Concepts on IOT MCQ Quiz - Objective Question with Answer for Concepts on IOT - Download Free PDF

The correct answer is option 1.

Concept:

Statement 1: IoT mobile app development will be needed for a smart home solution to control home environments.

True, IoT home automation is the capacity to operate household appliances using electronically controlled, internet-connected devices. It might involve pre-programming complicated heating and lighting systems, as well as alarms and home security controls, all linked via a central hub and managed remotely via a smartphone app.

Statement 2: IoT in web and mobile app development provide users with remote access to the services.

True, IoT in web and mobile app development is loaded with sensors, so can be easily connected via WiFi or Bluetooth. It provides users with remote access to the services.

Hence the correct answer is Both statements are true.

• The Internet of things (IoT) is a system of interrelated computing devices, mechanical and digital machines provided with unique identifiers (UIDs) and the ability to transfer data over a network without requiring human-to-human or human-to-computer interaction.
• IoT system architecture, consists of devices, the Edge Gateway, and the Cloud.
• The lowest layer is made up of smart objects integrated with sensors.
• The sensors enable the interconnection of the physical and digital worlds allowing real-time information to be collected and processed.
• There are various types of sensors for different purposes. The sensors have the capacity to take measurements such as temperature, air quality, speed, humidity, pressure, flow, movement and electricity etc.

Notes:
No, of layers in IoT architecture might be different based on different Authors

The correct answer is Zigbee

Key Points

• Zigbee:
  • Zigbee is a low-power, short-range wireless communication protocol designed for small devices in IoT applications.
  • It operates on the IEEE 802.15.4 standard and is suitable for applications like home automation, industrial control, and healthcare where low power consumption and reliability are crucial.

Additional Information

• TCP/IP (Transmission Control Protocol/Internet Protocol):
  • TCP/IP is a suite of protocols that form the backbone of the Internet. While it is widely used for communication in traditional networks and the Internet, it is not typically the first choice for wireless sensor networks in IoT due to its higher power consumption and complex nature.
• Modbus:
  • Modbus is a communication protocol commonly used in industrial automation systems. It is often used for connecting sensors and control devices, but it may not be the primary choice for wireless sensor networks in IoT, especially in scenarios where low power and wireless communication are critical.
• BACNet (Building Automation and Control Networks):
  • BACNet is a communication protocol specifically designed for building automation and control systems. It is widely used in the HVAC (Heating, Ventilation, and Air Conditioning) industry. While it plays a crucial role in building automation, it is not typically associated with wireless sensor networks in broader IoT applications.

The correct answer is option 1.

Concept:

Multimedia Internet of Things (IoT)

The Multimedia Internet of Things (IoT) is a set of interfaces, protocols, and multimedia-related information representations that enable improved services and applications in both physical and virtual settings based on human-to-device and device-to-device interaction.

Classification of M-IoT computing. The existing work on multimedia computing can be studied based on compression and encoding, event detection and processing, cloud computing, fog/edge computing, and SDNs for computing.

Explanation:

Client-Server Computing is not related to multimedia. It denotes a relationship between cooperating programs in an application, composed of clients initiating requests for services and servers providing that function or service.

Hence the correct answer is Client-Server Computing.

The correct answer is Zigbee

Key Points

• Zigbee:
  • Zigbee is a low-power, short-range wireless communication protocol designed for small devices in IoT applications.
  • It operates on the IEEE 802.15.4 standard and is suitable for applications like home automation, industrial control, and healthcare where low power consumption and reliability are crucial.

Additional Information

• TCP/IP (Transmission Control Protocol/Internet Protocol):
  • TCP/IP is a suite of protocols that form the backbone of the Internet. While it is widely used for communication in traditional networks and the Internet, it is not typically the first choice for wireless sensor networks in IoT due to its higher power consumption and complex nature.
• Modbus:
  • Modbus is a communication protocol commonly used in industrial automation systems. It is often used for connecting sensors and control devices, but it may not be the primary choice for wireless sensor networks in IoT, especially in scenarios where low power and wireless communication are critical.
• BACNet (Building Automation and Control Networks):
  • BACNet is a communication protocol specifically designed for building automation and control systems. It is widely used in the HVAC (Heating, Ventilation, and Air Conditioning) industry. While it plays a crucial role in building automation, it is not typically associated with wireless sensor networks in broader IoT applications.

Mi-Wi: Mi-Wi has the highest data rate of up to 1 Gbps. This is because Mi-Wi is a proprietary technology that is optimized for high-speed data transmission.

4G: 4G has a data rate of up to 300 Mbps. This is because 4G is a third-generation mobile communication technology that is capable of providing high-speed data connections.

LoRa: LoRa has a data rate of up to 50 kbps. This is because LoRa is a low-power wide-area network (LPWAN) technology that is designed for long-range communication and low-power consumption.

Weightless - W: Weightless - W has a data rate of up to 500 kbps. This is because Weightless - W is a low-power wide-area network (LPWAN) technology that is designed for low-power consumption and long-range communication.

Hence option 1 is correct.

