Core Protocols and Liquidity Mechanisms in DeFi BFC Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A DeFi trader wants to swap 50,000 USDC for ETH on a popular AMM. The ETH/USDC pool has $10 million in total liquidity, and the trader is concerned about receiving a poor execution price. Which action would most directly reduce the trader's price impact?

   • AIncrease the slippage tolerance on the swap to 5%
   • BUse a different wallet that supports hardware signing
   • CWait for the pool's trading volume to decrease
   • DSplit the trade into several smaller swaps over a few minutes
   Reveal Solution Discussion Select an answer first
2. 22expert · hard

   A liquidity provider is choosing between two pools: Pool X has a stablecoin pair with a 0.05% fee and high volume; Pool Y has a volatile token pair with a 0.30% fee and moderate volume. The provider's primary goal is to maximize risk-adjusted returns. Which pool is likely to be the better choice, and what is the key trade-off?

   • APool Y, because higher volatility always leads to higher trading volume
   • BPool Y, because the higher fee compensates for the higher impermanent loss risk, but only if the volume is sufficient to generate meaningful fees
   • CPool X, because stablecoin pairs never experience impermanent loss
   • DPool X, because the high volume guarantees higher total fee income
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A user wants to gain exposure to the price of gold without holding physical gold or a centralized custodian. They are considering a DeFi synthetic asset platform. What is the primary mechanism that enables this synthetic gold token to track the real-world price?

   • AThe protocol uses a constant-product AMM to arbitrage the token's price
   • BA decentralized oracle network supplies the current gold price to the protocol, which mints and redeems the synthetic token accordingly
   • CThe token is backed by a smart contract that holds physical gold in a vault
   • DThe token's supply is algorithmically adjusted based on trading volume
   Reveal Solution Discussion Select an answer first
5. 24expert · hard

   A DeFi lending protocol uses a single centralized oracle to determine collateral prices. An attacker manipulates the oracle by submitting a false low price for a popular collateral asset. The protocol's liquidation engine triggers mass liquidations, and the attacker buys the collateral at artificially low prices. What is the most effective mitigation the protocol should implement?

   • AIncrease the collateralization ratio to 200% for all assets
   • BRely on the protocol's own internal price from the last trade on its AMM
   • CUse a decentralized oracle network that aggregates prices from multiple independent sources
   • DDisable liquidations during periods of high volatility
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   What is the main benefit of using synthetic derivatives in DeFi?

   • AThey are always backed by the actual asset in a custodial vault.
   • BThey eliminate all counterparty risk because they are decentralized.
   • CThey guarantee a fixed return regardless of market conditions.
   • DThey allow users to gain exposure to assets that may be inaccessible or costly to hold directly, such as foreign stocks or commodities.
   Reveal Solution Discussion Select an answer first