Internet of things | General Questions & Answers
Q. What is the Internet Of Things (IoT)?
Ans- The Internet of things describes the network of physical objects called as “things” that are embedded with sensors, software, and other technologies for the purpose of connecting and exchanging data with other devices and systems over the Internet.
Q. List mostly used sensors types in IoT
Ans- • Pressure sensor
• Smoke sensor
• Motion detection sensors
• Gas sensor
• Proximity sensor
• IR sensors
• Temperature sensors
Q. Characteristics of IoT
Ans- • Dynamic Global network & Self-Adapting
• Self Configuring
• Interoperable Communication Protocols
• Unique Identity
• Integrated into Information Network
• Self Configuring
• Interoperable Communication Protocols
• Unique Identity
• Integrated into Information Network
Q. What are GPIO Pins?
Ans- GPIO stands for General Purpose Input and Output pins. It is capable of reading and writing data from development boards like Raspberry and Arduino to other Sensors, motors, actuators, and etc.
Q. What is M2M?
Q. List down the IoT Protocol layers?
Ans- • Link Layer
• Network/Internet Layer
• Transport Layer
• Application Layer
Q. Define REST and it's Constraints?
• Client-server
• Stateless
• Cacheable
• Layered system
• Uniform interface
• Code on demand
Ans- Machine-to-Machine (M2M) refers to networking of machines (or devices) for the purpose of remote monitoring and control and data exchange.
Q. List down the IoT Protocol layers?
Ans- • Link Layer
• Network/Internet Layer
• Transport Layer
• Application Layer
Q. Define REST and it's Constraints?
Ans- Representational state transfer (REST) is a set of architectural principles by which you can design Web services the Web APIs that focus on system’s resources and how resource states are addressed and transferred.
The rest architectural constraint are as follows:• Client-server
• Stateless
• Cacheable
• Layered system
• Uniform interface
• Code on demand
Create motion images in Photoshop | Part-5 | using Cloud Effect
Q. Define MQTT?
Ans- Message Queue Telemetry Transport (MQTT) One of the most preferred protocols for IoT devices, MQTT collects data from various electronic devices and supports remote device monitoring. It is a subscribe/publish protocol that runs over Transmission Control Protocol (TCP), which means it supports event-driven message exchange through wireless networks. MQTT is mainly used in devices which are economical and requires less power and memory. For instance, fire detectors, car sensors, smart watches, and apps for text-based messaging.
Ans- A low-power wide-area network (LPWAN) or low-power wide-area (LPWA) network or low-power network (LPN) is a type of wireless telecommunication wide area network designed to allow long-range communications at a low bit rate among things (connected objects), such as sensors operated on a battery.
Q. Define NBIoT?
Ans- NB-IoT (Narrowband-IoT) is a narrowband radio technology for M2M and Internet of Things (IoT) devices and applications requiring wireless transmission over a more extended range at a relatively low cost and using little power for long battery lives.
Q. List down the IoT design methodology steps
Ans- Step 1: Purpose & Requirements Specification
Step 2: Process Specification
Step 3: Domain Model Specification
Step 4: Information Model Specification
Step 5: Service Specifications
Step 6: IoT Level Specification
Step 7: Functional View Specification
Step 8: Operational View Specification
Step 9: Device & Component Integration
Step 10: Application Development
Q. What is SQL?
Ans- SQL stands for Structured Query Language. It is a language for viewing or changing (update, insert or append or delete) databases. It is a language for data querying, updating, inserting, appending and deleting the databases.
Q. What is NOSQL?
Ans- NOSQL stands for No-SQL or Not Only SQL. NoSQL is a type of database, that does not require a fixed schema. It avoids joins, and is easy to scale. The major purpose of using a NoSQL database is for distributed data stores with humongous data storage needs. NoSQL is used for Big data and real-time web apps.
Q. Define Business Intelligence?
Ans- Business Intelligence is a process which enables a business service to extract new facts and knowledge and then undertake better decisions.
Q. What is Cloud Computing?
Answer: Cloud Computing is a technique for delivering services within which resources are retrieved from the net through web based tools and applications. Or
Cloud Computing is a network of remote servers hosted on the internet for storing and retrieving data.
Q. What are the Cloud service models?
Ans- • SaaS means Software as a Service
• PaaS means Platform as a Service
• IaaS means Infrastructure as a Service
• DaaS means Data as a Service
Q. What are the cloud deployment models?
Ans- • Public cloud
• IaaS means Infrastructure as a Service
• DaaS means Data as a Service
Q. What are the cloud deployment models?
Ans- • Public cloud
• Private cloud
• Community cloud
• Hybrid cloud
Q. What is RFID?
Ans- RFID is a technology which uses a radio frequency to communicate between the tag attached on a device and RFID reader that identifies the unique RFID tag which can be used for identifying and tracking the implemented object.
Q. What is Bluetooth?
Answer: Bluetooth is a high-speed, low-power microwave wireless link technology, designed to connect phones, laptops and other portable equipment together.
• Community cloud
• Hybrid cloud
Q. What is RFID?
Ans- RFID is a technology which uses a radio frequency to communicate between the tag attached on a device and RFID reader that identifies the unique RFID tag which can be used for identifying and tracking the implemented object.
Q. What is Bluetooth?
Answer: Bluetooth is a high-speed, low-power microwave wireless link technology, designed to connect phones, laptops and other portable equipment together.
Q. Explain Raspberry Pi
Ans- Raspberry Pi is a computer which is capable of doing all the operations like a conventional computer. It has other features such as onboard WiFi, GPIO pins, and Bluetooth in order to communicate with external things.
Q. State Raspberry Pi Interfaces?
• Serial- The serial interface on Raspberry Pi has receive (Rx) and transmit (Tx) pins for communication with serial peripherals.
• SPI- Serial Peripheral Interface (SPI) is a synchronous serial data protocol used for communicating with one or more peripheral devices.
• I2C- The I2C interface pins on Raspberry Pi allow you to connect hardware modules. I2C interface allows synchronous data transfer with just two pins - SDA (data line) and SCL (clock line).
Full Form
- IoT- Internet of things
- M2M- Machine-to-Machine
- NOSQL- Not Only SQL
- LoWPAN- Low power Wireless Personal Area Network
- TCP- Transmission Control Protocol
- NFV- Network Function Virtualization
- SDN- Software-Defined Networking
- REST- Representational State Transfer
- RFID- Radio Frequency Identification
- WSN- Wireless Sensor Network
- CoAP- Constrained Application Protocol
- MQTT- Message Queue Telemetry Transport
- AMQP- Advanced Message Queuing Protocol
- HTTP- HyperText Transfer Protocol
- SCADA- Supervisory Control and Data Acquisition
Also Read:
No comments: