IT and Technology IoT & Emerging Technologies

Question 1

Which communication protocol is most commonly used for lightweight IoT messaging?

Accepted Answer

MQTT

Answer

HTTP/1.1

Answer

FTP

Answer

SMTP

Question 2

What is edge computing in the context of IoT?

Accepted Answer

Processing data closer to the device rather than sending everything to the cloud

Answer

Storing all IoT data in a central cloud data center

Answer

Connecting IoT devices via Bluetooth only

Answer

Using edge routers to block IoT traffic from the internet

Question 3

Which security concern is most prevalent in IoT deployments?

Accepted Answer

Use of default or hardcoded credentials

Answer

Excessive RAM usage

Answer

Too many software updates

Answer

High CPU utilization

Question 4

What does a digital twin represent in IoT?

Accepted Answer

A virtual replica of a physical device or system for simulation

Answer

A backup cloud server

Answer

A secondary IoT sensor for redundancy

Answer

An encrypted copy of device firmware

Question 5

Which wireless technology is designed for long-range, low-power IoT communication?

Accepted Answer

LoRaWAN

Answer

Wi-Fi 6

Answer

Bluetooth Classic

Answer

NFC

Question 6

In IoT security, what is firmware over-the-air (FOTA) update?

Accepted Answer

Wirelessly delivering firmware updates to IoT devices remotely

Answer

Physically replacing device hardware in the field

Answer

Sending firmware files via email attachment

Answer

Updating cloud dashboards without device changes