Role of DLT in Decentralized Finance (DeFi) BFC Practice Questions (Page 9)

Questions 41–45

1. 41foundation · easy

   How does DLT enable the transfer of digital assets in DeFi?

   • ABy using a network of couriers to physically deliver asset certificates.
   • BBy allowing users to transfer ownership directly through peer-to-peer transactions recorded on the ledger.
   • CBy storing the asset itself on the blockchain, so it can be physically moved.
   • DBy requiring a central authority to approve each transfer and update the ledger.
   Reveal Solution Discussion Select an answer first
2. 42expert · hard

   A DeFi developer is building a yield aggregator that automatically moves funds between multiple lending protocols to maximize returns. The aggregator relies on composability to interact with different protocols. However, a vulnerability in one of the underlying protocols is discovered. What is the most significant risk to the aggregator?

   • AThe vulnerability in the underlying protocol could be exploited, potentially affecting the aggregator's funds and users due to the interconnected nature of composability
   • BThe vulnerability will cause the aggregator to lose its governance token, but user funds remain safe
   • CThe aggregator will be forced to migrate to a different blockchain to avoid the vulnerability
   • DThe aggregator's smart contract will automatically be updated to fix the vulnerability in the underlying protocol
   Reveal Solution Discussion Select an answer first
4. 43application · medium

   A DeFi developer wants to create a dashboard that shows a user's total balance across multiple DeFi protocols on the same blockchain. The dashboard needs to read data from various smart contracts. Which DLT feature makes this possible?

   • AComposability, which allows the dashboard to query and integrate data from multiple smart contracts
   • BTokenization, which allows the dashboard to represent all assets as tokens
   • CImmutability, which ensures that the data from the protocols cannot be changed
   • DConsensus mechanisms, which ensure that the data from the protocols is accurate
   Reveal Solution Discussion Select an answer first
5. 44foundation · easy

   Which challenge is associated with the scalability of DLT in DeFi?

   • AThe lack of any consensus mechanism, making the network slow.
   • BThe inability to create new tokens.
   • CThe requirement for all users to run a full node to participate.
   • DThe limited transaction throughput of some blockchains, leading to high fees during peak demand.
   Reveal Solution Discussion Select an answer first
6. 45application · medium

   A DeFi lending protocol has been audited, but a bug in a smart contract is discovered after deployment. The team wants to fix the bug, but the contract is immutable. Which approach is most appropriate in this situation?

   • AAccept the bug as a permanent risk and implement off-chain monitoring to detect exploits
   • BDeploy a new version of the contract and migrate users and funds to it, while ensuring the old contract is paused or deprecated
   • CRely on the consensus mechanism to automatically revert the buggy transactions
   • DUse a governance vote to instruct the blockchain network to alter the immutable contract
   Reveal Solution Discussion Select an answer first