Optical Fiber Communication Question & Answers May 26, 2021 By WatElectronics This article lists 150+ Optical Fiber Communication MCQs for engineering students. All the Optical Fiber Communication Questions & Answers given below include a solution and link wherever possible to the relevant topic. In a communication system, the internet has become a deriving force. Every day we are sending around 12 million email messages, 0.5 million voice mail messages, 37 million people are logging on the net, and around 100 million additional internet users are adding year by year, all these things happening only because of optical communication. Nowadays we are using the internet facilities to provide multiple numbers of services in various domains. Day by day the number of applications is being increased and to serve all these growing applications lots of bandwidth is required. We can operate multiple numbers of applications with an available bandwidth which is in terms of terahertz. There are two types of optical fibers are there they are step-index and graded-index optical fiber. The bandwidth of the fiber-optic is in THz whereas the copper wire communication bandwidth is in several MHz. The bandwidth of copper wire communication is very low compared to fiber-optic communication. An optical fiber cable acts as a transmission medium in optical communication which is made up of glass or plastic material. An optical fiber function as a cylindrical ridged waveguide and the cylindrical waveguide operates at optical frequencies which are in the terra hertz’s range. 1). Which is the transmission medium between the transmitter and receiver? Coaxial cable Waveguide Optical fiber cable None of the above None Hint 2). In microwave technology which one is acting as a transmission medium? Coaxial cable Waveguide Optical fiber cable None of the above None Hint 3). In optical communication _________ acts as a transmission medium Coaxial cable Waveguide Optical fiber cable None of the above None Hint 4). An optical fiber is made up of _______ material Glass Plastic Glass or plastic Copper None Hint 5). An optical fiber function as ________ Single ridged waveguide Rectangular ridged waveguide Cylindrical ridged waveguide None of the above None Hint 6). Does optical fiber communication mean transferring information in the form of light? True False None Hint 7). The bandwidth in fiber optical communication is represented in terms of ________ Wavelengths Frequencies Both a and b None of the above None Hint 8). An optical communication operates within a range of __________ 800nm-1900nm 800nm-2000nm 800nm-1500nm 800nm-1700nm None Hint 9). If bandwidth in optical fiber communication converted in terms of frequencies then those frequencies are the range of ________ MegaHertz Gega Hertz Terra Hertz None of the above None Hint 10). In optical fiber communication, the information is transfer in the form of light with the help of ________ Coaxial cable Waveguide Optical fiber cable None of the above None Hint 11). The light signal consists of _______ Infrared rays Visible light rays Ultraviolet rays X and gamma rays All of the above None Hint 12). The audio frequency range is from _______ 10Hz-20KHz 20Hz-20KHz 5Hz-20KHz 30Hz-40KHz None Hint 13). The wavelength of audio is about _________ 10Km 100Km 1Km 5Km None Hint 14). An optical frequency rage starts from _______ 90THz-1000THz 100THz-1000THz 120THz-1000THz 150THz-1000THz None Hint 15). The technology which is used in first-generation communication is gallium arsenide semiconductor? True False None Hint 16). In a first-generation communication system, the operating region is near _____ 1.0 Micrometer 1.8 Micrometer 0.8 Micrometer 2.0 Micrometer None Hint 17). In a first-generation communication system, the bit rate is about _____ 50Mbps 60Mbps 45Mbps 80Mbps None Hint 18). In a first-generation communication system, the repeater spacing is in the range of _____ 8Km 18Km 5m 10Km None Hint 19). In a second-generation communication system, the bit rate is about _____ 1000Mbps 600Mbps 450Mbps 800Mbps None Hint 20). In a second-generation communication system, the repeater spacing is in the range of _____ 8Kms 18Kms 50Kms 10Kms None Hint 21). The wavelength of second-generation communication system is around __________ 1.3 µm 2.3 µm 3.3 µm 4.3 µm None Hint 22). In