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 : Which of the following communications lines is best suited to interactive processing applications? a. narrow band channel b. simplex lines c. full duplex lines d. mixed band channels
Last Answer : full duplex lines
Description : What are the datatransmission channels availablefor carrying datafrom one location to another? A. Narrowband B. Voice band C. Broadband D. All of theabove E. None of the above
Last Answer : All of theabove
Description : What carrier system multiplexes 96 voice band channels into a single 6.312 Mbps data signal? A. T1 carrier system B. T2 carrier system C. T1C carrier system D. T3 carrier system
Last Answer : B. T2 carrier system
Description : In a conductor – (1) there is no conduction band (2) the forbidden energy gap is very wide (3) the forbidden energy gap is very narrow (4) the valence band and the conduction band overlap each other
Last Answer : (4) the valence band and the conduction band overlap each other Explanation: In the case of a conductor, there is no forbidden energy gap. The conduction and valence energy bands overlap ... , the electrons from the valence band can freely enter the conduction energy band. Conduction energy band
Description : An expert based test estimation is also known as A. Narrow band Delphi B. Wide band Delphi C. Bespoke Delphi D. Robust Delphi
Last Answer : A. Narrow band Delphi
Description : In a conductor (1) there is no conduction band (2) the forbidden energy gap is very wide (3) the forbidden energy gap is very narrow (4) the valence band and the conduction band overlap each other
Last Answer : the valence band and the conduction band overlap each other
Description : Compare narrow band FM with wide-band FM w.r.t. following points. (i) Modulation index (ii) Maximum deviation (iii)Range of modulating frequency (iv)Application
Last Answer : Sr. No Parameters Narrow band FM Wide band FM 1 Modulation index Less than or slightly greater than 1 Greater than 1 2 Maximum deviation ... like police wireless, ambulance etc. Entertainment broadcasting can be used for high quality music transmission
Description : Compare narrow band FM with wide band FM.
Last Answer : Narrow band FM Wide band FM 1 .Modulation Index is less than or slightly greater than 1. 1. Modulation Index is greater than 1. 2.Maximum deviation is ... .Application:-FM mobile communication like police wireless, ambulance etc. 5. Application:-Entertainment broadcasting.
Description : Demodulation is the process of A. converting digital signals toanalog signals B. converting analogsignals todigital signals C. combining many low speed channels into onehigh speed channel D. dividing the high-speed signals into frequency bands E. None of the above
Last Answer : converting analogsignals todigital signals
Description : Four channels are multiplexed using TDM. If each channel sends 100 bytes/second and we multiplex 1 byte per channel, then the bit rate for the link is __________. a. 400 bps b. 800 bps c. 1600 bps d. 3200 bps
Last Answer : d. 3200 bps
Description : How many telegraph channels are there in the basic voice band channels? A. 24 B. 96 C. 48 D. 672
Last Answer : A. 24
Description : In SPADE system, how many PCM-encoded voice band channels are there? A. 800 B. 600 C. 300 D. 240
Last Answer : A. 800
Description : How many voice band channels are there in a superjumbo group? A. 600 B. 900 C. 10,800 D. 3,600
Last Answer : C. 10,800
Description : ECE Board Exam March 1996 The number of voice band channels in master group per CCITT standard is __________. A. 300 B. 480 C. 600 D. 12
Last Answer : A. 300
Description : An FDM hierarchy which is formed by frequency – division multiplexing 10 super groups together for a combined capacity of 600 voice band message channels.
Last Answer : Mastergroup
Description : How many voice channels are supported for each 30 KHz radio channel in IS-136? a) Eight b) Thirty c) Three d) Sixteen
Last Answer : c) Three
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 : An output device that uses words or messages recorded on a magnetic medium to produce audio response is b. Magnetic tape c. Voice response unit d. Voice recognition unit e. Voice band
Last Answer : Voice response unit
Description : Each ________in a SONET framecancarry a digitized voice channel. A) bit B) byte C) frame D) none of the above
Last Answer : byte
Description : Which of hte following is considered a broad band communication channel? a. coaxial cable b. fiber optics cable c. microwave circuits d. all of above
Last Answer : all of above
Description : A remote batch-processing operation in which datais solely input toa central computer would requirea: A. telegraphline B. simplex lines C. mixed-band channel D. All the above E. None of the above
Last Answer : simplex lines
Description : The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challen
Last Answer : The process by which organisms with different evolutionary history evolve similar phenotypic ... Convergent evolution D. Non-random evolution
Description : Protocols are? A. Agreements on how communication components and DTE's are to communicate. B. Logical communication channels for transferring data C. Physical communication channels sued for transferring data D. None of above
Last Answer : A. Agreements on how communication components and DTE's are to communicate.
