Decentralized Finance (DeFi) Applications and Ecosystem BBLC Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A DeFi protocol is considering using a new oracle solution that provides faster price updates but has a shorter track record. The protocol's risk committee is concerned about oracle manipulation. What is the most prudent way to evaluate the oracle solution?

   • AUse the new oracle only for non-critical functions
   • BCompare the new oracle's price feeds to a single trusted source
   • CImmediately replace the current oracle with the new one to get faster updates
   • DRun a pilot program with limited funds and monitor for anomalies before full deployment
   Reveal Solution Discussion Select an answer first
2. 12expert · hard

   A DeFi lending protocol has experienced a series of small exploits due to reentrancy vulnerabilities in its smart contracts. The team wants to implement a fix, but the protocol is governed by a DAO that requires a 7-day timelock for any contract upgrade. Meanwhile, a large amount of funds remains at risk. What is the best course of action?

   • APause the affected contracts immediately and then initiate the governance upgrade process
   • BUpgrade the contracts immediately without waiting for the timelock
   • CAsk the DAO to vote on an emergency upgrade that bypasses the timelock
   • DDo nothing and wait for the timelock to expire before taking any action
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A small fintech startup wants to offer its users a way to earn interest on stablecoin deposits without relying on a centralized bank. The team plans to integrate with a DeFi protocol that aggregates liquidity from multiple lending markets to automatically route deposits to the best rate. Which type of DeFi component should the startup integrate with?

   • AA yield aggregator that rebalances positions across lending protocols
   • BAn oracle service that supplies price feeds for stablecoin valuations
   • CA decentralized exchange (DEX) that provides an order book for stablecoin pairs
   • DA lending protocol that offers a fixed interest rate for stablecoin loans
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   Which of the following is a core component of the DeFi ecosystem?

   • AGovernment-issued digital currencies (CBDCs) for settlement.
   • BCentralized exchanges that hold user funds.
   • CSmart contracts that define the rules of financial services.
   • DTraditional credit bureaus that assess borrower risk.
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A user wants to earn passive income by providing liquidity to a DeFi automated market maker (AMM) pool. They are concerned about impermanent loss. What is the best way to explain this risk?

   • AThe value of your deposited assets can change relative to holding them, especially if the token price ratio shifts.
   • BThe protocol can be hacked and all funds stolen.
   • CThe user will lose all their principal if the market drops.
   • DThe pool can run out of liquidity and stop trading.
   Reveal Solution Discussion Select an answer first