a third-generation communication system, the bit rate is about _____ 1000Mbps 600Mbps 10Gbps 800Mbps None Hint 23). In a third-generation communication system, the repeater spacing is in the range of _____ 8Kms 18Kms 50Kms 100Kms None Hint 24). The wavelength of a third-generation communication system is around __________ 1.3 µm 155 µm 120 µm 4.3 µm None Hint 25). In a fourth-generation communication system, the bit rate is about _____ 1000Mbps 600Mbps 10Tbps 800Mbps None Hint Optical Fiber Communication Important Questions With Hints 26). In a fourth-generation communication system, the repeater spacing is in the range of _____ >8Kms >18Kms >10,000Kms 100Kms None Hint 27). The wavelength of fourth-generation communication system is around __________ 1.62 µm 155 µm 120 µm 4.3 µm None Hint 28). Which technique is used in a fourth-generation communication system? TDM technique FDM technique WDM technique None of the above None Hint 29). Which technique is used in a fifth-generation communication system? TDM technique FDM technique WDM technique Ruman amplification technique None Hint 30). The bandwidth of copper wire communication is very low compared to fiber optic communication? True False None Hint 31). How many types of optical fibers are there? One Two Three Four None Hint 32). What is the standard form of OTDR? Orthogonal Time Domain Reflectometer Orthogonal Time Dispersion Reflectometer Optical Time Domain Reflectometer None of the above None Hint 33). In the fifth-generation communication system, the bit rate is about _____ 1000Mbps 40-160Tbps 10Gbps 800Mbps None Hint 34). In a fifth-generation communication system, the repeater spacing is in the range of _____ 8Kms 18Kms 50Kms 3500Kms None Hint 35). The wavelength of fifth-generation communication system is around __________ 1.5 µm 155 µm 120 µm 4.3 µm None Hint 36). An optical time-domain reflectometer used to find ___________ Cable fault position Cable length Both a and b None of the above None Hint 37). What is the standard form of SONET? Single Optical Network Single Orthogonal Network Synchronous Optical Network None of the above None Hint 38). What is the standard form of SDH? Single Digital Hierarchy Synchronous Digital Hierarchy Asynchronous Digital Hierarchy None of the above None Hint 39). The SONET functions are based on ______ system TDM WDM TDM None of the above None Hint 40). How many devices are there in SONET? One Two Three Four None Hint 41). What is the standard form of STS? Signal Transport System Synchronous Transport System Asynchronous Transport System None of the above None Hint 42). The SONET regenerators function as which layer? OSI model layer Data link layer Physical layer None of the above None Hint 43). How many rows does the SONET frame consist of? Four Eight Ten Nine None Hint 44). The first three bytes in the SONET frame are _____ Transport overhead Section overhead Line overhead None of the above None Hint 45). The transport overhead in the SONET frame divided into how many categories? One Two Three Four None Hint 46). In the SONET frame out of nine rows, three rows are ________ Transport overhead Section overhead Line overhead None of the above None Hint 47). In the SONET frame out of nine rows six rows are ________ Transport overhead Section overhead Line overhead None of the above None Hint 48). In the SONET frame 87 bytes of 9 rows are ________ Transport overhead Section overhead Line overhead Information payload None Hint 49). The SONET frame consists of _________ 27 bytes of administrative overhead 783 bytes of information Both a and b None of the above None Hint 50). The section overhead in administrative overhead is for _______ Error monitoring Framing Management of functions All of the above None Hint Optical Fiber Communication Important Questions for Quiz 51). The SONET frame period is around ___________ 125 µs 130 µs 150 µs 190 µs None Hint 52). The line overhead in the SONET frame provides ______ Synchronization Multiplexing Protection switching All of the above None Hint 53). The data rate of the SONET frame is around ________ 50.122 Mbps 60.122 Mbps 70.122 Mbps None of the above None Hint 54). ______ are the applications of SONET Used as a carrier for ATM cells, ISDN, BISDN Used as a carrier for bandwidth, cable tv networks Both a and b None of the above None Hint 