# IOT based Questions and Answers

Published: 2024-08-03 · By Next-G Classes · Source: https://nextgclasses.com/blog/iot-based-questions-and-answers

<p>1.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IOT FULL FORM : INTERNET OF THINGS</p>
<p>2.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Who coined the term &ldquo;IOT&rdquo; : Kevin Asthon</p>
<p>3.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; In 1991 the actual term &ldquo;IOT&rdquo; WAS INTRODUCED</p>
<p>4.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; In RFID , R stands for Radio</p>
<p>5.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Zigbee is a task group in personal area network</p>
<p>6.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Zigbee IEEE STANDARDS 802.15.4</p>
<p>7.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Zigbee IS WIRLESS TECHNOLOGY</p>
<p>8.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Zigbee IS LOW COST</p>
<p>9.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Zigbee FOLLOW MESH TOPOLOGY OR NETWORK</p>
<p>10.&nbsp;&nbsp; MQTT is a light weight IOT Protocol</p>
<p>11.&nbsp;&nbsp; Zigbee, NFC, BLUETOOTH is not suitable communication in IOT.</p>
<p>12.&nbsp;&nbsp; Virtual things is not equal to Iot.</p>
<p>13.&nbsp;&nbsp; Zigbee frequency range is mostly 2.4 GHz</p>
<p>14.&nbsp;&nbsp; People is not component of IOT<strong><br /><br />MCQ Questions and Answers <br /></strong></p>
<p><strong>Q.1 Which wireless communication technology is commonly used in IOT </strong><strong>devices for short range communication?</strong></p>
<p>a. Bluetooth</p>
<p>b. Wi-fi</p>
<p>c. 4G Lite</p>
<p><strong>d. More than one of the above</strong></p>
<p>e. None of these</p>
<p><strong>Q.2 Which of the following is an example of an IOT protocol used for device communication?</strong></p>
<p>a. HTTP &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; b. FTP&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c. MQTT&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; d. CoAP &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>E. More than one of the above</strong></p>
<p><strong>Q. 3. Which among the following are limited factors of IOT?</strong></p>
<p>a. low power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; b. low processing power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c. low memory&nbsp; d. <strong>All of These</strong>&nbsp;&nbsp; &nbsp;&nbsp; e. none of these</p>
<p><strong>Q.4 Which of the following is false about IOT devices?</strong></p>
<p>a. iot devices use the internet for collecting and sharing data</p>
<p>b. iot devices need microcontrollers</p>
<p>c. it uses wireless technology</p>
<p><strong>d. IOT devices are completely safe</strong></p>
<p>e. all of these</p>
<p><strong>Q. 5 Which of the following is not an iot plateform?</strong></p>
<p>a. amzon web services</p>
<p>b. Microsoft azure</p>
<p>c. salesforce</p>
<p><strong>d. flipkart</strong></p>
<p>e. all of these</p>
<p><strong>Q. 6 Which of the following is not a fundamental component of iot system?</strong></p>
<p>a. sensors</p>
<p>b. connectivity and data processing</p>
<p>c. user interface</p>
<p><strong>d. transformer</strong></p>
<p>e. gateways</p>
<p><strong>Q.7 Which of the full form of IIOT?</strong></p>
<p>a. INDEX internet of things</p>
<p>b. incorporate internet of things</p>
<p><strong>c. Industrial internet of things</strong></p>
<p>d. intenseinternet of things</p>
<p>e. none of these</p>
<p><strong>Q. 8 Which layer is used for Ethernet and wireless connection in iot devices?</strong></p>
<p>A. APPLICATION LAYER</p>
<p>B. NETWORK LAYER</p>
<p><strong>C. DATA LINK LAYER</strong></p>
<p>D. TRANSPORT LAYER</p>
<p>E. ALL OF THESES</p>
<p><strong>Q.9&nbsp; Which of the flowing is used to capture data from the physical world in IoT devices?</strong></p>
<p><strong>A. Sensors</strong></p>
<p>B. Actuators</p>
<p>C. microprocessors</p>
<p>D. microcontrollers</p>
<p>E. all</p>
<p><strong>Q. 10. Which of the following command is used to trigger the amazon echo IOT device?</strong></p>
<p>A. hello</p>
<p>B. siri</p>
<p><strong>C. alexa</strong></p>
<p>D. hey</p>
<p>E. all</p>
