Free NFT Art NFT Marketplaces and Trading Questions and Answers — Questions and Answers
Question 1: A collector wants to find the absolute lowest price for a specific NFT from a well-known collection. Instead of searching multiple marketplaces individually, they use a single website that displays all available listings for that NFT from OpenSea, LooksRare, and X2Y2 simultaneously. What type of platform is the collector using?
- A curated marketplace
- A decentralized exchange (DEX)
- An NFT marketplace aggregator (Correct answer)
- A launchpad
Correct answer: An NFT marketplace aggregator
An NFT marketplace aggregator is a platform that pulls data and listings from various individual marketplaces into a single, unified interface. This allows users to easily compare prices, traits, and availability across the entire market without having to visit each site separately.
Question 2: A user is about to place a bid on an NFT in a timed auction on an Ethereum-based marketplace. The platform requires the user to convert their ETH into a different token to place the bid. This ensures the smart contract can automatically transfer the funds if the bid is successful without requiring a second transaction from the bidder. What is this token called?
- Stable Ether (sETH)
- Wrapped Ether (WETH) (Correct answer)
- Gas Ether (gETH)
- Auction Ether (aETH)
Correct answer: Wrapped Ether (WETH)
Wrapped Ether (WETH) is an ERC-20 token that represents Ether on a 1:1 basis. Native ETH was created before the ERC-20 standard and is not directly compatible with certain smart contracts that require token pre-approval. WETH is used in auctions and bidding systems because users can approve the auction contract to spend their WETH, allowing for seamless, automated transfers upon a successful bid.
Question 3: When an NFT is sold on a secondary marketplace, which of the following is NOT typically deducted from the final sale price before the funds are sent to the seller?
- The gas fee for the original minting of the NFT (Correct answer)
- The marketplace's service or platform fee
- The creator royalty fee
- A wallet or protocol-specific transaction fee
Correct answer: The gas fee for the original minting of the NFT
The gas fee for the initial minting was a one-time cost paid by the person who first created and registered the NFT on the blockchain. This cost is not part of the transaction economics of a secondary sale. Secondary sales typically involve deductions for the marketplace's service fee and the creator's royalty percentage.
Question 4: An NFT trader is interacting with a new, unfamiliar website that promises high returns. Their crypto wallet prompts them with a signature request for a 'SetApprovalForAll' transaction. What is the primary danger of approving this specific request?
- It gives the contract permission to drain all the ETH from the user's wallet.
- It only allows the website to see the user's transaction history.
- It grants the contract permission to transfer all NFTs of that specific contract type from the user's wallet. (Correct answer)
- It will cause the user's wallet to be permanently disconnected from all other marketplaces.
Correct answer: It grants the contract permission to transfer all NFTs of that specific contract type from the user's wallet.
The 'SetApprovalForAll' function is a powerful command within NFT standards (like ERC-721 and ERC-1155) that grants another address (the operator) permission to transfer ALL of a user's tokens from that specific smart contract. Scammers trick users into signing this transaction for a malicious contract, which then allows them to steal every NFT from that collection held in the user's wallet.
Question 5: An artist is known for their highly detailed, fine art photography and wants to sell their work as exclusive 1-of-1 NFTs. They want to list on a platform that values quality over quantity, has a strong community of serious collectors, and requires an application or invitation to sell. Which type of marketplace best fits their needs?
- An open marketplace
- An aggregator marketplace
- A curated marketplace (Correct answer)
- A fungible token exchange
Correct answer: A curated marketplace
A curated marketplace is selective about which artists and collections it lists, often requiring a vetting or application process. This focus on quality and exclusivity builds a strong brand and attracts serious collectors, making it ideal for fine artists who want their work presented alongside other high-caliber creations.
Question 6: Which Ethereum Improvement Proposal (EIP) introduced a standardized way for NFT smart contracts to signal royalty information, making it easier for marketplaces to honor creator royalties on secondary sales?
- EIP-721
- EIP-1155
- EIP-1559
- EIP-2981 (Correct answer)
Correct answer: EIP-2981
EIP-2981 is the NFT Royalty Standard. It provides a universal interface for smart contracts to communicate how royalty payments should be calculated for a given sale price. While EIP-721 and EIP-1155 are the primary standards for creating NFTs, they do not inherently include a standardized royalty mechanism. EIP-2981 was created to solve this problem.
Free NFT Art NFT Marketplaces and Trading Questions and Answers
A collector wants to find the absolute lowest price for a specific NFT from a well-known collection.
Instead of searching multiple marketplaces individually, they use a single website that displays all available listings for that NFT from OpenSea, LooksRare, and X2Y2 simultaneously.
What type of platform is the collector using?