55). What is the standard form of DWDM? Dense Wavelength Division Multiplexing Division Wavelength Dense Multiplexing Dense Wavelength De-multiplexing None of the above None Hint 56). What are the major issues in optical communication? Attenuation Dispersion Both and b None of the above None Hint 57). The problem of signal attenuation in optical communication solved by _______ FDMA CDMA TDMA EDFA None Hint 58). What are the components of DWDM? Laser transmitters, highly sensitive receivers EDFA, OADM Mux, Demux All of the above None Hint 59). How many types of DWDM networks are there? One Two Three Four None Hint 60). ________ is an advantage of DWDM Handles higher data rate Increases the channel bandwidth capacity Both a and b None of the above None Hint 61). What is the standard form of OADM? Optical Add/Drop Multiplexer Optical Analog/Digital Multiplexer Orthogonal Add/Drop Multiplexer None of the above None Hint 62). How many types of OADM networks are there? One Two Three Four None Hint 63). What is the standard form of WDM? Wavelength Diode Multiplexing Wavelength Division Multiplexing Wavelength Diode demultiplexing None of the above None Hint 64). ___________ are the components of WDM Optical Line Terminals Optical Add/Drop Multiplier Optical Cross Connect All of the above None Hint 65). What are the technologies available in the WDM network? Thin-film filter, arrayed waveguide grating Fused fiber coupler, interleaver Both a and b None of the above None Hint 66). ___________ are the important features of WDM network Wavelength reuse and conversion Transparency, circuit switching Survivability All of the above None Hint 67). An optical circulator is a ______ terminal device Single Double Multiple None of the above None Hint 68). An optical isolator is a ______ terminal device Single Double Multiple None of the above None Hint 69). The birefringent wedge in an optical isolator is made up of a _______ Glass Copper Silver Calcite crystal None Hint 70). The faradays rotator in an optical isolator, the rotation is based on _______ parameter Magnetic field density in the material Length of rotator Material magnetic constant All of the above None Hint 71). How many types of optical couplers are there? One Two Three Four None Hint 72). The evanescent wave and twistedpair couplers are two ____________ types of coupler Diffusion Area splitting Beam splitting None of the above None Hint 73). In which type of coupler the optical fibers are twisted? Twisted-pair coupler Area splitting Beam splitting None of the above None Hint 74). How many types of ruman amplifiers are there? One Two Three Four None Hint 75). In which ruman amplifier the pump signal and input signal wavelength are mixed in an optical cable? Distributed ruman amplifier Lumped ruman amplifier Both and b None of the above None Hint Optical Fiber Communication Important Questions for Exams 76). In the ruman amplifier the amplification depends on _______ Fiber length Fiber attenuation Core diameter All of the above None Hint 77). The fiber in EDFA is heavily doped with _________ Barium ion Gallium ion Erbium ion None of the above None Hint 78). An EDFA works based on which concept? Photoelectric emission Thermionic emission Electron emission Stimulated emission None Hint 79). The EDFA operates in __________ band C-band L-band Both a and b None of the above None Hint 80). The EDFA used in ___________ Optical fiber subscriber network WDM system CATV system All of the above None Hint 81). Optical amplifiers are of ______ types One Two Three Four None Hint 82). In an optical communication system, the system performance can be identified by using ______ analysis Power budget analysis Rise time budget analysis Both a and b None of the above None Hint 83). The budget analysis which is used to determine the optical link dispersion limitation is known as ________ Power budget analysis Rise time budget analysis Both a and b None of the above None Hint 84). How many basic elements are there in the rise time budget analysis? One Two Three Four None Hint 85). Which rise time budget analysis depends on the source of light and driving circuit? Transmitter rise time b) c) d) Receiver rise time Model dispersion rise time None of the above None Hint 86). ____________ rise time based on photodetector Transmitter rise time Receiver