Transmission Media Question & Answers November 3, 2022 By WatElectronics This article lists 100 Transmission Media MCQs for engineering students. All the Transmission Media Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Transmission Media. In data communications, physical paths are established between the receiver and a transmitter that allows sending data referred to as the Transmission medium. It is a type of channel that establishes communication between the receiver and the sender. Data is transmitted in the form of Electromagnetic signals. Through transmission, medium information is carried through a Local Area Network (LAN) in bits format. If the network is based on copper, bits are transferred as Electrical signals. For a network based on optical-fiber bits are transferred as Light pulses. For an Open System Interconnection transmission medium present in the first layer i.e., referred to as Physical Layer. Medium and signal characteristics determine the transmitted data's quality. Each transmission medium has distinct properties. Transmission Media is categorized into two types. They are Guided and Unguided media. Guided media is referred to as the Bounded or wired media of transmission. These are preferred to transmit data for shorter ranges. Unguided Media is a wireless media of transmission that is unbounded. Signals in such media are broadcasted via air and are preferred for a larger range of distances. Satellite communication is a part of unguided transmission. 1). What is the channel that communicates and carries information from the communicator to the decoder? Transmission Media Sender Media Receiver Media a & b None Hint 2). Transmission Media is present at ____________ layer of OSI model? Physical Layer Data Layer Transport Layer Session Layer None Hint 3). Transmission Media carries information in ________ format? Bits Byte Frame Nibble None Hint 4). In data communications, transmission medium is the path established between ____________ physically? Sender and Receiver Source and Destination Server and Client All Mentioned Above None Hint 5). In _____________network, bits are transmitted as pulses of light? Fibre Based Network Copper Based Network Radio-waves Based Network All Mentioned Above None Hint 6). What are the various properties of Transmission Media? Bandwidth Delay Cost All Mentioned Above None Hint 7). What are the various factors considered while designing of transmission medium? Bandwidth Transmission Impairment Interference a, b & c None Hint 8). Bandwidth and the transmitted data is _____________? Directly Proportional Inversely Proportional Doesn’t Depend on Each Other Independent of Each Other None Hint 9). What happens if the transmitter and the signal received are not identical? Bandwidth Transmission Impairment Interference a, b & c None Hint 10). Adding unwanted signals destroys its quality and this process is referred to as _________? Bandwidth Transmission Impairment Interference a, b & c None Hint Read More About Transmission Media 11). Why do signals suffer impairment in transmission? Attenuation Distortion Noise All Mentioned Above None Hint 12). What is attenuation in Transmission media? Signal Shape is Changed Loss of Signals Energy Addition of Unwanted Signals Noise Created None Hint 13). Transmission media suffer from distortion leads to __________? Signal Shape is Changed Loss of Signals Energy Addition of Unwanted Signals Noise Created None Hint 14). Distinct signals with distinct frequencies propagated causes _____________? Attenuation Delay Distortion Noise Signal Loss None Hint 15). Addition of unnecessary signals creates __________ while transmission? Attenuation Distortion Noise All Mentioned Above None Hint 16). Transmission Media is classified as ____________? Un-Guided Guided Direct a & b None Hint 17). Physical medium to transmit signals is present in _____________? Un-Guided Guided Direct Indirect None Hint 18). Which is referred to as Bounded Media? Un-Guided Guided Direct Indirect None Hint 19). What are the various features that describe Guided media? High Speed Secure Less Speed a & b None Hint 20). Which one is preferred for short distances? Un-Guided Guided Direct Indirect None Hint 21). Twisted Pair of cables comes under the category of _____________? Un-Guided Guided Direct Indirect None Hint 22). Which is cheaper in comparison to various Transmission media? Twisted Pair Optical Fibre Coaxial Cable a & c None Hint 23). What are the frequency ranges for twisted-pair cables? 0-3 Hz 0-3.5 Hz 0-3.5 K Hz 0-4 K Hz None Hint 24). How many wires of insulated coppers are present in twisted pairs? Four Three Two None None Hint 25). Twisted pair of cables are preferred in _______________? Voice Communications Data Communications Radio Communications a & b None Hint Transmission Media MCQs for Quiz 26). Degree of reduced noise interferences in Twisted pair is ____________? Number of Turns Number of Turns per Foot Number of Wires Number of Twisted Wires None Hint 27). What are the various types of twisted pairs? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable a & b None Hint 28). ______________ blocks interferences & independent of Physical shields? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable a & b None Hint 29). In how many categories UTP is classified? Five Four Three Two None Hint 30). Which category of UTP supports Telephone lines? Category 1 Category 2 Category 4 Category 5 None Hint 31). How much speed is supported by category 2 of UTP? 2 Mbps 4 Mbps 16 Mbps 20 Mbps None Hint 32). Which category of UTP supports longer-distance communications? Category 1 Category 2 Category 4 Category 5 None Hint 33). Which cable consists of mesh-surrounded wire? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable a & b None Hint 34). Which is easily susceptible to interferences occurring externally? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable a & b None Hint 35). Compared to UTPs how STPs are better? Better Performance Eliminates Crosstalk Faster All Mentioned Above None Hint 36). What consists shield with a conductor placed in the center? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Optical Fibre None Hint 37). How many cores does a Coaxial cable have? Inner Core Outer Core Middle Core All Mentioned Above None Hint 38). What in Coaxial cable separates Copper and its mesh? Inner Core Outer Core Middle Core All Mentioned Above None Hint 39). Which one is responsible to transfer data in Coaxial cables? Inner Core Outer Core Middle Core All Mentioned Above None Hint 40). What in Coaxial cable prevents Electromagnetic Interference? Inner Core Outer Core Middle Core All Mentioned Above None Hint 41). How many modes does a Coaxial cable have? Four Three Two None None Hint 42). Baseband mode of co-axial cables have __________? Separate Range of Cable Bandwidths Dedicated Cable Bandwidth a & b Varying Bandwidths None Hint 43). Single failure of cable can disrupt the whole network in ___________? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Optical Fibre None Hint 44). What is the more expensive type of cable in Transmission media? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable a, b and c None Hint 45). Electric signals are utilized for communicating in __________ cables? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Optical Fibre None Hint 46). _____________ have faster rates of transmitting data? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Optical Fibre None Hint 47). _______________ uses light refraction concept? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Optical Fibre None Hint 48). Core in Optical fiber surrounding with lesser density glass referred to as _________? Cladding Contempt Convulsion Clamping None Hint 49). Larger volume of information in Optical fibre is transmitted using ___________? Cladding Contempt Convulsion Clamping None Hint 50). Cables of Optical fibre can be ___________? Uni-directional Bi-directional Omni Directional a or b None Hint Transmission Media MCQs for Students 51). Less signal gets attenuated in ___________? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Optical Fibre None Hint 52). What are the various advantages of using Optical Fibre cables? Increased Capacity Increased Bandwidth Increased Frequency a & b None Hint 53). ______________ are difficult to maintain and install? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Optical Fibre None Hint 54). What are the basic elements present in Optical Fibre made cables? Jacket Cladding Core All Mentioned Above None Hint 55). Narrow strand in Optical fibre is made of ______________? Wood Glass Dielectric Iron None Hint 56). Why optical fibres are coated with plastic? To Protect from Heat To Protect from Cold a & b Unable to Protect from Temperatures None Hint 57). _____________ is the area where light is transmitted in fibre? Jacket Cladding Core Insulator None Hint 58). What concept is utilized to transmit waves of light in optical fiber? Refraction Reflection Demodulation Modulation None Hint 59). Lower refractive indexes are provided in optical fibre by ____________? Jacket Cladding Core Insulator None Hint 60). What protects extra protection from Optical fiber? Jacket Cladding Core Insulator None Hint 61). _______________ can carry large information through Transmission media? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Optical Fibre None Hint 62). Why it is advantageous to place Optical fiber-made cables? Thinner & Sturdier Long Distance Communication Higher Speed and Large Bandwidths All Mentioned Above None Hint 63). Which is the earliest planar line of transmission? