in dynamic channel assignment strategy mcq

d. 116 users, a. 1 and 2 are correct Q4. b. b. Increased immunity to jamming b. This results in optimum utilization of network resources. 2. d. All the four are correct, 1. b. a. Simplex systems c. 30 KHz d. All are correct, a. Gets transferred to another cell b. Propagation along the ground surface, a. The power received by the mobile station from other base station is more than the serving base station Voice channels are not permanently assigned. b. 2. In a dynamic channel assignment strategy, - Published on 17 Nov 15. a. c. Decreasing the S/N ratio at the antenna input c. Digital European Cordless Telephone b. 4. c. 2 and 3 are correct d. All are correct, 61)   The rainbow pattern seen on a CD is an example of, a. Mcq's 3,485 views. Increase in radio spectrum d. All of the above. c. 2 and 3 are correct Multiple users on single channel d. 2 and 3 are correct, 63)   When a wave falls on a perfect conductor, a. d. Both a and c, ANSWER: All incident energy is reflected back without loss of energy, 64)   Brewster angle is the angle at which, a. b. e. Both a and c are correct, a. c. Hopping rate greater than or equal to information symbol rate d. All of the above, 58)   Distributed antenna systems are used at, a. Transmitters of mobile systems Mobile Internet b. b. Synchronization information 2. Noise developed at the receiver High traffic conditions d. None of the above. Coded sequence, a. Guard channel concept Fixed assignment is possible d. Both a and b c. Bandwidth of the signal Use of spatial locations of mobile units within the cell b. d. All of the above, ANSWER: Signal fading due to Doppler shift in the channel, 1. 2. Increasing the number of base stations & reusing the channels c. Envelope detection, encoding, sampling, multiplexing Advantage of using dynamic channel assignment is, Q9. c. Low earth orbit satellites PN sequence for modulation c. Channel allocation for transmission Time diversity d. Both b and c c. 1, 2 and 3 are correct When a fraction of assigned channel is reserved for handoffs, it is, Q14. Explanation: Dynamic channel assignment requires the MSC to collect real time data on channel occupancy, traffic distribution and RSSI of all channels on continuous basis. More than one frequency hop during each symbol 3. d. The spectrum acquired by the noise between the signal, ANSWER: The small unused bandwidth between the frequency channels to avoid interference, 1. March 11, 2020 3. This set of Wireless & Mobile Communications Multiple Choice Questions & Answers (MCQs) focuses on “Channel Assignment Strategies”. d. None of the above, 102)   Advantage of using waveform coders is, 1. 4. c. Minimum time for change in magnitude and phase of the channel b) Restricted Signal Strength Indicator b. b. a. Amplitude modulation d. < 2 GHz, 10)   Half duplex system for communication has, a. Communication in single direction c. Expressed in Erlang /MHz /km2 c. Same spectrum may be allocated to other network 3. 64 users Use of same frequency channel for same time slot c. MSC allocates the channel according to the predetermined algorithm 1 and 2 are correct View Answer Answer: Both a & b 59 In Handoff A New channel allocation is done. 4. d) base stations d. Both a and b Matched filter Time b. Refraction Gets blocked c. Increased spectral efficiency c) Cross talk Focused signal transmitted into narrow transmission beams I am an M.Tech in Electronics & Telecommunication Engineering. b. 1, 2 and 3 are correct c. Maximum Likelihood Sequence Estimation, a. 4. 1 and 3 are correct d. All of the above, 53)   Co-channel reuse ratio depends upon, a. Radius of the cell a) Queued Multi transmission in one time slot, a. d. David Bohm, 3)   The early FM push-to-talk telephone systems were used in, a. Simplex mode c. Irrespective of the location of the user 2. In mobile assisted handoff (maho), the handoff takes place when, a) the power received by the mobile station from other base station is more than the serving base station, b) The channel allocated is not available, Q18. Is a function of transmitting and receiving antenna gain c. One or more symbols transmitted between frequency hops d. Forward channel, a. Wireless concept of making calls c. The wave gets refracted in the direction of source (a) If the v oice channels are not allocated permanently in a c ell, it will be called as dynamic channel assignm ent. 1, 2 and 3 are correct Trunking in a cellular network refers to, c) accommodating large number of users in limited spectrum, Q20. c. AT&T Bell Laboratories In dynamic channel assignment strategy, base station requests channel from ____________ 1. Fixed b. View Answer, 6. In fixed channel assignment strategy, each cell is allocated a predetermined set of _______ Independent of the signal source 3. c. Frequency divider Received power increases with gains of transmitting and receiving antennas, 1. 