Description : How many users or voice channels are supported for each 200 KHz channel in GSM? a) Eight b) Three c) Sixty four d) Twelve
Last Answer : a) Eight
Description : How many users are supported in IS-95 for each 1.25 MHz? a) Eight b) Sixty four c) Sixteen d) Twenty five
Last Answer : b) Sixty four
Description : The 2G GSM technology uses a carrier separation of _____________ a) 1.25 MHz b) 200 KHz c) 30 KHz d) 300 KHz
Last Answer : b) 200 KHz
Description : How is bandwidth increased in Cdma2000? a) Clubbing adjacent radio channels b) Changing the hardware of base stations c) Change of spectrum d) Change of RF equipment
Last Answer : a) Clubbing adjacent radio channels
Description : Which one of the following 2G standard is used in Japan? a) IS-136 b) GSM c) PDC d) AMPS
Last Answer : c) PDC
Description : IS-136 uses which modulation technique? a) π/4 DQPSK b) BPSK c) GMSK d) AFSK
Last Answer : a) π/4 DQPSK
Description : Popular 2G CDMA standard IS-95 is also known as ______________ a) CdmaOne b) CdmaTwo c) IS-136 d) IS-95B
Last Answer : a) CdmaOne
Description : Which of the following is a CDMA standard of second generation network? a) IS-95 b) IS-136 c) ETACS d) EDGE
Last Answer : a) IS-95
Description : Which one is not a TDMA standard of second generation networks? a) GSM b) IS-136 c) AMPS d) PDC
Last Answer : c) AMPS
Description : UMTS does not has backward compatibility with ____________ a) GSM b) IS-136 c) IS-95 d) GPRS
Last Answer : c) IS-95
Description : Which of the following leads to the 3G evolution of GSM, IS-136 and PDC systems? a) W-CDMA b) GPRS c) EDGE d) HSCSD
Last Answer : a) W-CDMA
Description : Wireless networks are extremely hostile and random nature of radio channel. a) True b) False
Last Answer : a) True
Description : In a simple economy of five producers and five consumers, there would be __________ transactions possible without an intermediary and __________ transactions possible with one intermediary. A)ten; twenty-five B)thirty; ten C)twenty-five; fifteen D)sixteen; eight E)twenty-five; ten
Last Answer : E)twenty-five; ten
Description : What is the minimum spectrum allocation required by W-CDMA? a) 5 MHz b) 20MHz c) 1.25 MHz d) 200 KHz
Last Answer : a) 5 MHz
Description : ____________ carries signalling and synchronizing commands. a) Traffic channels b) Control channels c) Signalling channels d) Forward channels
Last Answer : b) Control channels
Description : __________ carries digitally encoded user data. a) Traffic channels b) Control channels c) Signalling channels d) Forward channels
Last Answer : a) Traffic channels
Description : What is the channel symbol rate in Bluetooth for each user? a) 270.833 Kbps b) 1 Gbps c) 100 Mbps d) 1 Mbps
Last Answer : d) 1 Mbps
Description : How many users are supported by Cdma2000 1X in comparison to 2G CDMA standard? a) Half b) Twice c) Six times d) Ten times
Last Answer : b) Twice
Description : How much packet data rate per user is supported by W-CDMA if the user is stationary? a) 2.048 Kbps b) 100 Mbps c) 2.048 Mbps d) 1 Gbps
Last Answer : c) 2.048 Mbps
Description : What location management feature is supported by 4G? a) Concatenated Location Registration b) Concurrent Location Register c) Concatenated Management d) Collated Location Registration
Last Answer : a) Concatenated Location Registration
Description : Suppose a digitized voice channel is made by digitizing 8 kHz bandwidth analog voice signal. It is required to sample the signal at twice the highest frequency (two samples per hertz). What is the bit rate required, if it ... sample requires 8 bits? (A) 32 kbps (B) 64 kbps (C) 128 kbps (D) 256 kbps
Last Answer : (C) 128 kbps
Description : Mostly ________ is used in wireless LAN. a) time division multiplexing b) orthogonal frequency division multiplexing c) space division multiplexing d) channel division multiplexing
Last Answer : b) orthogonal frequency division multiplexing
Description : What is the raw channel bit error rate of Bluetooth? a) 10-3 b) 10-10 c) 103 d) 10-1
Last Answer : a) 10-3
Description : Which of the following channel is used by base station to provide forward link communication to mobile? a) RACH b) AGCH c) DCCH d) PCH
Last Answer : b) AGCH
Description : ___________ is a reverse link channel used by a subscriber unit to acknowledge. a) RACH b) AGCH c) DCCH d) PCH
Last Answer : a) RACH
Description : Which of the following channel provides paging signals from base station to all mobiles in the cell? a) RACH b) AGCH c) DCCH d) PCH
Last Answer : d) PCH
Description : Which of the following channel does not come under CCCH? a) PCH b) RACH c) DCCH d) AGCH
Last Answer : c) DCCH