rise time Model dispersion rise time None of the above None Hint 87). The point of point link of optical fiber communication system consists of ________ One transmitter One receiver One channel All of the above None Hint 88). The channel parameters based on optical fiber in point to point link __________ Core size, numerical aperture Bandwidth, attenuation Core refractive index All of the above None Hint 89). What are the transmitter parameters in point to point link optical fiber communication system? Emission wavelength Spectral linewidth Effective radiation area All of the above None Hint 90). The performance of the digital receiver in an optical system can be evaluated by ________ BER Sensitivity Quantum limits All of the above None Hint 91). The gain in pin photodiode is always __________ Gain<1 Gain>1 Gain<2 Gain>2 None Hint 92). The pin photodiode has ______ noises Shot noise Photon noise Johnson noise Generation recommendation noise All of the above None Hint 93). The avalanche photodiode have _______ Shot noise Photon noise Johnson noise Avalanche noise None Hint 94). Why the output current is very less in the case of conventional and pin photodiodes Gain<1 Gain>1 Gain<2 Gain>2 None Hint 95). To obtain high current and high gain _______ is used Conventional photodiode PIN photodiode Avalanche photodiode None of the above None Hint 96). Which material is used in avalanche photodiode? Copper Silver Gallium Silicon None Hint 97). ____________ is an advantage of avalanche photodiode Gain is high Operating voltage is high Noise is high All of the above None Hint 98). The resistivity range in PIN photodiode is from __________ 100Ω/cm to 1000 kΩ/cm 150Ω/cm to 1000 kΩ/cm 180Ω/cm to 1000 kΩ/cm 200Ω/cm to 1000 kΩ/cm None Hint 99). What is the main disadvantage of pin photodiode? Very low reverse bias is necessary High quantum efficiency Large bandwidth can be obtained Doesn’t amplify the signal None Hint 100). The ratio of the number of newly generated charge carriers by the number of incident photons is known as _________ Responsivity Internal quantum efficiency External quantum efficiency None of the above None Hint 101). The number of electron-hole pair generated with respect to the number of photons observed is known as _________ Responsivity Internal quantum efficiency External quantum efficiency None of the above None Hint 102). The ratio of detector output to detector input is known as ___________ Responsivity Internal quantum efficiency External quantum efficiency None of the above None Hint 103). When light is not falling on photodetector then it is known as __________ Responsivity Internal quantum efficiency External quantum efficiency Dark current None Hint 104). The photodiode is a_________ device One terminal Two terminal Three terminal Multiple terminals None Hint 105). What is the working principle of a photodiode? Converts light signal to electrical signal Converts electrical signal to light signal Converts light signal to electronic signal None of the above None Hint Read more about Diodes 106). Why connectors are used? To join optical sources To join detectors with optical fibers Both a and b None of the above None Hint 107). What are the major criteria behind the connectors? Reduce losses Increase losses Reduce gain None of the above None Hint 108). The fiber splices are used to connect __________ optic cables permanently One Two Three Multiple None Hint 109). What are the basic requirements of fiber splices? Splices should cause minimum power loss They should be easy to install It should cause a low attenuation It should be strong and having lightweight All of the above None Hint 110). How many types of techniques are there in fiber splicing? One Two Three Four None Hint 111). What is the main advantage of fusion splicing? Attenuation is low Gives high quality of joint Size of the splice are small All of the above None Hint 112). What are the disadvantages of fusion splicing? Fiber will get weak Tensile strength of fiber decreases Tensile strength of fiber increases Both a and b None Hint 113). In which type of splicing the fiber are aligned and then they are locked in position using various positioning devices? Mechanical splicing Fusion splicing None Hint 114). How many types of splices are there in mechanical splicing? One Two Five Six None Hint 