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

Bluetooth

Answer

Wi-Fi Direct

Answer

Infrared (IR)

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

Actuator

Answer

Gateway

Answer

Controller

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

GPS (Global Positioning System)

Answer

Magnetometer

Answer

Proximity Sensor

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

It is a completely closed-source operating system.

Answer

It exclusively uses one official, curated app store for all software.

Answer

It does not support widgets on the home screen.

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

Customer Relationship Management (CRM)

Answer

Intrusion Detection System (IDS)

Answer

Enterprise Resource Planning (ERP)

Question 6

A smart home requires numerous low-power devices like light bulbs, door locks, and thermostats to be connected in a single, reliable mesh network. Which of the following low-power, short-range wireless protocols is specifically designed for this type of home automation network?

Accepted Answer

Zigbee

Answer

5G Cellular

Answer

Wi-Fi (802.11ax)

Answer

LoRaWAN