Description : Which of the following is the forward control channel that is used to broadcast information? a) BCCH b) CCCH c) DCCH d) TCH
Last Answer : a) BCCH
Description : Which of the following is not a control channel of GSM? a) BCH b) CCCH c) DCCH d) TCH
Last Answer : d) TCH
Description : Which of the following does not come under subsystem of GSM architecture? a) BSS b) NSS c) OSS d) Channel
Last Answer : d) Channel
Description : HIPER-LAN stands for ____________ a) High Precision Radio Local Area Network b) High Performance Radio Local Area Network c) High Precision Radio Land Area Network d) Huge Performance Radio Link Access Node
Last Answer : b) High Performance Radio Local Area Network
Description : Which of the following subsystem provides radio transmission between mobile station and MSC? a) BSS b) NSS c) OSS d) BSC
Last Answer : a) BSS
Description : Which of the following feature makes impossible to eavesdrop on GSM radio transmission? a) SIM b) On the air privacy c) SMS d) Packet switched traffic
Last Answer : b) On the air privacy
Description : What is the channel spacing for MF-HF voice frequencies? A. 2.8 kHz B. 500 Hz C. 3.5 kHz D. 3 kHz
Last Answer : D. 3 kHz
Description : Nominal voice channel A. 20 to 20 KHz B. 16 to 16 KHz C. 3 to 3 KHz D. 4 KHz
Last Answer : D. 4 KHz
Description : What does the noise weighting curve shows? A. Noise signals measured with a 144 handset B. Power levels of noise found in carrier systems C. The interfering effect of other frequencies in a voice ... a reference frequency of one kilohertz D. Interfering effects of signals compared with a 3-kHz tone
Last Answer : C. The interfering effect of other frequencies in a voice channel compared with a reference frequency of one kilohertz
Description : How old do citizens have to be to vote for President? Choose one: a. Thirty-five (35) or older. b. Sixteen (16) or older. c. Twenty-one (21) or older. d. Eighteen (18) or older.
Last Answer : Correct Answer: d. Eighteen (18) or older.
Description : Minimum pitch of transverse reinforcement in a column is (A) The least lateral dimension of the member (B) Sixteen times the smallest diameter of longitudinal reinforcement bar to be tied (C) Forty-eight times the diameter of transverse reinforcement (D) Lesser of the above three values
Last Answer : Answer: Option D
Description : 2G and 2.5G CDMA operators may selectively introduce 3G capabilities at each cell without changing entire base stations and reallocate spectrums. a) True b) False
Description : The signals which are obtained by encoding each quantized signal into a digital word is called as a) PAM signal b) PCM signal c) FM signal d) Sampling and quantization
Last Answer : b) PCM signal
Description : W-CDMA requires a complete change of RF equipment at each base station. a) True b) False
Description : In wireless distribution system __________ a) multiple access point are inter-connected with each other b) there is no access point c) only one access point exists d) access points are not required
Last Answer : a) multiple access point are inter-connected with each other
Description : Which of the following types of channels moves data relatively slowly? a. wide band channel b. voice band challen c. narrow band channel
Last Answer : narrow band channel
Description : Which of the following types of channels moves data relatively slowly? A. widebandchannel B. voice band channel C. narrowband channel D. broadbandchannel E. None of the above
Last Answer : narrowband channel
Description : How much increase in spectral efficiency is provided by W-CDMA in comparison to GSM? a) Two times b) Three times c) No increase d) Six times
Last Answer : d) Six times
Description : An FDM hierarchy which is formed by frequency – division multiplexing five groups containing 12 channels each for a combined bandwidth of 240 kHz
Last Answer : Supergroup
Description : How many quarters can be found in eight\sixteen?
Last Answer : Two
Description : Eight men can do a certain amount of work in 3 days. Sixteen men can do the same amount of work in 6 days. It is true or false.?
Last Answer : Eight men can do a certain amount of work in 3 days. Sixteen men can do the same amount of work in 6 days. It is true or false.?
Description : A byte consists of A) One bit B) Four bits C) Eight bits D) Sixteen bits
Last Answer : Answer : C
Description : Two shafts A and B are made of same material. The diameter of shaft A is twice that of B. The torque transmitted by shaft A will be (A) Twice that of B (B) Four times that of B (C) Eight times that of B (D) Sixteen times that of B
Last Answer : (C) Eight times that of B