Cross-Chain Communication and Interoperability Protocols BBLC Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   Which interoperability protocol type uses a central blockchain to verify and finalize transactions from multiple connected chains?

   • ANotary scheme
   • BHash-locking
   • CSidechain
   • DRelay chain
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A multinational supply-chain consortium runs a Hyperledger Fabric network for procurement and a separate Quorum network for trade finance. They want to share shipment status events from Fabric to Quorum so that trade-finance contracts can trigger payments automatically. The compliance team requires that no third party can censor or alter the event data in transit. Which bridge architecture best meets this requirement?

   • AA sidechain that periodically snapshots the entire Fabric ledger state into Quorum
   • BA centralized notary bridge run by a single trusted logistics provider that signs all cross-chain events
   • CA hash-locking mechanism that exchanges shipment tokens atomically between the two networks
   • DA federated bridge operated by the consortium members, with multi-signature validation and event verification on both chains
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which of the following is a common trust assumption in a blockchain bridge?

   • AThe bridge operators or validators will act honestly and not steal locked funds
   • BThe underlying blockchains will merge into one network
   • CThe bridge will never require gas fees
   • DThe bridge will have unlimited transaction throughput
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   How can cross-chain interoperability impact an enterprise's blockchain strategy?

   • AIt eliminates the need for the enterprise to comply with data privacy regulations
   • BIt guarantees that all cross-chain transactions are free of charge
   • CIt forces the enterprise to use a single blockchain provider for all operations
   • DIt allows the enterprise to connect with partners and customers on different blockchain networks
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A company wants to transfer a tokenized asset from Ethereum to a private Quorum network. The company wants the transfer to be reversible if a dispute arises, and they want a record of the transfer on both networks. Which bridge mechanism should they use?

   • AA relay chain that processes the transfer on a shared network
   • BA notary bridge that locks the asset on Ethereum and mints a representation on Quorum
   • CAn atomic swap that exchanges the asset for a native Quorum token
   • DA sidechain that replicates the Ethereum state on Quorum
   Reveal Solution Discussion Select an answer first