115). What are the losses generated when we do fiber-to-fiber joints? Core and misalignment Gap and angular losses Losses due to difference in diameter All of the above None Hint 116). Which lensing scheme of optical fiber made up of epoxy or adhesive material? Integrated lens Spherical lens Imaging sphere lens coupling All of the above None Hint 117). The distributed feedback laser is used to generate signal with ___________ Single-frequency Double frequency Multiple frequencies None of the above None Hint 118). What is the standard form of LASER? Low Amplifier by Simple mission of Radiation Light Amplification by Simulated mission of Radiation Light Amplifier by Simple mission of Radiation None of the above None Hint 119). The first laser built by ________ Theodore H.maiman E.A.Johnson Harald Hass None of the above None Hint 120). _________ are the properties of laser Spectral width is very narrow Line width of light by laser is very narrow Directivity, the intensity of the beam, quantum efficiency are high All of the above None Hint 121). In case of laser ______ The efficiency is high Response time is fast Data rate is high All of the above None Hint 122). The spectral width in LED’s is _______ Broad Very narrow Narrow None of the above None Hint 123). In laser ______ Distortion and dispersion is less Heating problem is more Used for long-distance All of the above None Hint 124). The edge-emitting LED consists of _______ Single optical guiding layer Double optical guiding layer Three optical guiding layer Four optical guiding layer None Hint 125). The main disadvantage of using edge-emitting LED is _________ Has high radiance Beam divergence is narrow It couples more optical power All of the above None Hint Optical Fiber Communication Important Questions for Interviews 126). _______ is an important property of surface-emitting LED High radiance and low terminal impedance is obtained Coupling efficiency is increased Both a and b None of the above None Hint 127). What is the disadvantage of using surface-emitting LEDs? Lifetime is low Modulation bandwidth is low Modulation bandwidth is high Both a and b None Hint 128). If a PN junction is made from two mixture of the same type of atoms then it is called as ___________ Homojunction LED Heterojunction LED None Hint 129). If a PN junction is made from two dissimilar layers of atoms then it is called as ___________ Homojunction LED Heterojunction LED None Hint 130). The homojunction LED is also called as _______ Edge junction LED Heterojunction LED Surface-emitting LED None of the above None Hint 131). The heterojunction LED is also called as _______ Edge junction LED Homojunction LED Surface-emitting LED None of the above None Hint 132). The quantum efficiency of a LED is defined as a ratio of _________ Number of photons emitted out/ Number of photons injected in Number of photons injected out/ Number of photons emitted in Number of photons emitted out*Number of photons injected in None of the above None Hint 134). Why quantum efficiency of LED is very less? Nature of material used Change in reflective index Angle mode by emitted photons All of the above None Hint 135). The irradiance of LED is defined as a ______ Power output/Area Area/ Power output Power output*Area None of the above None Hint Read more about LED 136). The mode of optical fiber are categorized into _____ One Two Three Four None Hint 137). In a single mode of optical fiber _____ Bandwidth is higher (1000mHz) Haul communication is long V number is less than 2.405 All of the above None Hint 138). In a multi-mode of optical fiber _______ Bandwidth is low (50mHz) Used for short-distance communication V number is greater than 2.405 All of the above None Hint 139). In multimode step-index fiber the index will change from __________ Core to cladding Cladding to core Index change gradually None of the above None Hint 140). In multimode graded-index fiber the index will change from __________ Index will change as a step Cladding to core Index change gradually from core to cladding None of the above None Hint 141). In a multimode graded-index fiber the fibers are available with bandwidth from ________ 100MHz to 370MHz 10MHz to 370MHz 100MHz to 400MHz None of the above None Hint 142). In a multimode step-index fiber the signal propagates with _________ Zigzag path