What is the primary purpose of unit testing in native IoT application development?

To check for security vulnerabilities

To test the entire application from the user's perspective

To verify that individual functions or components work correctly

To measure the app's performance under load

A developer is optimizing a native iOS app that processes high-frequency sensor data from an external heart-rate monitor. The app currently uses a timer to read data every 10 milliseconds and updates a graph on the main thread. Users report that the UI stutters. Which change should the developer make first?

Disable the graph and only show numeric values.

Use a hybrid framework to render the graph with web technologies.

Increase the timer frequency to 5 milliseconds to capture more data points.

Move the data processing to a background queue and update the UI on the main thread only when new data is available.

Which practice helps optimize battery life in a native IoT mobile application?

Using high-frequency GPS updates

Keeping the screen on at full brightness

Polling the server every second

Which security practice is specifically important for native IoT applications that store sensitive data on the device?

Storing data in plain text for easy access

Using a simple hardcoded password

Disabling all security features for performance

A company is decommissioning a native Android app that was used to configure legacy IoT sensors. The app contains sensitive credentials stored in SharedPreferences. What should the company do as part of the decommissioning process?

Remove the app from the Play Store and send a notification to users to uninstall it.

Do nothing because the app is no longer supported.

Revoke the API keys used by the app and leave the app in the store.

Release a final update that clears all stored credentials and then remove the app from the store.

EC-CouncilIoT Security Essentials

Domain 3Objective 3

Native Applications ISE Practice Questions (Page 6)

Part of the IoT Advanced Topics domain, which makes up ~13% of our current practice bank. EC-Council does not publish an official question count, but from its 120-minute exam (~50–80 total, ~7–10 in this domain), expect 2–3 from this objective — we provide 46 practice questions to prepare you well beyond it. (estimate)

46questions here

10free pages

8concepts

Questions 26–30

26foundation · easy
What is the primary purpose of unit testing in native IoT application development?
Select an answer first
27application · medium
A developer is optimizing a native iOS app that processes high-frequency sensor data from an external heart-rate monitor. The app currently uses a timer to read data every 10 milliseconds and updates a graph on the main thread. Users report that the UI stutters. Which change should the developer make first?
Select an answer first
28foundation · easy
Which practice helps optimize battery life in a native IoT mobile application?
Select an answer first
29foundation · easy
Which security practice is specifically important for native IoT applications that store sensitive data on the device?
Select an answer first
30application · medium
A company is decommissioning a native Android app that was used to configure legacy IoT sensors. The app contains sensitive credentials stored in SharedPreferences. What should the company do as part of the decommissioning process?
Select an answer first

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