Frequency Division Multiple Access Question and Answers June 23, 2022 By WatElectronics This article lists 50 Frequency Division Multiple Access MCQs for engineering students. All the Frequency Division Multiple Access 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 Frequency Division Multiple Access. FDMA refers to Frequency division multiple access, which is a channel access technique used in multiple access protocols. FDMA is different from Frequency division duplexing(FDD). Duplexing is shared between uplink and downlink transmissions. In FDMA, each user shares the same frequency channel, each user transmits at a single frequency. The channel access technique takes place in the data link layer. It can use both analog and digital signals. The data transfer mode is continuous. Compared with TDMA and CDMA, FDMA requires high-performance filters. FDMA is the division of frequency bands allocated for communication channels. In FDMA, Synchronization is not necessary. For reducing crosstalk between the channels guard bands are required between adjacent signals. Cost is less due to design complexity being low. Mostly widely used in Mobile communications, Telecommunications, GSM,2G, TACS, and also bit rate increases. 1). FDMA Stands for _______? Frequency division multiple access Frequency direct mission access Frequent direct mission access None of these None Hint 2). FDMA is the division of _____ bands allocated for communication channels. Time Frequency Wavelength Bandwidth None Hint 3). Each channel has been assigned with ___ user at a time? Multiple Two One Dual None Hint 4). FDMA is a _____ access method? Bandwidth Channel Wideband Frequency None Hint 5). Bandwidth sharing takes place among _____ stations? Unique Similar Different None Of these None Hint 6). _____ is not required in FDMA? Bandwidth Codeword Frequency Time None Hint 7). In FDMA, the ______ is not necessary? Bandwidth Efficiency Synchronization None Hint 8). In FDMA, the mode of data transfer is _____ signal? Different Continuous Wide Band Pass band None Hint 9). While compared with TDMA, FDMA is ____ flexible. More Little Complex Highly None Hint Read more about TDMA 10). Rate of data is _____ in FDMA? High Low Medium None of these None Hint 11). To minimize ____ between the channels, guard bands are required between adjacent signals? Crosstalk Width Time Frequency None Hint 12). Because of efficient use of numerical code it increases the _____? Time Work Capacity None of these None Hint 13)._____ is not necessary for FDMA? Equalization Normalization Triggering None of these None Hint 14). Number of bits required is ___ for synchronization and framing? More Less High None of these None Hint 15). Because of the less complex design, the ______ is less? Cost Temperature Voltage Time None Hint 16)._____ is also less due to reduced cost? Intersymbol Interference Temperature Measuring Compatible None Hint 17). Per-channel, maximum flow rate is ____ and short. Varies Fixed Positioned Moves None Hint 18). Capacity improvement depends upon ______ ratio? INR SNR IRS SSN None Hint 19).Expand SIR full form _______? Signal to Noise Ratio Signal to Idea ratio Signal to Interference Ratio None of these None Hint 20). Guard bands guide to _____ of capacity? Rich Waste High Range Change None Hint 21). Generally Frequency division multiple access uses _____ signal? Continuous Digital Analog Passband None Hint 22). Compared with TDMA and CDMA, FDMA requires high performance ______? Bandwidth Amplitude Transistors Filters None Hint 23). In FDMA, the near-to-far problem is not _____ to CDMA? Complex Sensitive Easy None of these None Hint Read more about Difference between GSM and CDMA. 24). What is the full form of FDD______? Frequency division duplexing Frequency division distant Final division Duplexing None of these None Hint 25). In FDMA, all users share the ____ frequency channels simultaneously? Different Unique Same Reliable None Hint Frequency Division Multiple Access Quiz Questions and Answers. 26). First demand assignment satellite was developed by ____? SAT COMSAT SAT-9 DSC SAT None Hint 27). There exist ___ techniques for channels per carrier. One Two Three None of these None Hint 28). MCPC Stands for ________? Multi-Channel per-carrier Multi-carrier per-channel Multiple-carrier propagate channel None of these None Hint 29). FDMA supports demand and ____ assignment? Channel Variable Fixed Return None Hint 30). SCPC Stands for ________? Single-Channel per-carrier Sudden-carrier per-channel Single-carrier propagate channel None of these None Hint 31). During uplink, _____ coordination is needed to prevent suppression of weaker signals? Receiving Transmission Rf Power None of these None Hint 32). SC-FDMA has been used as an _____ multiple access scheme in LTE Systems? Downlink Uplink Tri-Link None of these None Hint 33). OLO Stands for _____? Optical local oscillator Optical Light organizer Organized little oscillator None of these None Hint 34).____ detection can precisely extract a frequency subchannel from the FDMA channel? Digital Coherent Direct Receivers None of these None Hint 35).TACS stands for ____? Total access communication systems Total assigned control systems Two access communication systems None of the above None Hint Frequency Division Multiple Access Interview Questions and Answers 36). Random changes in the ____ are not allowed in FDMA? Bandwidth Capacity Frequency Time None Hint 37). GSM uses the ____ technique along with TDMA? WDMA CDMA FDMA None of these None Hint 38). If the ___ channel is assigned in FDMA, the mobile unit and base station will transmit continuously? Multiple Access Single Access Voice Distinct None Hint 39). The ____ time is large in comparison with the delay spread? Rise Delay Symbol None Hint 40). For overhead purposes, ____ transmission is required? Different Continuous Relay None Hint Frequency Division Multiple Access MCQs for Exams 41). FDMA Channel uses ___ phone circuit at any instant of time? Two One Multiple None of these None Hint 42). FDMA has about ___ kHz of narrow bandwidth? 20 10 30 40 None Hint 43). FDMA combines with _____ for duplexing? TDMA TDD FDD WDM None Hint 44). Demand access system requires ___ types of channels? One Two Three Four None Hint 45). If the user is allocated with a fixed channel, then the time of channel will be ____? Idle Start Demand Continuous None Hint 46). If the channel is in an idle state, then the utilization time is ____ in DAMA? More High Low Common None Hint 47). In FDMA, _____ adds cost, weight, and size to transmit and receive? Amplifiers Actuators Multiplexers Duplexer None Hint 48). To reduce Intermodulation, the ____ is required to reduce input power. Amplifiers Actuators Transponder Duplexer None Hint 49). FDMA is used for FM and ___ radio broadcasting? WM AM AM IM None Hint 50). Most widely used application of FDMA in ___ mobile communication? 1G 2G 3G 4G None Hint Please fill in the comment box below. Time's up
