Practice Test GeeksNFT Development Practice Test
← All NFT Flashcard Decks

ERC-721 vs. ERC-1155 Standards Flashcards

7 cards from real NFT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 ERC-721 vs. ERC-1155 Standards flashcards as text

  1. Which royalty standard is commonly added on top of both ERC-721 and ERC-1155?

    Answer: ERC-2981

    ERC-2981 provides a standard royaltyInfo interface usable with both NFT standards.

  2. In ERC-1155 safe transfers, what extra parameter is passed compared to ERC-721's basic transfer?

    Answer: An amount (value) for the token ID

    ERC-1155 transfers include an amount because IDs can be fungible with quantities.

  3. What is a practical gas advantage of ERC-1155 when airdropping many items to many users?

    Answer: Batch transfers reduce overhead versus many individual ERC-721 transfers

    Batching multiple IDs and amounts in one call cuts repeated per-transaction overhead.

  4. Which statement about token uniqueness is correct?

    Answer: ERC-721 enforces one owner per token ID, while ERC-1155 IDs can have many holders

    ERC-721 IDs are singular and singly owned; ERC-1155 IDs can be held by many addresses in varying amounts.

  5. When migrating a collection from ERC-721 to ERC-1155, what is a common challenge?

    Answer: Marketplace compatibility and mapping unique tokens to ID/amount semantics

    Differing transfer/approval semantics and marketplace support require careful mapping during migration.

  6. Which standard natively defines a TransferBatch event for multi-ID movements?

    Answer: ERC-1155

    ERC-1155 defines TransferBatch to log transfers of multiple token IDs at once.

  7. For a contract holding both in-game currency and rare unique items efficiently, which is the single best choice?

    Answer: One ERC-1155 contract

    A single ERC-1155 contract handles fungible currency and unique items together efficiently.