The Nyquist theorem specifies the minimum samplingrate to be_______. A) equal to the lowest frequency of asignal B) equal to the highest frequency ofa signal C) twice thebandwidth of a signal D) twice thehighest frequencyof a signal

The Nyquist theorem specifies the minimum samplingrate to be_______.
A)
equal to the lowest frequency of asignal
B)
equal to the highest frequency ofa signal
C)
twice thebandwidth of a signal
D)
twice thehighest frequencyof a signal
by

1 Answer

Answer :

twice thehighest frequencyof a signal
by

Related questions

If the frequency spectrum of a signal has a bandwidth of500 Hz with thehighest frequency at 600 Hz, what shouldbe the samplingrate, according to the Nyquist theorem? A) 200 samples/s B) 500 samples/s C) 1000 samples/s D) 1200 samples/s

Description : If the frequency spectrum of a signal has a bandwidth of500 Hz with thehighest frequency at 600 Hz, what shouldbe the samplingrate, according to the Nyquist theorem? A) 200 samples/s B) 500 samples/s C) 1000 samples/s D) 1200 samples/s

Last Answer : 1200 samples/s

ECE Board Exam March 1996 According to the Nyquist theorem, the sampling rate that can be used in a PCM system is ________ the highest audio frequency. A. once B. eight times C. twice D. thrice

Description : ECE Board Exam March 1996 According to the Nyquist theorem, the sampling rate that can be used in a PCM system is ________ the highest audio frequency. A. once B. eight times C. twice D. thrice

Last Answer : C. twice

The term modem is a composite word that refers to the two functional entities that make up the device: asignal _______ and a signal _______. A) modulator; demodulator B) demodulator; modulator C) modern;demo D) none of the above

Description : The term modem is a composite word that refers to the two functional entities that make up the device: asignal _______ and a signal _______. A) modulator; demodulator B) demodulator; modulator C) modern;demo D) none of the above

Last Answer : modulator; demodulator

In_________, the frequencyof the carrier signal is varied to representdata. Both peak amplitudeand phase remain constant. A) ASK B) PSK C) FSK D) QAM

Description : In_________, the frequencyof the carrier signal is varied to representdata. Both peak amplitudeand phase remain constant. A) ASK B) PSK C) FSK D) QAM

Last Answer : FSK

The _____of a composite signal is the difference between the highest and the lowest frequencies contained in that signal. A) frequency B) period C) bandwidth D) amplitude

Description : The _____of a composite signal is the difference between the highest and the lowest frequencies contained in that signal. A) frequency B) period C) bandwidth D) amplitude

Last Answer : frequency

In_______, the stations share thebandwidth of the channel in time. A) FDMA B) TDMA C) CDMA D) none of the above

Description : In_______, the stations share thebandwidth of the channel in time. A) FDMA B) TDMA C) CDMA D) none of the above

Last Answer : TDMA

What is the bandwidth ofa signal that ranges from 1 MHz to4 MHz? A) 4 MHz B) 1 KHz C) 3 MHz D) none of the above

Description : What is the bandwidth ofa signal that ranges from 1 MHz to4 MHz? A) 4 MHz B) 1 KHz C) 3 MHz D) none of the above

Last Answer : 3 MHz

The ____layer is responsible for the movement ofa signal across aphysical line. A) section B) line C) path D) photonic

Description : The ____layer is responsible for the movement ofa signal across aphysical line. A) section B) line C) path D) photonic

Last Answer : section

_______ is a typeof transmission impairment in which an outside sourcesuch as crosstalk corrupts asignal. A) Attenuation B) Distortion C) Noise D) Decibel

Description : _______ is a typeof transmission impairment in which an outside sourcesuch as crosstalk corrupts asignal. A) Attenuation B) Distortion C) Noise D) Decibel

Last Answer : Noise

Frequencyof failure and network recovery time after a failure are measures of the_______of a network. A) Performance B) Reliability C) Security D) Feasibility

Description : Frequencyof failure and network recovery time after a failure are measures of the_______of a network. A) Performance B) Reliability C) Security D) Feasibility

Last Answer : Reliability

As per Nyquist criterion the sampling rate is (A) 2fs (B) (1/2)fs (C) (1/2fs) (D) (2/fs) Where fs is the signal frequency

Description : As per Nyquist criterion the sampling rate is (A) 2fs (B) (1/2)fs (C) (1/2fs) (D) (2/fs) Where fs is the signal frequency

Last Answer : (A) 2fs

What theorem sets a limit on the maximum capacity of a channel with a given noise level? A. Nyquist theorem B. Hartley law C. Shannon-Hartley theorem D. Shannon theorem

