When developing a native application for an embedded IoT device with limited resources, which consideration is most important?

Relying on cloud-based processing for all tasks

Minimizing memory and CPU usage

Using a high-level interpreted language

Maximizing graphical user interface complexity

A team is developing a native Android app that controls a smart thermostat over a local network using a proprietary TCP protocol. The app sometimes fails to connect to the thermostat after the phone's Wi-Fi network changes. Which testing approach would most effectively identify this issue?

Unit-test the protocol parser with sample data.

Run static analysis to check for memory leaks.

Perform manual testing by switching between Wi-Fi networks while the app is running.

Use a network simulator that delays packets to test timeout handling.

A startup is building a native app for a smart pet feeder. The app must work offline, allow users to schedule feeding times, and sync with a cloud service when online. The team is debating whether to use a local database or a cloud-only architecture. Which architecture is the most appropriate?

Use a hybrid web app with local storage to avoid native database development.

Store all data in the cloud and cache only the current schedule in memory.

Use a cloud-only architecture where the app must be online to schedule feedings.

Use a local database (e.g., SQLite) to store schedules and feeding history, with a background sync service to update the cloud when connectivity is available.

EC-CouncilIoT Security Essentials

Domain 3Objective 3

Native Applications ISE Practice Questions (Page 8)

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 36–40

36foundation · easy
Which IoT communication protocol is commonly used by native applications for lightweight publish/subscribe messaging?
Select an answer first
37foundation · easy
When developing a native application for an embedded IoT device with limited resources, which consideration is most important?
Select an answer first
38foundation · easy
In a typical native IoT mobile application architecture, which component is primarily responsible for rendering the user interface and handling user input?
Select an answer first
39application · medium
A team is developing a native Android app that controls a smart thermostat over a local network using a proprietary TCP protocol. The app sometimes fails to connect to the thermostat after the phone's Wi-Fi network changes. Which testing approach would most effectively identify this issue?
Select an answer first
40expert · hard
A startup is building a native app for a smart pet feeder. The app must work offline, allow users to schedule feeding times, and sync with a cloud service when online. The team is debating whether to use a local database or a cloud-only architecture. Which architecture is the most appropriate?
Select an answer first

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Native Applications ISE Practice Questions (Page 8)

Questions 36–40

Which IoT communication protocol is commonly used by native applications for lightweight publish/subscribe messaging?

When developing a native application for an embedded IoT device with limited resources, which consideration is most important?

In a typical native IoT mobile application architecture, which component is primarily responsible for rendering the user interface and handling user input?

A team is developing a native Android app that controls a smart thermostat over a local network using a proprietary TCP protocol. The app sometimes fails to connect to the thermostat after the phone's Wi-Fi network changes. Which testing approach would most effectively identify this issue?

A startup is building a native app for a smart pet feeder. The app must work offline, allow users to schedule feeding times, and sync with a cloud service when online. The team is debating whether to use a local database or a cloud-only architecture. Which architecture is the most appropriate?

Keep studying — IoT Advanced Topics