Predictable path Both a and b None of the above None Hint 143). In a multimode graded-index fiber the signal will follow _________ Zigzag path Predictable path Both a and b None of the above None Hint 144). The dimensions of core for multimode step-index fiber is around _______ 100 to 500 µm 50 to 500 µm 125 to 400 µm None of the above None Hint 145). The dimensions of core for multimode graded-index fiber is around _______ 100 to 500 µm 50 to 100 µm 125 to 400 µm None of the above None Hint 146). The ratio of the velocity of light in the air by the velocity of light in a medium is known as _________ Step index fiber b) c) d) Graded index fiber Refractive index fiber None of the above None Hint 147). When ray enters from denser to rarer medium with the refracted angle of 90 degrees the angle of incident is known as ________ Critical angle Acceptance angle Snells law None of the above None Hint 148). How many types of rays are there in an optical fiber? One Two Three Four None Hint 149). The fiber fabrication for mass production has the following steps? Fabrication of fiber capillaries, perform stacking Perform stacking, drawing perform in cane Fabrication of fiber capillaries, perform stacking, drawing perform in cane, and drawing cane into fiber None of the above None Hint 150). How many methods are there in fiber fabrication? One Two Three Five None Hint Optical Fiber Communication Important MCQ’s 151). What is the standard form of OVPO? Outside Vapor Phase Oxidation Orthogonal Vapor Phase Oxidation Outside Vapor Plasma Oxidation None of the above None Hint 152). What is the standard form of VAD? Vapor Plasma Axial Deposition Vapor Phase Axial Deposition Vapor Photonic Axial Deposition None of the above None Hint 153). _______ are the correct steps that we have to follow in the OVPO fiber fabrication process Soot perform, perform sintering, soot deposition, fiber drawing Soot deposition, soot perform, perform sintering, fiber drawing Fiber drawing, soot perform, perform sintering, soot deposition None of the above None Hint 154). Which fabrication method has less pollution? OVPO VAD PCVD None of the above None Hint 155). What are the advantages of vapor-phase axial deposition? Both step and graded index can be made by VAD method Used to fabricate continuous length fiber Gives very less pollution during fabrication All of the above None Hint 156). Holey fiber is the nickname of ____________ fabrication OVPO VAD PCVD PCFF None Hint 157). The photonic crystal fiber categorized into ______ One Two Three Four None Hint 158). Which fabrication method is also known as micro-structured fiber? OVPO VAD PCVD PCFF None Hint 159). What are the advantages of the double crucible method for fiber fabrication? Rate of production high No dimension restriction Has higher glass composition All of the above None Hint 160).What are the disadvantages of the double crucible method for fiber fabrication? Purity of glass is high Purity of glass is low Absorption loss is high Both b and c None Hint 161). In glass fibers ________ Attenuation loss is less Mechanical handling is difficult Less flexible All of the above None Hint 162). In plastic fibers _________ Temperature range is less Used for a short distance Attenuation loss is more All of the above None Hint 163). What is the standard form of MCVD? Modified Crystal Vapor Deposition Modified Chemical Vapor Deposition Modified Crystal Vapor Decomposition None of the above None Hint 164). The core of the plastic fiber is made up of __________ Silicon oxide Polymethyl methacrylate Silicon nitride None of the above None Hint 165). The core of the glass fiber is made up of __________ Silicon oxide Polymethyl methacrylate Silicon nitride None of the above None Hint 166). How many channels does T1 multiplexer consist of _______ 24 channels 28 channels 29 channels None of the above None Hint 167). The window range of the first fiber optic is around _______ 800-900nm 600-900nm 700-900nm 500-900nm None Hint 168). The window range of the second fiber optic is around _______ 800-900nm 600-900nm 1260-1360nm 500-900nm None Hint 169). The operating wavelength of the first fiber optic window is round ___________ 850nm 6nm 1260nm 5nm None Hint 170). The operating wavelength of the second fiber optic window is round ___________ 850nm 1310nm 1260nm 5nm None Hint 