A) Near-field communication B) Blue tooth low energy C) Wi-Fi D) Cellular networks

A) Near-field communication: This technology has very short range, typically up to 4 cm. It is used for very short-range communication between two devices.

B) Bluetooth Low Energy: This technology has a range of up to 100 meters. It is used for short-range communication between two devices.

C) Wi-Fi: This technology has a range of up to 100 meters. It is used for medium-range communication between two or more devices.

D) Cellular Networks: This technology has a range of up to 10 kilometers. It is used for long-range communication between two or more devices.

Ascending order of wireless range: Near-field communication, Bluetooth Low Energy, Wi-Fi, Cellular Networks.

Hence option 2 is correct.

Sensors are devices that measure or detect a physical or chemical property and transmit its information as an electrical signal. They are used in a variety of applications, including industrial automation, environmental monitoring, and medical diagnostics.

Common examples of sensors include thermometers, pressure gauges, motion detectors, and light sensors.

In the context of Internet of Things (IoT) technologies, a network is a system of interconnected devices that can communicate with each other in order to exchange information and data.

These networks can be wired, wireless, or a combination of both. Network technologies such as Wi-Fi, Bluetooth, Z-Wave, and LoRaWAN allow IoT devices to communicate with each other and with the cloud, enabling the exchange of data and remote control.

Augmented intelligence in IOT technologies refers to the use of AI algorithms to improve the performance of connected devices. Augmented intelligence enables machines to analyze data, learn from past experiences and make decisions with minimal or no human intervention.

This can be used to automate mundane tasks, reduce errors and increase efficiency. It also allows for more predictive and proactive maintenance of connected devices, helping to reduce downtime and improve customer service.

Standards are intended to provide a common framework for the development and deployment of the technologies.

Hence Option 2 is correct.

• The most commonly used IOT standards for Medium Access Control (MAC) are IEEE 802.15.4.
• IEEE 802.15.4 is the most commonly used IoT standard for the MAC layer because it provides low-power, low-cost, and low data rate solutions.
• It is optimized for low-cost, low-power devices and networks, which makes it ideal for Internet of Things (IoT) applications such as smart home products, home automation, industrial automation, and medical devices.
• It also supports a variety of topologies, including star, mesh, and cluster tree.
• Additionally, IEEE 802.15.4 is compatible with other IEEE standards, allowing for easy integration into existing networks.

 XMPP is not used as a security protocol because it is an Extensible Messaging and Presence Protocol, which is used for instant messaging and presence information. It is not designed to provide security features like encryption or authentication.

MAC 802.15.4 is a security protocol used for communication between two or more devices using a mesh network. It provides a secure way to exchange data between devices in a mesh network.

6LOWPAN is a security protocol used for low power wireless networks. It provides a secure way to communicate between devices in a low power wireless network.

RPL is a security protocol used for routing between nodes in a network. It provides a secure way to route data between nodes in a network.

Hence option 4 is correct.

The correct answer is "option 2".

CONCEPT: 

IoT, which stands for Internet Of Things, refers to the large number of physical devices that are connected to the internet.

Examples of IoT devices are Smart home security systems, Connected appliances, etc.

Bluetooth is low energy, short-range communication & wireless technology that consumes the least amount of power as compared to other IoT technologies.

Hence, the correct answer is Bluetooth.

The correct answer is IoT is fully safe

Key PointsIoT (Internet of Things) involves connecting various devices and objects to the internet, allowing them to communicate and exchange data. 

• IoT is fully safe:
  • This statement is not entirely true. While IoT offers numerous benefits, including efficiency and convenience, it also introduces security challenges.
  • Connecting devices to the internet expands the potential attack surface, making them susceptible to cyber threats.
  • Security vulnerabilities can arise due to factors such as inadequate encryption, weak authentication mechanisms, and insufficient protection against unauthorized access.

• The Internet of things (IoT) is a system of interrelated computing devices, mechanical and digital machines provided with unique identifiers (UIDs) and the ability to transfer data over a network without requiring human-to-human or human-to-computer interaction.
• Data storage, privacy and security are the major concern in IoT
• Throughput is not one of the concerns in IoT.

• Internet of things devices are remotely controllable.
• Devices in IoT are programmable
• Devices in IoT are automatic, that is, if devices are not doing any task it may turn of automatically. 

The correct answer is option 2.

Concept:

In order to deliver voice services in IoT, it is important to consider the different use cases and voice requirements for various market segments.

According to Strategy Analytics, there are three major forms of voice implementation:

Bi-directional voice:

Bi-directional voice in IoT is common in human-to-human interaction via a human-machine interface (HMI). The Voice can reach both sides of the membrane.

Mono-directional voice:

A number of voice functions in IoT applications will simply require a voice to be transmitted in one direction, or at most the transmission of one audio source to many receiving devices.

Voice recognition:

Voice recognition allows a range of functions to be controlled by means of voice on a number of different device types such as computer operating systems, commercial software for computers, mobile devices (smartphones, tablets), cars, call centers, and internet search engines such as Google.

Hence the correct answer is hybrid-directional voice.