<p><strong>Q. 11. Which of the following is true about Arduino IoT devices?</strong></p>
<p><strong>A. they are open source software</strong></p>
<p>B. they only read analog i/ps</p>
<p>C. they have their own OS</p>
<p>D. they don&rsquo;t have preprogrammed firmware</p>
<p>E. All<br /><br /></p>
<p><strong>1. What is the full form of IANA?</strong></p>
<ol start="1"><ol start="1">
<li>Internal Assessment Numerical Access</li>
<li>Internet Association Numbers Authority</li>
<li>International Aid For Network Automation</li>
<li>Internet Assigned Numbers Authority</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p><strong>2. Which of the following cannot be considered an IoT device?</strong></p>
<ol start="1"><ol start="1">
<li>Smartwatch</li>
<li>Andriod Phone</li>
<li>Laptop</li>
<li>Tubelight</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p><strong>4. Which is not an IoT platform?</strong></p>
<ol start="1"><ol start="1">
<li>Xiaomi Cloud</li>
<li>GoogleCloud&nbsp;</li>
<li>Myntra</li>
<li>AWS(Amazon Web Services)</li>
</ol></ol>
<p><strong>Answer:- C</strong></p>
<p>Explanation: AWS, Google Cloud, and Xiaomi Cloud deliver cloud computing IoT services. But Myntra is an e-commerce website that supplies goods.</p>
<p><strong>5. Which of the following cannot be considered an IoT device?</strong></p>
<ol start="1"><ol start="1">
<li>Smartwatch</li>
<li>Andriod Phone</li>
<li>Laptop</li>
<li>Tubelight</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p><strong>6. IoT is based on ______ technology.</strong></p>
<ol start="1"><ol start="1">
<li>Hardware</li>
<li>Software</li>
<li>None</li>
<li>Both of these</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p><strong>7. What is the standard form of RFID?</strong></p>
<ol start="1"><ol start="1">
<li>Radio Frequency Identification</li>
<li>Radio Waves Frequency Identification</li>
<li>Radio Frequency InterDependent&nbsp;</li>
<li>Radio Wave Frequency Independent</li>
</ol></ol>
<p><strong>Answer:- A</strong></p>
<p><strong>8. What is considered the standard length for a MAC Address?</strong></p>
<ol start="1"><ol start="1">
<li>8 bits</li>
<li>32 bits</li>
<li>48 bits</li>
<li>None of these</li>
</ol></ol>
<p><strong>Answer:- C</strong></p>
<p><strong>9. What &ldquo;bit&rdquo; represents the address bit in the control register?</strong></p>
<ol start="1"><ol start="1">
<li>MML</li>
<li>ML</li>
<li>MX</li>
<li>MM</li>
</ol></ol>
<p><strong>Answer:- C</strong></p>
<p><strong>10. What is mandatory for an IP Packet to contain?</strong></p>
<ol start="1"><ol start="1">
<li>Destination IP Address</li>
<li>Source IP Address</li>
<li>Both of these</li>
<li>None of these</li>
</ol></ol>
<p><strong>Answer:- C</strong></p>
<p>Explanation: Each IP Packet must contain source and destination IP addresses.</p>
<p><strong>11. At which level does the router operate in the OSI reference model?</strong></p>
<ol start="1"><ol start="1">
<li>Data Link</li>
<li>Network</li>
<li>Physical</li>
<li>None of these</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p><strong>12. What is an IoT network?</strong></p>
<ol start="1"><ol start="1">
<li>a collection of networked devices</li>
<li>a collection of Interconnected devices</li>
<li>a collection of signalled devices</li>
<li>None of the above</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p>Explanation:&nbsp; IoT is a massive network of devices that are connected with each other. These devices collect and transmit data to each other.</p>
<p><strong>13. Full form of MQTT?</strong></p>
<ol start="1"><ol start="1">
<li>Message Queue Telemetry Transport</li>
<li>Messanger Queue Telemetry Transport</li>
<li>Message Queuery Telemetry Transport</li>
<li>None of these</li>
</ol></ol>
<p><strong>Answer:- A</strong></p>
<p><strong>14. Full-Form of VNC:&nbsp;</strong></p>
<ol start="1"><ol start="1">
<li>Virtual network of computers</li>
<li>Very network of computers</li>
<li>Virtual network for communication</li>
<li>Virtual network computing</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p><strong>15. What is the java extension file used in IoT?</strong></p>
<ol start="1"><ol start="1">
<li>.jar</li>
<li>.obj</li>
<li>.cpp</li>
<li>.exe</li>
