27 September, 2025 onwebsharmag 0 Comments 1 category 3:00 am/30 94 Report a question What's wrong with this question?You cannot submit an empty report. Please add some details. IoT PaperIoT Ch02 Things and Connections (100 MCQs) Student's Details Name*EmailPhone Number 1 / 30 Category: IoT Ch02 Things and Connections1. A system that has only one input and one output is: एक system जिसमें केवल एक input और एक output हो, कहलाता है: (A) SISO (B) MIMO (C) Both (a) and (b) (D) None of the aboveAnswer: (A) SISO- Single Input Single Output.Explanation:MIMO = Multiple Input Multiple Output. 2 / 30 Category: IoT Ch02 Things and Connections2. Twisted pair is not affected by electromagnetic interference. Twisted pair electromagnetic interference से प्रभावित नहीं होती। (A) False (B) TrueAnswer: (A) False, Twisted pair is affected. 3 / 30 Category: IoT Ch02 Things and Connections3. The inner core of an optical fiber is made of: Optical fiber का inner core किससे बना होता है? (A) Glass or plastic (B) Bimetallic (C) Copper (D) LiquidAnswer: (A) Glass or plastic- Optical fiber core is made of glass or plastic that helps in transmission of light signals. भाग / Partकिससे बना होता हैउपयोग / FunctionCoreGlass या high-grade silicaLight signal यहीं travel करता है—data का मुख्य रास्ताCladdingGlass या silica (lower refractive index)Light को core में reflect करता है—signal को बाहर जाने से रोकता हैBuffer CoatingPlastic या polymerCladding को moisture और physical damage से बचाता हैStrength MembersKevlar या steel strandsCable को खिंचाव और दबाव से बचाते हैं—durability बढ़ाते हैंOuter Jacket / SheathPVC या polyethyleneसभी अंदरूनी हिस्सों को environmental damage से बचाता हैKevlar Fibers (optional)Synthetic fiberExtra strength देते हैं—industrial या outdoor use मेंColor Coding (optional)Colored plastic या inkMultiple fibers को पहचानने के लिए—installation में मदद करता है 4 / 30 Category: IoT Ch02 Things and Connections4. Coaxial cable can be used for data rates over 10 Mbps and frequencies up to 400 MHz. Coaxial cable 10 Mbps से अधिक data rate और 400 MHz तक frequencies के लिए प्रयोग की जाती है। (A) False (B) TrueAnswer: (B) True 5 / 30 Category: IoT Ch02 Things and Connections5. Natural control system includes: Natural control system में शामिल है: (A) Solar system (B) Digestive system (C) Both (a) and (b) (D) None of the aboveAnswer: (C) Both (a) and (b) 6 / 30 Category: IoT Ch02 Things and Connections6. Which protocol is a Network layer protocol? निम्नलिखित में से कौन Network layer का protocol है? (A) IP (B) Telnet (C) FTP (D) None of the aboveAnswer: (A) IP 7 / 30 Category: IoT Ch02 Things and Connections7. Single mode used in fiber optics has dispersion problem. Fiber optics में single mode को dispersion problem होता है। (A) True (B) FalseAnswer: (B) False Explanation: Single mode has no dispersion (फैलाव) problem. That’s problem in Multimode fiber. 8 / 30 Category: IoT Ch02 Things and Connections8. Which of the following is not a guided medium? निम्नलिखित में से कौन guided medium नहीं है? (A) Twisted-pair cable (B) Fiber optic cable (C) Coaxial cable (D) AtmosphereAnswer: (D) AtmosphereExplanation: Atmosphere is unguided medium (wireless). 9 / 30 Category: IoT Ch02 Things and Connections9. A system that uses a measurement of the output and compares it with the desired output is: एक system जो output को मापकर desired output से तुलना करता है, कहलाता है: (A) Open-loop control system (B) Closed-loop control systemAnswer: (B) Closed-loop control system- Closed-loop compares output with input and adjusts automatically. 10 / 30 Category: IoT Ch02 Things and Connections10. End-to-end connection in TCP/IP is established by: TCP/IP में end-to-end connection किसके द्वारा establish होता है? (A) IP (B) UDP (C) TCP (D) All of theseAnswer: (C) TCP 11 / 30 Category: IoT Ch02 Things and Connections11. The OSI layer that arranges signals into frames is: OSI की वह layer जो signals को frames में बदलती है: (A) Transport (B) Physical (C) Data Link (D) ApplicationAnswer: (C) Data Link: Data Link layer creates frames. LayerData Unit NameFunction/Signal ArrangementApplication (7)DataUser commands, protocols (HTTP, SMTP), application dataPresentation (6)DataData formatting, encryption, translation, compressionSession (5)DataSession management, dialog control, sync infoTransport (4)SegmentSegmentation, sequencing, port numbers, reliability infoNetwork (3)PacketLogical addressing (IP), routing infoData Link (2)FramePhysical addressing (MAC), frames, error detection attachedPhysical (1)Bits (Signals)Actual electric/optical signals as 0s and 1s, transmission 12 / 30 Category: IoT Ch02 Things and Connections12. Automation is always open-loop system. Automation हमेशा open-loop system होता है। (A) True (B) FalseAnswer: (B) False → Automation can be closed-loop too. 13 / 30 Category: IoT Ch02 Things and Connections13. A wireless network uses ______ waves to transmit signals. Wireless network signals transmit करने के लिए ______ waves का प्रयोग करता है। (A) Radio (B) Microwave (C) Sound (D) MechanicalAnswer: (A) Radio- Wireless networks सामान्यत: radio waves (रेडियो तरंगों) का उपयोग करते हैं, मगर खास context में microwaves या infrared waves का भी उपयोग हो सकता है। 