NFT ERC-721 vs. ERC-1155 Standards 3

Question 1

How does ERC-1155 typically handle metadata URIs to support many tokens?

Accepted Answer

A single URI template with an {id} substitution placeholder

Answer

ERC-1155 uses a URI template where {id} is replaced with the hex token ID, avoiding per-token storage.

Question 2

In ERC-721, which event is emitted when ownership of a token changes?

Accepted Answer

Transfer

Answer

ERC-721 emits a Transfer event with from, to, and tokenId on ownership change.

Question 3

Which event does ERC-1155 emit for a single token transfer?

Accepted Answer

TransferSingle

Answer

ERC-1155 emits TransferSingle for one token type and TransferBatch for many.

Question 4

A game wants gold coins, potions, and unique swords in one contract. Which standard fits best?

Accepted Answer

ERC-1155

Answer

ERC-1155 handles fungible coins/potions and unique swords together in a single contract.

Question 5

What does ERC-1155's balanceOfBatch allow callers to do?

Accepted Answer

Query multiple owner/ID balance pairs in one call

Answer

balanceOfBatch returns balances for arrays of owners and token IDs in a single query.

NFT Development Practice Test