</ol></ol>
<p><strong>Answer:-A</strong></p>
<p><strong>16. Which one out of these is not a Data Link Layer Technology?</strong></p>
<ol start="1"><ol start="1">
<li>Bluetooth</li>
<li>Wifi</li>
<li>HTTP</li>
<li>Mobile Hotspot</li>
</ol></ol>
<p><strong>Answer:- C</strong></p>
<p><strong>17. What is the standard form of LLN?</strong></p>
<ol start="1"><ol start="1">
<li>Lower Lossy Network</li>
<li>Low Power Lossy Network</li>
<li>Lossy Low Power Network</li>
<li>Low Lossy Powered Network</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p><strong>18. What type of interface is used by fingerprint sensors to collect data?</strong></p>
<ol start="1"><ol start="1">
<li>IPI interface</li>
<li>UART interface</li>
<li>I2P interface</li>
<li>None</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p><strong>19. How many wires does the SPI protocol use?</strong></p>
<ol start="1"><ol start="1">
<li>3</li>
<li>4</li>
<li>2</li>
<li>More than 4</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p><strong>20. Which of the following things is mandatory for the IoT gateway to provide?</strong></p>
<ol start="1"><ol start="1">
<li>Simple and secure installation</li>
<li>Data network and storage</li>
<li>Software Security</li>
<li>Protocol abstraction</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p>Explanation: An IoT gateway must provide a few things like Protocol abstraction, Computing, I/O performance, and Integration communication capability to enhance the security of the user.</p>
<p><strong>21. In which of the following way, data is associated with an IoT device:</strong></p>
<ol start="1"><ol start="1">
<li>Internet</li>
<li>Network connection</li>
<li>Cables</li>
<li>Cloud</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p><strong>22. Full form of HART:</strong></p>
<ol start="1"><ol start="1">
<li>Highway Address Remote Transmitter</li>
<li>Highway Addressable Remote Transducer</li>
<li>Highway Addressable Router Transmitter</li>
<li>Highway Address Remote Transmitter</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p><strong>23. Full form of LPWAN:</strong></p>
<ol start="1"><ol start="1">
<li>Low Power Wide Area Network</li>
<li>Lower Power Wide Area of Network</li>
<li>Low Protocol Wide Area of Network</li>
<li>Long Protocol Wider Area Network</li>
</ol></ol>
<p><strong>Answer:- A</strong></p>
<p><strong>24. What do API systems enable?</strong></p>
<ol start="1"><ol start="1">
<li>Networks service portability is allowed by API</li>
<li>Systems service portability is allowed by API</li>
<li>Device service portability is allowed by API</li>
<li>All of these</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p>Explanation: API systems enable the portability of Systems Service.</p>
<p><strong>25. What do RETful API systems allow the user?</strong></p>
<ol start="1">
<li>&nbsp;</li>
<ol start="1">
<li>to enhance security</li>
<li>to modify communication capability</li>
<li>to control electronic components</li>
<li>All of these</li>
</ol></ol>
<p><strong>Answer:- C</strong></p>
<p><strong>26. In IoT, does the _____ layer help in end-to-end communication?</strong></p>
<ol start="1"><ol start="1">
<li>security</li>
<li>transport</li>
<li>data communication</li>
<li>logical</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p>Explanation: The transport layer is used to provide end-to-end communication in IoT.</p>
<p><strong>27. LTE stands for:</strong></p>
<ol start="1"><ol start="1">
<li>Long Terminal evolution</li>
<li>Lower Terminal evolution</li>
<li>Long Term evolution</li>
<li>None</li>
</ol></ol>
<p><strong>Answer:- C</strong></p>
<p><strong>28. Many-Valued Logic is formed because of:</strong></p>
<ol start="1"><ol start="1">
<li>binary logic</li>
<li>Hexa logic</li>
<li>fuzzy logic</li>
<li>All of these</li>
</ol></ol>
<p><strong>Answer:- C</strong></p>
<p><strong>29. The collection of ____ that connects several devices is called the bus.</strong></p>
<ol start="1"><ol start="1">
<li>network</li>
<li>lines</li>
<li>cables</li>
<li>None of these</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p>Explanation: A collection of lines that connects several devices is called bus.</p>
