App Development Fundamentals: 17 MCQs with answers

B · The full process from idea to release and maintenance

App development covers planning, design, coding, testing, release, and maintenance — not just coding.

D · Native app

Native apps offer the best performance and device access, which matters for camera-heavy features.

D · Web app

Web apps run in a browser, so users do not install them — though they have limited hardware access.

D · The back end

The back end (server) handles data, accounts, and logic the user does not see.

D · It lets the front end and back end communicate

An API defines how the front end requests data and how the back end returns it.

A · True

Native apps are built separately for each platform, while cross-platform apps use one codebase to target multiple platforms.

B · A prototype

A prototype proves an idea quickly; it may have fake data, rough screens, and no security.

A · Faster shipping to multiple app stores from one codebase

Cross-platform apps use one codebase to target multiple platforms, speeding up shipping to multiple stores.

C · Local speed with server data

Caching stores data locally for speed while syncing with the server, combining local speed with server data.

C · App stores review apps for privacy, security, and content rules

App stores review apps for privacy, security, and content rules — a missing privacy policy can block release.

C · Confusing screens and costly rework later

Skipping design leads to confusing screens and rework — designing before coding reduces confusion.

A · It is fast and works offline but is device-specific

Local storage is fast and works offline but is limited and device-specific.

B · Because planning, debugging, testing, and communicating take a large share of time

A large share of time goes to planning, debugging, testing, and communicating — problem-solving and clarity are the real skills.

B · Cross-platform, because one codebase ships to both stores faster

For a simple tool needing fast shipping to both stores, cross-platform's one codebase is the better trade-off; native would require building twice.

D · A warehouse inventory scanner app

Internal tools like inventory scanners and attendance apps use the same building blocks — screens, data, servers, updates.

A · Versioning updates and testing before pushing them

Versioning helps push updates without breaking existing users, and testing prevents crashes after release.

A · Choose native for optimal performance and hardware access.

The correct option is 'Choose native for optimal performance and hardware access.' Native apps are built specifically for one platform, allowing developers to leverage the full capabilities of the device's hardware, which is crucial for performance-intensive applications like a camera-heavy app.