Smart Contract Applications Across FinTech BFC Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A team is about to deploy a smart contract for an automated insurance payout system. The contract relies on an external weather data feed to trigger payments. Which risk is most directly associated with this dependency?

   • AOracle manipulation or failure could cause incorrect or missed payouts.
   • BThe contract may have a reentrancy vulnerability that allows attackers to drain funds.
   • CThe contract may be unable to interact with legacy insurance systems.
   • DThe contract may be too slow to execute because of network congestion.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   What is a common benefit observed in real-world smart contract implementations in trade finance?

   • AGuaranteed profit for all parties involved
   • BComplete removal of all fraud in international trade
   • CElimination of all paperwork in trade transactions
   • DReduced processing time for letters of credit by automating document checks
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A consortium of insurance companies is evaluating a smart contract solution for parametric crop insurance. The solution automatically pays farmers when rainfall data falls below a threshold. Which factor is most important for the success of this implementation?

   • AThe reliability and impartiality of the rainfall data source used by the oracle.
   • BThe ability of farmers to mine the blockchain to earn tokens.
   • CThe number of smart contracts deployed on the network.
   • DThe speed at which the smart contract can execute on the chosen blockchain.
   Reveal Solution Discussion Select an answer first
5. 14application · medium

   A development team is about to deploy a smart contract for an insurance claims automation product. The contract relies on an external data feed to determine whether a flight was delayed. Before deployment, the team wants to minimize the risk of the contract executing incorrectly due to faulty data. Which action is most effective?

   • AUse multiple independent oracles and require a consensus threshold before the contract accepts the data.
   • BDeploy the contract without a pause mechanism, so it cannot be stopped if a problem occurs.
   • CRely on a single trusted oracle that has been used in other projects.
   • DRemove the oracle dependency and let the contract use a hardcoded flight schedule.
   Reveal Solution Discussion Select an answer first
6. 15expert · hard

   A DeFi yield farming protocol is considering adding a new liquidity pool. The protocol team must choose between two strategies: (1) use a well-audited, battle-tested smart contract template, or (2) build a custom contract with advanced features to attract more users. The team has a limited budget for security audits. Which strategy is more appropriate, considering the trade-offs?

   • ABuild the custom contract but skip the audit to save costs and launch faster.
   • BUse the well-audited template because it reduces the risk of vulnerabilities, which is critical given the limited audit budget.
   • CBuild the custom contract because advanced features will attract more users and generate higher returns.
   • DUse the template but add a backdoor to allow the team to withdraw funds in case of emergency.
   Reveal Solution Discussion Select an answer first