O Level Internet of Things Viva Question with Answer

Solution:

Q: What is the default baud rate for serial communication in Arduino?
Arduino में serial संचार के लिए डिफ़ॉल्ट बॉड दर क्या है?

Ans:  9600

Q: What is the difference between int and float in Arduino?

Arduino में इंट और फ्लोट के बीच क्या अंतर है?

Ans:  int is used for integers (whole numbers), and float is used for floating-point numbers (numbers with decimals).

int का उपयोग पूर्णांकों (संपूर्ण संख्याओं) के लिए किया जाता है, और फ़्लोट का उपयोग फ़्लोटिंग-पॉइंट संख्याओं (दशमलव वाली संख्याओं) के लिए किया जाता है।

Q: What software is used to program the Arduino Uno?
Arduino Uno को प्रोग्राम करने के लिए किस सॉफ़्टवेयर का उपयोग किया जाता है?

Ans:  Arduino IDE (Integrated Development Environment).

Q: What language is used to program the Arduino Uno?
Arduino Uno को प्रोग्राम करने के लिए किस भाषा का उपयोग किया जाता है?

Ans: A simplified version of C++.

Q: What is a smart home?

स्मार्ट होम क्या है?

Ans: A home equipped with IoT devices that automate and control lighting, heating, security, and other systems.

IoT उपकरणों से सुसज्जित एक घर जो प्रकाश व्यवस्था, हीटिंग, सुरक्षा और अन्य प्रणालियों को स्वचालित और नियंत्रित करता है।

Q: LCD ka full form

Ans: Liquid Crystal Display.

Q: What are actuators used for?

एक्चुएटर्स का उपयोग किस लिए किया जाता है?

Ans: They are used in various applications like opening valves, moving robotic arms, and adjusting seats.

इनका उपयोग विभिन्न अनुप्रयोगों में किया जाता है जैसे वाल्व खोलना, रोबोटिक भुजाएँ हिलाना और सीटों को समायोजित करना।

Q: IoT में विभिन्न संचार मॉडल क्या हैं?

What are different communication models in iot?

Ans: Request-Response Model

Publisher-Subscriber Model

Push-Pull Model

Exclusive-Pair Model

Q: python किसके द्वारा बनाई गयी ?

Python was created by whom?

Ans: Guido van Rossum

Q: How does a motion sensor work?

Ans: It detects movement in an area.

Q: What is a servo motor?

Ans: A rotary actuator that allows for precise control of angular position, often used in robotics.

Q: What is a sketch in Arduino?

Ans: A program written for Arduino.

Q: What is a light sensor?

Ans: A sensor that detects light levels.

Q: osi मॉडल में कितनी लेयर होती है

how many layers are there in osi model

Ans: 7

Q: TCP/IP मॉडल में कितनी लेयर होती है

How many layers are there in TCP/IP model?

Ans: 4

Q: What is an Arduino Uno?

Ans: A popular microcontroller board used for building electronic projects.

Q: What are the two main functions in an Arduino sketch?

Ans: setup() and loop().

Q: What microcontroller does the Arduino Uno use?

Ans: ATmega328P

Q: How many digital I/O pins does the Arduino Uno have?

Ans: 14 digital I/O pins.

Q: How many of the digital I/O pins on the Arduino Uno can be used as PWM outputs?

Ans: 6 pins (3, 5, 6, 9, 10, 11).

Q: How do you create a comment in an Arduino sketch?

Ans: Single-line comment: // comment or multi-line comment: /* comment */.

Q: किन्ही तीन सेंसर के नाम बताओ ?

Name any three sensors?

Ans: Proximity, Gyroscope, Pressure Sensor

Q: Open- IOT Architecture में कितने main Element है ?

How many main elements are there in Open-IOT Architecture?

Ans: 7

Q: What does a temperature sensor do?

Ans: It measures how hot or cold something is.

Q: Router किस Layer पर कार्य  करता है |

On which layer does the router work?

Ans: Network Layer

Q: IPv4 कितने बिट लम्बा एड्रेस है

Ipv4 address is how many bits long is 32Bits

Ans: 32Bits

Q: What is an actuator?

Ans: A device that converts energy into motion.

Q: What are some common types of actuators?

Ans: Electric, hydraulic, pneumatic, and mechanical actuators.

Q: What is iot?

Ans: Internet of Things, a network of physical objects connected to the internet, collecting and exchanging data.

Q: What is an iot protocol?

Ans: A set of rules that allow electronic devices to communicate with each other in an IoT network.

Q: What are some common iot protocols?

Ans: MQTT, CoAP, HTTP, LoRaWAN, Zigbee, Bluetooth, and Z-Wave.

Q: What is a microcontroller?

Ans: A small computer on a single integrated circuit that includes a processor, memory, and input/output peripherals.

Q: What are the main components of a microcontroller?

Ans: CPU, memory (RAM and ROM), and input/output ports.

Q: IPv6 कितने बिट लम्बा एड्रेस है

How many bits long is an ipv6 address?

Ans: 128Bits

Q: How many bits long is an MAC address?

Mac कितने बिट लम्बा एड्रेस है       

Ans: 48Bits

Q: Arduino UNO में  कौन सा Micro Controller use किया जाता है |

Which Micro Controller is used in Arduino UNO?

Ans: Atmega328p

Q: What does a pressure sensor do?

Ans: It measures the force of a liquid or gas on a surface.

Q: What is flash memory in a microcontroller?

Ans: Non-volatile memory used to store the program code.

Q: What is the function of the CPU in a microcontroller?

Ans: To execute instructions and process data.

Q: What are I/O ports in a microcontroller?

Ans: Pins used to connect the microcontroller to external devices.

Q: What is the purpose of the setup() function?

Ans: To initialize variables, pin modes, and start using libraries. It runs once when the program starts.

Q: What is the purpose of the loop() function?

Ans: To run the main code repeatedly.

Q: What is an analog-to-digital converter (ADC)?

Ans: A component that converts analog signals to digital data.

Q: What is a digital-to-analog converter (DAC)?

Ans: A component that converts digital data to analog signals.

Q: Tell about loop() and setup().

Ans: When Sketch starts, the Setup() function is called. And the Setup() function runs only once.

Q: loop() और setup() के बारे में बताओ

Ans: जब Sketch start होता है, तो Setup() function call किया जाता है| व Setup() function सिर्फ एक बार ही run होता है |

Q: What is the main function of an actuator?

Ans: To move or control a mechanism or system.

Q: What is a sensor?

Ans: A device that detects changes in the environment and sends information to other electronics.

Q: pinmode() function क्या काम करता है ?

Ans: pinmode() function input/output pin को configure करता है |

Q: What does the pinmode() function do?

Ans: The pinmode() function configures the input/output pins.

Q: What is the range of values for analogread()?

Ans: 0 to 1023.

Q: What is the function of delay() function?

Ans: The delay() function is used to delay the program line. And its value is in milliseconds.

Q: delay() function का क्या काम होता है ?

Ans: delay() function program line में delay करने के लिए प्रयोग करते है | व इसकी value milliseconds में होती है |

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