Question 1

What is DApp architecture?

Accepted Answer

DApp architecture is the technical structure that connects a decentralized application’s user interface, smart contracts, blockchain network, wallets, data services, and optional off-chain components. A well-designed architecture balances decentralization, security, scalability, usability, and cost .

Question 2

What are the main components of a decentralized application?

Accepted Answer

Most DApps include a front-end interface, wallet integration, smart contracts, blockchain infrastructure, RPC connections, and blockchain data indexing. Depending on the use case, they may also use decentralized storage, oracles, relayers, APIs, databases, and off-chain computation.

Question 3

How can developers improve DApp scalability?

Accepted Answer

Common approaches include using Layer 2 networks, rollups, sidechains, appchains, transaction batching, optimized smart contracts, caching, efficient indexing, and asynchronous processing. The best solution depends on the DApp’s transaction volume, security requirements, data model, and user expectations.

Question 4

Why is UX design important for DApps?

Accepted Answer

Blockchain terminology, wallet management, gas fees, network selection, and transaction signing can create friction. Effective Web3 UX design simplifies these processes, communicates risks clearly, and gives users confidence while preserving control over their assets and identity.

Question 5

What security practices should every DApp follow?

Accepted Answer

Teams should use threat modeling, secure coding standards, comprehensive testing, independent smart contract audits, access control reviews, monitoring, incident response plans, and careful key management. Developers should also consider oracle risks, bridge vulnerabilities, phishing attacks, privacy concerns, and the consequences of contract upgrades.

DApp Architecture & Design