14 / 30 Category: IoT Ch02 Things and Connections14. UTP category 3 can be used in Fast Ethernet networks. UTP category 3 Fast Ethernet networks में प्रयोग की जा सकती है। (A) True (B) FalseAnswer: (B) False → Fast Ethernet needs Cat5 or above. 15 / 30 Category: IoT Ch02 Things and Connections15. Receiving computer passes data to Session layer in usable form. Receiving computer usable form में data को Session layer को देता है। (A) True (B) FalseAnswer: (A) True 16 / 30 Category: IoT Ch02 Things and Connections16. Which of the following is not a guided medium? इनमें से कौन guided medium नहीं है? (A) Twisted pair (B) Fiber optic cable (C) Coaxial cable (D) Radio WavesAnswer: (D) Radio Waves 17 / 30 Category: IoT Ch02 Things and Connections17. The control system where outputs are mechanical quantities like velocity is called Servo system. नियंत्रण प्रणाली जहाँ outputs mechanical quantities जैसे velocity होते हैं, Servo system कहलाता है। (A) True (B) FalseAnswer: (A) True 18 / 30 Category: IoT Ch02 Things and Connections18. Transmission media are usually categorized as: Transmission media आमतौर पर किस रूप में वर्गीकृत की जाती हैं? (A) Fixed or unfixed (B) Guided or unguided (C) Determinate (D) None of the aboveAnswer: (B) Guided or unguided- Communication media are of two types – guided (wired) and unguided (Wireless). 19 / 30 Category: IoT Ch02 Things and Connections19. Coaxial cable supports data rate of several tens of Mbps up to several kilometers. Coaxial cable कई किलोमीटर तक tens of Mbps data rate सपोर्ट करती है। (A) True (B) FalseAnswer: (B) False- कोएक्सियल केबल कई किलोमीटर तक tens of Mbps की डेटा दर का समर्थन कर सकता है। लंबी दूरी पर सिग्नल कम होने (अटेन्युएशन) के कारण इसकी सीमाएँ होती हैं। 20 / 30 Category: IoT Ch02 Things and Connections20. The OSI model divides activity into 5 layers. OSI model activity को 5 layers में divide करता है। (A) True (B) FalseAnswer: (B) False 21 / 30 Category: IoT Ch02 Things and Connections21. UTP category 3 can be used in Fast Ethernet networks. UTP category 3 Fast Ethernet networks में प्रयोग की जाती है। (A) True (B) FalseAnswer: (B) False- Cat3- 10 mbps (100 m) Cat 5e- 1 gbps (100 m) Cat 6- 10 gbps (55-100 m) 22 / 30 Category: IoT Ch02 Things and Connections22. Which layer of the OSI model does data compression? OSI model की कौन-सी layer data compression करती है? (A) Network (B) Data Link (C) Physical (D) PresentationAnswer: (D) Presentation- The presentation layer handles data compression, encryption, and translation. 23 / 30 Category: IoT Ch02 Things and Connections23. Bits from physical layer are converted into frames by: Physical layer से आए bits को frames में कौन बदलता है? (A) Data Link layer (B) Network layer (C) Transport layer (D) None of theseAnswer: (A) Data Link layer 24 / 30 Category: IoT Ch02 Things and Connections24. The Internet Protocol corresponds to which OSI layer? Internet Protocol किस OSI layer से संबंधित है? (A) Network Layer (B) Transport Layer (C) Data Link Layer (D) Session LayerAnswer: (A) Network Layer: IP works at the Network layer. 25 / 30 Category: IoT Ch02 Things and Connections25. The main function of Transport layer is: Transport layer का मुख्य कार्य है: (A) Node-to-node delivery (B) Process-to-process delivery (C) Synchronization (D) Routing table updateAnswer: (B) Process-to-process delivery 26 / 30 Category: IoT Ch02 Things and Connections26. In single-mode optic fiber, the core is 8–10 microns and 1 micron = 1/1000000 of a meter. Single-mode fiber का core 8–10 microns का होता है और 1 micron = 1/1000000 meter। (A) True (B) FalseAnswer: (A) True 27 / 30 Category: IoT Ch02 Things and Connections27. A system that utilizes a device to control the process without using feedback is called: एक system जो बिना feedback के process को नियंत्रित करता है, कहलाता है: (A) Open-loop control system (B) Closed-loop control system (C) Regulator (D) All of the aboveAnswer: (A) Open-loop control system- They cannot adjust themselves based on output. Example: Washing machine timer.Explanation:Closed-loop → Closed-loop feedback control system, because it always uses feedbackRegulator uses feedback. 28 / 30 Category: IoT Ch02 Things and Connections28. HTTP works at Application layer of OSI model. HTTP OSI model की Application layer पर काम करता है। (A) True (B) FalseAnswer: (A) True 29 / 30 Category: IoT Ch02 Things and Connections29. This output signal is feedback so that it subtracts from the input signal. यह output signal feedback है जो input signal से घटता है। (A) Negative feedback (B) Positive feedback (C) Both (a) and (b) (D) None of the abovenswer: (A) Negative feedback- the feedback signal is subtracted from the input signal to reduce the error and stabilize the system. Negative feedback में फीडबैक सिग्नल को इनपुट से घटाया जाता है ताकि error कम हो और system स्थिर रहे।Explanation:Positive feedback adds to input → unstable. 30 / 30 Category: IoT Ch02 Things and Connections30. Which type of cable has a glass center core? किस cable का center core glass का बना होता है? (A) UTP (B) Fiber optic (C) STP (D) CoaxialAnswer: (B) Fiber optic Your score isThe average score is 70% 0% Restart quiz Category: BlogLeave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment *Name * Email * Website Save my name, email, and website in this browser for the next time I comment. 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