171). The attenuation is expressed in ______ Decibels Nanometers Micrometers None of the above None Hint 172). How many factors on which attenuation is depending? One Two Three Six None Hint 173). Dispersion factor in attenuation is categorized in to ________ One Two Three Five None Hint 174). What is the standard form of PCVD? Photonic Chemical Vapor Deposition Phase Chemical Vapor Deposition Plasma Chemical Vapor Deposition None of the above None Hint 175). The window range of the third fiber optic is around _______ 800-900nm 600-900nm 1260-1360nm 1500-1600nm None Hint Optical Fiber Communication Important MCQ’s with Hints 176). The operating wavelength of the third fiber optic window is round ___________ 850nm 1310nm 1260nm 1550nm None Hint 177). Which one is a type of dispersion? Intrinsic Extrinsic Chromatic None of the above None Hint 178). What is the major factor that is responsible for material absorption loss? Intrinsic absorption due to basic atoms of fiber material Extrinsic absorption due to impurity atoms Absorption due to atomic defects in the glass material All of the above None Hint 179). The fiber bending loss are of ________ One Two Three Five None Hint 180). If banding of fiber radius is more than the radius of core of fiber then this banding is known as ____________ Microscopic bending loss Micro bending loss None Hint 181). _________ are the linear scattering types Mie and Rayleigh Scattering Stimulated Brillouin Scattering Stimulated Raman Scattering None of the above None Hint 182). ________ are the non-linear scattering types Mie and Rayleigh scattering Stimulated Brillouin Scattering Stimulated Raman Scattering Both b and c None Hint 183). What is the standard form of PCFF? Plasma Crystal Fiber Fabrication Photonic Crystal Fiber Fabrication Plasma Crystal Fixed Fabrication None of the above None Hint 184). In which scattering the light from the sun scattered in the atmosphere to give the sky color blue? Rayleigh Scattering Stimulated Brillouin Scattering Stimulated Raman Scattering None of the above None Hint 185). Which scattering takes place in a forward or backward direction? Rayleigh scattering Mie scattering Non-linear scattering None of the above None Hint 186). When the scattered photons lose their energy then it is known as _________ Antistokes shift Stokes shift Group velocity None of the above None Hint 187). When the scattered photons gain their energy then it is known as ________ Antistokes shift Stokes shift Group velocity None of the above None Hint 188). _________ are the types of intramodal dispersion Extrensic and intrensic Chromatic Material and waveguide None of the above None Hint 189). The dispersion losses are of ________ One Two Three Four None Hint 190). What are the optical fiber measurements? Numerical aperture, refractive index profile Mode field diameter, cut off wavelength Transmission and band loss All of the above None Hint 191). What are the major components in carrier wave communication? Source, receiver Receiver, communication channel Source, communication channel, and receiver None of the above None Hint 192). The communication channel in carrier wave communication is ________ Atmosphere Electric lines Wireless network Optical fiber All of the above None Hint 193). What do we require for a reliable communication system? Distortion should be minimum Noise should be very little Both a and b None of the above None Hint 194). What are the signals that are used to modulate high-frequency electromagnetic waves? Radio wave Microwave Lightwave All of the above None Hint 195). The bit rate requirement for telecommunication is around? 70Kb/s 64Kb/s 87Kb/s 71Kb/s None Hint 196). The bit rate requirement for standard TV? a) 70Kb/s 100Kb/s 100Mb/s 71Kb/s None Hint 197). The bit rate requirement for HMTV? 70Kb/s 100Kb/s 100Mb/s 1.2Gb/s None Hint 198). The data rate of microwave communication (mobile network) ________ 0Kb/s 100Kb/s 100Mb/s 1.2Gb/s None Hint 199). What are the advantages of a fiber optic communication system over a conventional communication system? Long life No risk of fire and sparks No radio frequency or electromagnetic interference All of the above None Hint 200). The optical modulation bandwidth of diode laser is around _________ ˷3GHz ˷4GHz ˷5GHz ˷6GHz None Hint Read more about Optical Fibers Time's up
