ICT - Information Communication Technology Mobile and IoT Devices Questions and Answers

Question 1

A user wants to make a contactless payment at a point-of-sale terminal using their smartphone. Which wireless technology enables this short-range communication by bringing the phone close to the reader?

Accepted Answer

NFC (Near Field Communication)

Answer

NFC (Near Field Communication) is a short-range wireless technology designed for communication between two devices within a few centimeters of each other. This makes it ideal and secure for 'tap-to-pay' mobile payment systems.

Question 2

In an Internet of Things (IoT) ecosystem, which component is responsible for collecting data from the physical environment, such as temperature, motion, or light levels?

Accepted Answer

Sensor

Answer

A sensor's primary role in an IoT system is to detect and measure physical properties or changes in the environment and convert them into a digital signal that can be processed.

Question 3

A smartphone can automatically switch its display orientation from portrait to landscape when turned sideways. Which internal component is responsible for detecting this change in the device's tilt and orientation?

Accepted Answer

Accelerometer

Answer

An accelerometer is a sensor that detects acceleration, which includes the constant force of gravity. By measuring the direction of gravitational pull, it can determine the device's physical orientation and signal the operating system to rotate the screen.

Question 4

Which of the following is a key characteristic of the Android operating system that distinguishes it from iOS in terms of software distribution?

Accepted Answer

It allows users to install applications from third-party sources, a process known as 'sideloading'.

Answer

Android's open nature allows users to enable 'sideloading,' which is the installation of application APK files from sources other than the official Google Play Store. iOS, by default, restricts app installations to its official App Store for security and control.

Question 5

An IT department needs to enforce security policies, deploy applications, and remotely wipe lost or stolen company-owned smartphones. Which type of system provides this centralized control over a fleet of smartphones and tablets?

Accepted Answer

Mobile Device Management (MDM)

Answer

Mobile Device Management (MDM) is software used by IT departments to monitor, manage, and secure mobile devices such as smartphones and tablets. It allows administrators to enforce security policies, distribute applications, and perform remote actions like locking or wiping a device.

ICT - Information Communication Technology Practice Test

ICT - Information Communication Technology Practice Test

ICT - Information Communication Technology Mobile and IoT Devices Questions and Answers