Building User-Friendly dApp Interfaces BDC Practice Questions (Page 10)

Questions 46–50

1. 46application · medium

   A dApp team is integrating WalletConnect to allow users to connect from mobile wallets. They notice that the connection works on desktop but fails on mobile browsers. What is the most likely cause?

   • AThe user's mobile wallet is not funded.
   • BThe mobile browser does not support the WalletConnect protocol.
   • CThe dApp is not using HTTPS, which blocks WalletConnect on mobile.
   • DThe dApp is using a deep link that is not properly configured for the mobile wallet app.
   Reveal Solution Discussion Select an answer first
2. 47foundation · easy

   Which of the following best describes the core goal of applying user-centered design principles to a decentralized application (dApp)?

   • ATo prioritize the needs and behaviors of end users throughout the design process, making the interface intuitive and accessible.
   • BTo ensure the interface uses the latest JavaScript frameworks regardless of user familiarity.
   • CTo maximize the number of blockchain transactions processed by the interface to improve network throughput.
   • DTo make the interface visually appealing to attract new users, even if it complicates navigation.
   Reveal Solution Discussion Select an answer first
4. 48application · medium

   A dApp for managing digital identities is being audited for accessibility. The audit finds that color alone is used to indicate transaction success (green) and failure (red), and that all interactive elements are only operable by mouse. Which change best improves accessibility for users with visual and motor impairments?

   • AProvide a tooltip that explains the colors when the user hovers over the indicator.
   • BAdd a settings option that lets users choose their own color scheme.
   • CIncrease the contrast of the green and red colors so they are more distinguishable.
   • DAdd text labels and icons to the color indicators, and ensure all functions can be operated via keyboard.
   Reveal Solution Discussion Select an answer first
5. 49application · medium

   A dApp team has a limited budget and wants to conduct usability testing to improve their onboarding flow. They have access to a small group of internal employees who are familiar with blockchain. What is the best approach?

   • AUse an automated usability testing tool to simulate user behavior.
   • BSkip usability testing and rely on the team's design experience.
   • CTest with the internal employees because they are readily available and can provide quick feedback.
   • DRecruit a small number of target users (e.g., 5) who match the target persona, even if it costs more.
   Reveal Solution Discussion Select an answer first
6. 50application · medium

   A dApp for a decentralized freelancing platform requires users to connect a wallet and sign a message to log in. New users are confused about why they need a wallet and what signing means. Which design change best applies user-centered design principles?

   • ARemove the wallet requirement and allow users to log in with email and password.
   • BPlace the 'Connect Wallet' button in a less prominent location to reduce its importance.
   • CAutomatically connect to the user's wallet without asking for permission.
   • DAdd a 'Why connect a wallet?' tooltip and a one-time educational overlay that explains signing in plain language before the login button.
   Reveal Solution Discussion Select an answer first