3. b. Low frequency bands of speech Direct RF pulse system c. Waiting for channel allocation b. Welch window d. All of the above, ANSWER: Assigning different group of channels, 26)   Radio capacity may be increased in cellular concept by, a. c. 1, 2 and 3 are correct Blocking is reduced d. Digital European Cellular Telephone, ANSWER: Digital European Cordless Telephone, 5)   World’s first cellular system was developed by, a. Nippon Telephone and Telegraph (NTT) Linear filters d. All of the above, ANSWER: Focusing radio energy towards ground, 60)   Diffraction, at high frequencies, depends upon, 1. Every user stays at a certain narrowband channel at a specific time period Increases with square of the distance between the transmitter and receiver 3. b. To eliminate ISI 35)   In a dynamic channel assignment strategy, a. c. Flat fading Half duplex mode d) All of the above . c. Frequency translation methods 2. Computational complexity d. All four are correct, a. The signal is transmitted using multiple channels 3. ANSWER: Nippon Telephone and Telegraph (NTT) Wave is partially reflected and partially transmitted d. Demand access protocol, 140)   The increase in number of users in PURE ALOHA causes, a. Polarization diversity, a. 4. b. b) Dynamic. 4. Digital European Cellular Telex Missed calls 3. b. D None of the above. a. Using same communication medium 1 and 2 are correct Large coherence time of the channel as compared to the delay constraints d. All of the above, 51)   Interference in cellular systems is caused by, a. b. CDMA b. The dynamic channel allocation schemes can be divided into three categories −. 2. Pitch detection is not required Focusing radio energy towards ground View Answer, 5. Fixed B. d. Both a and c are correct, ANSWER: One or more symbols transmitted in time interval between frequency hops, a. In a fixed channel assignment strategy, if all the assigned channels are occupied, the call, Q6. Mobile assisted handoff (maho) provides, c) Msc need not monitor the signal strength, Q19. Learn more. A call within the cell c. Signal is transmitted with different polarization Equalizer structure c. Small coherence time of the channel as compared to the delay constraints Send numeric messages Signal fading due to Doppler shift in the channel c. Multiplexed signals d. Frequency non selective fading, 149)   The power delay profile helps in determining, a. View Answer, 4. 33) In a fixed channel assignment strategy, if all the assigned channels are occupied, the call. Interference rejection capability d. None of the above, 154)   The received signal from a multipath channel is expressed as, a. Convolution of transmitted signal and impulse response Copyright © 2020 | Competitive Online Exam Preparation I All Rights Reserved COEP, b) The traffic carried per cell divided by the bandwidth of the system and the area of a, a) the power received by the mobile station from other base station is more than the, examinations. 2. Smart antennas pointing towards mobile stations They are among low bit rate vocoders, a. a) True Random access protocol ISI is lesser, a. b) Borrowing channels from neighbouring cluster Slow fading 4. d. Both a and b are correct c. Directly proportional to square of Doppler spread b. CDMA/FDD b) False Different phase, 152)   The effects of small scale multipath propagation are, 1. Smart antenna technology Use of same frequency channel for different time slot No reflection occurs at the first medium c. 2 and 4 are correct d. Coder and decoders have predetermined set of codes, ANSWER: The residue of subtraction of generated and original signal is quantized at the transmitter, 111)   The speech sequence in GSM Codec consists of, a. Pre emphasis, segmentation, windowing, filtering c. Both a & b Fingers Increased capacity a) True Ideal for students preparing for semester … d. Hamming window, 113)   The received signal at the GSM speech decoder is passed through, a. STP filter Mobile and Wireless Communication d. All of the above, 14)   IMT-2000 is a digital mobile system that functions as, a. Pager Share ; Like ... call gets blocked if all the channels of the cell are occupied d. All of the above ANSWER: All of the above 35) In a dynamic channel assignment strategy, a. e. Both a and b, 151)   Small scale multipath propagation is caused due to waves with, 1. d. Modulated signals, 108)   Linear predictive coders are based on the principle that, 1. Mobile station battery consumption is low Frequency non selective fading b. Estimation of transmitted signal, correlator, demodulation, bit decision e. Both a and c, a. Transversal filter 3. 100+ Multiple Choice Questions and Answers on Strategic Management (MCQs). 3. 2 and 3 are correct In dynamic channel assignment strategy, voice channels are allocated to different cells permanently. 0, Electronic Engineering MCQ Question Papers: ENTC, IT Interview Placement, Part 4: List for questions and answers of Mobile Communication, Q2. d) both a) and b) Q5. b. Variation in amplitude and phase at receiver, a. d. All of the above, 34)   In a fixed channel assignment strategy, a. d. Both a and b c. Regular b. Multiple users occupy different spectrum at a time, 1. d. PLL, 114)   In GSM Codec, the bits encoded for forward error correction are, a. Ia bits 3. d. FSK. b. c. Full duplex systems Short Messaging Service Frequency modulation Assumptions for Dynamic Channel Allocation. What happen to a call in fixed channel strategy, if all the channels in a cell are occupied? b. c. The queue may be provided d) Delayed d. All of the above, ANSWER: Number of operations for one iteration of algorithm, 90)   The algorithms acquired for adaptive equalization are, 1. Static Channel Allocation in computer network. Business Management Ideas Essays, Research Papers and Articles on Business Management Huge Collection of Essays, Research Papers and Articles on Business Management shared by visitors and users like you.

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