IoT Unit-1

Which of the following best defines the Internet of Things (IoT)?

• A concept where all computers must be wirelessly connected to each other

• A network of physical devices embedded with sensors, software, and connectivity

• A system where only smartphones and laptops are connected

• A platform exclusive to industrial automation

In the basic three-layer IoT architecture, which layer handles the communication between devices and the network?

• Perception (Device) Layer

• Network Layer

• Application Layer

• Database Layer

Which protocol is widely used for communication in IoT devices?

• HTTP

• MQTT

• FTP

• SMTP

What is a significant challenge in the implementation of IoT systems?

• Data privacy and security concerns

• High cost of devices

• Limited device functionality

• Lack of internet connectivity

Which of the following statements best describes M2M (Machine-to-Machine) communication?

• Communication that always requires human interaction

• Point-to-point data exchange between machines without human intervention

• A protocol limited to Wi-Fi only

• A method of communication that excludes cloud connectivity

Which of these is an example of actuation in an IoT system?

• Measuring temperature using a sensor

• Storing sensor data in the cloud

• Turning on a motor based on sensor feedback

• Sending data through a router

Which layer is used for wireless connection in IoT devices?

• Application layer

• Network layer

• Data link layer

• Transport layer

Which of the following is not related to Arduino IDE IoT software?

• Serial monitor

• Verify

• Terminate

• Upload

What is the full form of the LPWAN?

• 1. Low Protocol Wide Area Network

• 1. Long Protocol Wide Area Network

• 1. Long Power Wide Area Network

• 1. Low Power Wide Area Network

An IoT network is a collection of ______ devices.

• 1. Signal

• 1. Machine to Machine

• 1. Interconnected

• 1. Network to Network