13. : The Lightning Network uses which concept for routing payments? (A) Payment Channels Network (B) Smart contract execution (C) Validator committees (D) Proof of Stake 14. : Which country widely adopted the Lightning Network for Bitcoin payments? (A) India (B) El Salvador (C) China (D) Switzerland 15. : The Lightning Network reduces Bitcoin’s reliance on ____. (A) Layer 2 solutions (B) On-chain block space (C) Off-chain trust (D) Proof of Work 16. : In the Lightning Network, two parties open a channel by ____. (A) Creating an on-chain multi-signature transaction (B) Sending coins to an exchange (C) Using proof of stake (D) Mining a special block 17. : Which of these wallets supports Lightning Network payments? (A) Phoenix Wallet (B) MetaMask (C) Trust Wallet (D) Ledger Live only 18. : A key limitation of the Lightning Network is ____. (A) It cannot be used for Bitcoin (B) Requires liquidity in channels (C) Transactions are too slow (D) It lacks cryptographic security 19. : Which layer provides the security foundation for the Lightning Network? (A) Layer 1 (Bitcoin blockchain) (B) Layer 2 (C) Layer 3 (D) Network layer 20. : What happens when a Lightning payment channel is closed? (A) Transactions disappear (B) The final balance is settled on-chain (C) Coins are destroyed (D) New coins are mined 21. : The Lightning Network is most useful for ____. (A) High-value transactions only (B) Micro-payments (C) Mining new coins (D) Token creation 22. : Which consensus does the Lightning Network depend on for security? (A) Proof of Work of Bitcoin (B) Proof of Stake (C) Delegated Byzantine Fault Tolerance (D) Practical Byzantine Fault Tolerance 23. : The Lightning Network can theoretically handle ____ transactions per second. (A) Dozens (B) Thousands to millions (C) Only 7 (D) Less than 100 24. : Which feature ensures fairness in Lightning channels? (A) Hash Time-Locked Contracts (HTLCs) (B) Proof of Stake (C) Delegated Validators (D) Sharding 25. : What is the minimum requirement to open a Lightning channel? (A) Two parties with a funded Bitcoin transaction (B) A staking pool (C) Mining equipment (D) Validator committee 26. : Which problem does the Lightning Network mainly avoid? (A) High gas fees (B) Network congestion (C) Double spending on Layer 2 (D) Token inflation 27. : Which companies have actively developed the Lightning Network? (A) Blockstream and Lightning Labs (B) Google and Facebook (C) Binance and Coinbase (D) Microsoft and Amazon 28. : Lightning Network transactions are recorded on-chain ____. (A) After each micro-payment (B) Only when the channel is closed (C) Instantly after confirmation (D) Every 10 minutes 29. : The Lightning Network can be seen as a network of ____. (A) Sidechains (B) Off-chain payment channels (C) Mining nodes (D) Consensus committees 30. : Which is NOT a challenge for Lightning Network adoption? (A) Liquidity issues (B) Routing complexity (C) Limited wallet support (D) Proof of Work mining 31. : What happens if one party tries to cheat in a Lightning channel? (A) The network ignores it (B) The honest party can claim all funds via penalty mechanism (C) The channel closes automatically without penalty (D) Funds are lost permanently 32. : Lightning Network enables ____. (A) Atomic swaps (B) Token inflation (C) Mining centralization (D) Proof of Stake validation 33. : Which Lightning implementation is developed by Blockstream? (A) c-lightning (Core Lightning) (B) LND (C) Eclair (D) Phoenix 34. : Lightning payments are routed through ____. (A) Mining nodes (B) Peer-to-peer channels (C) Validators (D) Shards 35. : Which is an example of a Lightning-ready application? (A) Strike (B) Uniswap (C) OpenSea (D) PancakeSwap 36. : The Lightning Network helps Bitcoin compete with ____. (A) Traditional payment systems like Visa (B) Ethereum smart contracts (C) Centralized exchanges (D) Mining pools 37. : Which of the following is NOT a Lightning-enabled wallet? (A) BlueWallet (B) Phoenix (C) Muun (D) MetaMask 38. : In Lightning, routing payments involves ____. (A) Finding multi-hop paths between nodes (B) Mining new blocks (C) Sharding consensus (D) Creating Layer 1 forks 39. : A closed channel’s balance is ____. (A) Shared based on trust (B) Recorded on the Bitcoin blockchain (C) Burned (D) Sent to Lightning Labs 40. : Lightning payments are considered ____. (A) Irreversible and fast (B) Reversible (C) Slow but cheap (D) Only for miners 41. : What is a major limitation of Lightning Network routing? (A) Requires online availability of nodes (B) Needs Proof of Stake (C) Requires mining rewards (D) Uses excessive gas 42. : Which blockchains other than Bitcoin have experimented with Lightning-like tech? (A) Litecoin (B) Ripple (C) Ethereum (D) Solana 43. : Lightning payments are denominated in ____. (A) Ether (B) Bitcoin (satoshis) (C) Dollars (D) Tokens only 44. : Which ensures trustless interaction in Lightning channels? (A) HTLCs (B) Trusted third parties (C) Central banks (D) Validators 45. : The Lightning Network is often compared to ____. (A) Internet TCP/IP layer (B) Proof of Stake protocols (C) Sidechains only (D) Mining pools 46. : Which company is behind the LND Lightning implementation? (A) Lightning Labs (B) Blockstream (C) Square (D) Binance 47. : Lightning Network capacity refers to ____. (A) Total BTC locked in payment channels (B) Mining hash rate (C) Block size limit (D) Number of transactions confirmed on-chain 48. : Which of these is a drawback for Lightning users? (A) Need to remain online to monitor channels (B) Expensive gas fees (C) Lack of cryptographic security (D) No use for micro-payments 49. : Which payment type is ideal for the Lightning Network? (A) Large-value settlements (B) Daily micro-transactions like coffee purchases (C) On-chain mining rewards (D) Token swaps on Ethereum 50. : The Lightning Network enhances Bitcoin by ____. (A) Improving scalability and transaction efficiency (B) Replacing Proof of Work (C) Acting as a new Layer 1 (D) Eliminating decentralization