Description : There are two types of designs for communication subnets: they are ………… A. Point-to-Point channels and Broadcast channels B. packet-switched subnet and store-and-forward C. Multicasting and Broadcasting D. Point-to-Point channels and store-and-forward
Last Answer : A. Point-to-Point channels and Broadcast channels
Description : When data moves from one set of major connections to another on theInternet, we call theseconnections the Internet _____. A) Pathway B) Backbone C) Communications system D) Routers
Last Answer : Backbone
Description : In the OSI model, as a data packet moves from the lower to the upper layers, headers are a. Added b. Removed c. Rearranged d. Randomized
Last Answer : b. Removed
Description : .In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______ a. Added b. Removed c. Rearranged d. Randomized
Description : In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are ___________. A. Added B. Removed C. Rearranged D. Modified
Last Answer : A. Added
Description : In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______ a) Added b) Removed c) Rearranged d) Randomized
Last Answer : b) Removed
Description : In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are ___________ a) Added b) Removed c) Rearranged d) Modified
Last Answer : a) Added
Description : 12 voice channels are sampled at 8000 sampling rate and encoded into 8 bit PCM word. Determine the rate of the data stream. a. 354 kbps b. 750 kbps c. 768 kbps d. 640 kbps
Last Answer : c. 768 kbps
Description : What is the speed of data transfer in narrow band ?
Last Answer : Answer : Data transfer speeds in the narrow band range from 45bps to 300 bps .
Description : Is there an animal on earth that moves so slowly that it could see the plants grow around it?
Last Answer : I don’t think so. Growth is imperceptible where having to stop and process info. because one is moving too fast is not that uncommon, I do it every day, having an ultra fast brain I need to stop and let the information catch up/settle. lol
Description : Why when you are high in the sky and looking from the window of an airplane, it seemed that it moves very slowly, but when starting to lose altitude to land, suddenly it feels that it moves much faster?
Last Answer : The farther you are from something, the slower it appears to move. The closer you are to something, the faster it appears to move. This probably has something to do with relative frames of reference.
Description : What is a section of the lithosphere that slowly moves over the asthenosphere?
Last Answer : Plate
Description : Which of the following conditions indicates a short circuited capacitor when checking its condition with an ohmmeter? A. The capacitor shows charging, but the final resistance reading is appreciably less ... moves quickly to the low resistance side of the scale, then slowly recedes toward infinity.
Last Answer : Answer: B
Description : Which of the following transmission systems provide the highest data rate to in individual device? a. computer bus b. telephone lines c. voice and mode d. lease lines
Last Answer : computer bus
Description : The largest portionof the bandwidth for ADSLcarries_______. A) voice communication B) upstream data C) downstream data D) control data
Last Answer : downstream data
Description : ______ cable is used for voice and data communications. A) Coaxial B) Fiber-optic C) Twisted-pair D) none of the above
Last Answer : Twisted-pair
Description : ……….cable is used for voice and data communications. a. Twisted-pair b. None of These c. Coaxial d. Fiber-optic
Last Answer : a. Twisted-pair
Description : As compared to diskettes, the hard disks are a. More expensive b. More portable c. Less rigid d. Slowly accessed
Last Answer : More expensive
Description : If a learner is 'ready’ when he begins a new task and the first teaching is good, his learning curve will probably rise Options: A) Rapidly with wide fluctuations B) Rapidly with slight fluctuations C) At a moderate but very uniform rate of speed D) Slowly but steadily
Last Answer : B) Rapidly with slight fluctuations
Description : Which of the following printing devices an output composed of a series of data? a. Wire matrix printer b. Band printer c. Wang image printer d. Both a and c
Last Answer : Both a and c
Description : In______, each station is allocated a band to send its data. In other words, each band is reservedfor a specific station,and it belongs to the station all the time. A) FDMA B) TDMA C) CDMA D) none of the above
Last Answer : FDMA
Description : In ________signaling,a portionof the bandwidthis usedfor signaling and another portionfor data. A) in-band B) out-of-band C) mixed D) none of the above
Last Answer : out-of-band
Description : In______signaling, the samecircuit is used for both signaling and data. A) in-band B) out-of-band C) mixed D) none of the above
Last Answer : in-band
Description : Two male cats are frequently fighting right in front of the entrance to my narrow city garden [5 feet wide]. For details see inside.
Last Answer : answer:@noelleptc You beat me to it! : D
Description : What's wide at the bottom, narrow at the top, and has ears? -Riddles
Last Answer : A mountain with mountainears
Description : From house to house I go, sometimes narrow, sometimes wide. And whether there's rain or snow I always stay outside.What am I? -Riddles
Last Answer : A Path.