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Strip lines None Hint 64). What is the material used for conduction in strip lines? Glass Plastic Wave Guide Dielectric None Hint 65). Dielectric used in separating the material used for conduction in _______________ transmission medium? Shielded Twisted Pair Un- Shielded Twisted Pair Micro Striplines Strip lines None Hint 66). What is a transverse EM medium of transmission lines? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Strip lines None Hint 67). What is known as Unbounded Transmission media? Un-Guided Guided Direct a & b None Hint 68). What is broadcasting media for unbounded transmissions? Air Glass Water Wood None Hint 69). What is used for long-distance transmissions? Un-Guided Guided Direct Indirect None Hint 70). Radio waves are transmitted using ____________? Un-Guided Guided Direct a & b None Hint 71). What type of waves can get penetrated via buildings? Radio Waves Microwaves Infrared Waves All Kind of Waves None Hint 72). Radio Waves are _____________? Uni-Directional Directional Omni Directional Bi-Directional None Hint 73). Any receiving antennas can receive the signal sent in ______________? Radio Waves Microwaves Infrared Waves All Kind of Waves None Hint 74). What is the frequency range of Radio waves? 3 K Hz-100 K Hz 3 K Hz-1 G Hz 3 G Hz-1 T Hz 3 G Hz-300 G Hz None Hint 75). Multicasting is provided by __________? Radio Waves Microwaves Infrared Waves All Kind of Waves None Hint Transmission Media MCQs for Interviews 76). What are the various categories of Microwaves? Terrestrial Microwave Transmission Satellite Microwave Transmission Sky Wave Propagation a & b None Hint 77). What is the frequency range offered by microwaves? 3 K Hz-100 K Hz 1G Hz-1000 G Hz 3 G Hz-1 T Hz 3 G Hz-300 G Hz None Hint 78). Microwave transmission is ______________? Uni-Directional Directional Omni Directional Bi-Directional None Hint 79). ____________ transmission works on Line of sight? Radio Waves Microwaves Infrared Waves All Kind of Waves None Hint 80). 1-10 Mbps of bandwidth is supported by _________? Radio Waves Microwaves Infrared Waves All Kind of Waves None Hint 81). What causes attenuation in microwaves? Environmental Conditions Size of Antenna Temperature a & b None Hint 82). ______________ transmission is cheapest compared to other cables? Radio Waves Microwaves Infrared Waves All Kind of Waves None Hint 83). Eavesdropping is the downside of ____________ transmission? Radio Waves Microwaves Infrared Waves All Kind of Waves None Hint 84). Which communication is more reliable? Terrestrial Microwave Transmission Satellite Microwave Transmission Coaxial Cable Optical Fiber None Hint 85). Satellite microwave communications cost is independent of ____________? Distance from Coverage Areas Centre Environmental Conditions Temperature Weather None Hint 86). ____________ requires regular monitoring and control in Satellite-based communication? Satellite Orbit Signals Antenna None Hint 87). For short ranges what transmission is preferred in unguided media of transmission? Radio Waves Microwaves Infrared Waves Optical Fiber None Hint 88). What is the frequency range offered in Infrared transmission? 3 K Hz-100 K Hz 1G Hz-1000 G Hz 3 G Hz-1 T Hz 300 G Hz-400 T Hz None Hint 89). _____________ cannot be penetrated from one room to other in wireless transmissions? Radio Waves Microwaves Infrared Waves Optical Fibre None Hint 90). Infrared transmissions offer better ____________? Security Distortion Interference Noise None Hint 91). _____________ have immunity to noise in Guide media of transmission? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable Optical Fibre None Hint 92). __________ transmission suffer the interference of waves from sun. Radio Waves Microwaves Infrared Waves Optical Fibre None Hint 93). ____________ transmission takes place in TVs Remote? Radio Waves Microwaves Infrared Waves Optical Fibre None Hint 94). Wireless communication use ____________? Terrestrial Microwave Transmission Satellite Microwave Transmission Coaxial Cable Optical Fiber None Hint 95). What are the various applications of Satellite-based Microwave Communication? Radio/TV Broadcasting Mobile Communications Weather Forecasting All Mentioned Above None Hint 96). Signals in Microwave transmissions gets ___________? In Phase Out of Phase a & b No Change in Phase None Hint 97). What are the various uses of Radio wave transmissions? AM Radios FM Radios Cordless Phones All Mentioned Above None Hint 98). Analog Television networks prefer ____________? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable a & b None Hint 99). High-speed LANs use ____________? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable a & b None Hint 100). Telephonic applications make use of ______________? Shielded Twisted Pair Un- Shielded Twisted Pair Coaxial Cable a & b None Hint Please fill in the comment box below. Time's up