<p><strong>30. ____ is a security mechanism used in WiFi.</strong></p>
<ol start="1"><ol start="1">
<li>WPA</li>
<li>HTTP</li>
<li>MLA</li>
<li>None of these</li>
</ol></ol>
<p><strong>Answer:- A</strong></p>
<p><strong>31. The main purpose of the web of things(WoT) in IoT is:</strong></p>
<ol start="1"><ol start="1">
<li>to increase the cost</li>
<li>to improve security</li>
<li>to improve the usability and interoperability</li>
<li>All of these</li>
</ol></ol>
<p><strong>Answer:- C</strong></p>
<p>Explanation: Web of things(WoT) is used to improve the usability and interoperability of IoT.</p>
<p><strong>32. The storage is _____ in IoT.</strong></p>
<ol start="1"><ol start="1">
<li>limited</li>
<li>unlimited</li>
<li>not available</li>
<li>All of these</li>
</ol></ol>
<p><strong>Answer:- A</strong></p>
<p>Explanation: The storage in IoT is very limited.</p>
<p><strong>33. At what rate can NFC transmit data?</strong></p>
<ol start="1"><ol start="1">
<li>424 Kbps</li>
<li>1106 Kbps</li>
<li>216 Kbps</li>
<li>All of these</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p>Explanation: The NFC can transfer data at any speed of either 212, 1106, or 424 Kbps.</p>
<p><strong>34. The standard form of ICT is:</strong></p>
<ol start="1"><ol start="1">
<li>Inter Connected Technology</li>
<li>International Connection Technology</li>
<li>Inter Communication Technology</li>
<li>Information and Communication Technology</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p><strong>35. Which of the following uses Java Language?</strong></p>
<ol start="1"><ol start="1">
<li>GSN</li>
<li>MMQT</li>
<li>GAN</li>
<li>None of these</li>
</ol></ol>
<p><strong>Answer:- A</strong></p>
<p>Explanation:&nbsp; GSN(Global Sensor Network) uses Java as it is more portable than other languages like C++, Python, etc.</p>
<p><strong>36. Domain Name System is used to:</strong></p>
<ol start="1"><ol start="1">
<li>provide system security</li>
<li>enhance network communication</li>
<li>increase data and speed</li>
<li>obtain IP Address</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p><strong>37. The standard form of CGI is:</strong></p>
<ol start="1"><ol start="1">
<li>Common Gateway of Interest</li>
<li>Common Gate Interfere</li>
<li>Common Gateway Interdependent</li>
<li>None</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p>Explanation:&nbsp; CGI stands for Common Gateway Interface.</p>
<p><strong>38. Which of the following is not a short-range wireless network?</strong></p>
<ol start="1"><ol start="1">
<li>Bluetooth</li>
<li>VPN</li>
<li>Wifi</li>
<li>Hotspot</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p>Explanation:&nbsp; Those wireless networks having a short-range like Bluetooth and Wifi are called short-range wireless networks. These are suitable for working in the local environment.</p>
<p><strong>39. A _____ is the component that executes a program in an IoT system.</strong></p>
<ol start="1"><ol start="1">
<li>micro converter</li>
<li>microcontroller</li>
<li>microsensor</li>
<li>None</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p>Explanation:&nbsp; A Microcontroller is a component that executes a program in an IoT system. It consists of a command unit, storage memory, timers, etc., that are used to handle the execution of a program.</p>
<p><strong>40. Which of the following is not LPWAN Technologies?</strong></p>
<ol start="1"><ol start="1">
<li>LORA</li>
<li>SIGFOX</li>
<li>NB-IoT</li>
<li>Bluetooth</li>
</ol></ol>
<p><strong>Answer:- D</strong></p>
<p><strong>41. With two-factor Authentication, which attack can be users vulnerable to?</strong></p>
<ol start="1"><ol start="1">
<li>Ransome ware Attack</li>
<li>Man-in-the-middle attack</li>
<li>Cross Attack</li>
<li>Radiant Attack</li>
</ol></ol>
<p><strong>Answer:- B</strong></p>
<p>Explanation: Users may be vulnerable to a man-in-the-middle attack even after two-factor authentication.&nbsp;</p>
<p><strong>42. Which one out of these is in a format which is not readable by the user?</strong></p>
<ol start="1"><ol start="1">
<li>Encryption</li>
<li>Passwords</li>
<li>.text</li>
<li>None of these</li>
</ol></ol>
<p><strong>Answer:- A</strong></p>