How can a variation in screen resolution (e.g., from 720p to 1440p) affect mobile application behavior?

It determines whether the app can access the device's sensors.

It has no effect on application behavior because the OS automatically scales everything.

It only affects battery life, not the visual appearance of the app.

It can cause images and text to appear blurry or too small if the app does not handle density scaling.

A cross-platform mobile app uses push notifications. During testing on an Android device, the team notices that notifications sometimes do not appear until the user manually opens the app. The same app on an iOS device delivers notifications reliably. What is the most likely platform-specific reason for this behavior?

The app is not using the correct Android push notification service (FCM) and is instead using APNs

Android's Doze mode and App Standby can defer background work, including push notification processing, to preserve battery life

The iOS device has a more powerful processor that processes notifications faster

Android's notification system is fundamentally broken compared to iOS

Which form factor characteristic is most likely to require special testing for accidental touches and palm rejection?

A wearable with a tiny touchscreen

A smartphone with a very small screen (e.g., 4 inches)

A tablet with a large touchscreen and bezel-less design

A foldable phone in its closed state

Why does device fragmentation increase the importance of testing on a representative sample of devices?

Because apps may behave differently across various hardware and software configurations.

Because fragmentation only affects the visual appearance, not functionality.

Because all devices have the same performance capabilities.

Because testing on one device is sufficient to ensure compatibility.

What is device fragmentation in the context of mobile application testing?

The process of breaking an app into smaller modules for testing

The existence of many different device models, OS versions, and screen sizes in the market

The tendency of mobile devices to lose network connectivity

The inability of a device to run multiple apps simultaneously

Certified Tester Mobile Application Testing

Domain 1Objective 3

Mobile Device Types CT-MAT Practice Questions (Page 4)

Part of the Mobile World - Business and Technology Drivers domain, which makes up ~40% of our current practice bank. ISTQB does not publish an official question count, but from its 60-minute exam (~25–40 total, ~10–16 in this domain), expect 1–2 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

6concepts

Questions 16–20

16foundation · easy
How can a variation in screen resolution (e.g., from 720p to 1440p) affect mobile application behavior?
Select an answer first
17application · medium
A cross-platform mobile app uses push notifications. During testing on an Android device, the team notices that notifications sometimes do not appear until the user manually opens the app. The same app on an iOS device delivers notifications reliably. What is the most likely platform-specific reason for this behavior?
Select an answer first
18foundation · easy
Which form factor characteristic is most likely to require special testing for accidental touches and palm rejection?
Select an answer first
19foundation · easy
Why does device fragmentation increase the importance of testing on a representative sample of devices?
Select an answer first
20foundation · easy
What is device fragmentation in the context of mobile application testing?
Select an answer first

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