Description : What theorem sets a limit on the maximum capacity of a channel with a given noise level? A. Nyquist theorem B. Hartley law C. Shannon-Hartley theorem D. Shannon theorem

Last Answer : C. Shannon-Hartley theorem

______ sets the limit on the maximum capacity of a channel with a given noise level. A. Hartley theorem B. Shannon-hartley theorem C. Nyquist theorem D. Shannon theorem

Description : ______ sets the limit on the maximum capacity of a channel with a given noise level. A. Hartley theorem B. Shannon-hartley theorem C. Nyquist theorem D. Shannon theorem

Last Answer : B. Shannon-hartley theorem

________ sets a limit on the maximum capacity of a channel with a give noise level. A. Hartley theorem B. Shannon-Hartley theorem C. Nyquist theorem D. Shannon theorem

Description : ________ sets a limit on the maximum capacity of a channel with a give noise level. A. Hartley theorem B. Shannon-Hartley theorem C. Nyquist theorem D. Shannon theorem

Last Answer : B. Shannon-Hartley theorem

Classify data networks. Explain with the help of Nyquist theorem, the data rate limitations in PSTN’s. Give an account of modems used in data transfer. Explain their importance and list some of the V-series recommendations.

Description : Classify data networks. Explain with the help of Nyquist theorem, the data rate limitations in PSTN’s. Give an account of modems used in data transfer. Explain their importance and list some of the V-series recommendations.

Last Answer : Classifications of Data Network:  Data Networks are classified according to their geographical coverage: Wide area networks (WANs) Metropolitan area networks(MANs) Local area ...  V.53 Limits for the maintenance of telephone type circuits used for data transmission. 

State sampling theorem. Define Nyquist rate.

Description : State sampling theorem. Define Nyquist rate.

Last Answer : SAMPLING THEOREM: Sampling theorem states that a band-limited signal of finite energy having the highest frequency component fm Hz can be represented and recovered completely from a set of samples taken ... frequency should be equal to or greater than twice the maximum signal frequency (fs≥ 2fm)

For a ______ channel, the Nyquist bit rate formula defines thetheoretical maximum bit rate. A) noisy B) noiseless C) bandpass D) low-pass

Description : For a ______ channel, the Nyquist bit rate formula defines thetheoretical maximum bit rate. A) noisy B) noiseless C) bandpass D) low-pass

Last Answer : noiseless

Given an AM radio signal with abandwidth of10 KHzand the highest-frequency component at 705 KHz, what is the frequency of the carrier signal? A) 700 KHz B) 705 KHz C) 710 KHz D) Cannot bedetermined from giveninformation

Description : Given an AM radio signal with abandwidth of10 KHzand the highest-frequency component at 705 KHz, what is the frequency of the carrier signal? A) 700 KHz B) 705 KHz C) 710 KHz D) Cannot bedetermined from giveninformation

Last Answer : 700 KHz

If the bandwidth of a signal is 5 KHz and thelowest frequency is 52 KHz, what is the highest frequency? A) 5 KHz B) 10 KHz C) 47 KHz D) 57 KHz

Description : If the bandwidth of a signal is 5 KHz and thelowest frequency is 52 KHz, what is the highest frequency? A) 5 KHz B) 10 KHz C) 47 KHz D) 57 KHz

Last Answer : 57 KHz

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 is assumed that each sample requires 8 bits? (A) 32 kbps (B) 64 kbps (C) 128 kbps (D) 256 kbps

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

Inthe _______method, after thestation finds the line idle it sends or refrainfrom sending based on the outcome ofa random number generator. If the line is busy, it tries againA)nonpersistentB)1-persistentC)p-persistentD)none of the above

Description : Inthe _______method, after thestation finds the line idle it sends or refrainfrom sending based on the outcome ofa random number generator. If the line is busy, it tries again A) nonpersistent B) 1-persistent C) p-persistent D) none of the above

Last Answer : p-persistent

The _______ address in theheader ofa packet in adatagram network normally remains thesame during the entire journeyof the packet. A) source B) destination C) local D) none of the above

Description : The _______ address in theheader ofa packet in adatagram network normally remains thesame during the entire journeyof the packet. A) source B) destination C) local D) none of the above

Last Answer : destination

_________ media transportelectromagnetic waves without the use ofa physical conductor. A) Guided B) Unguided C) Either (a) or (b) D) None of the above

Description : _________ media transportelectromagnetic waves without the use ofa physical conductor. A) Guided B) Unguided C) Either (a) or (b) D) None of the above

Last Answer : Unguided

______ cables arecomposed ofa glass or plastic inner core surrounded by cladding, allencasedin an outside jacket. A) CoaxiaB) Fiber-optic C) Twisted-pair D) none of the abovel

Description : ______ cables arecomposed ofa glass or plastic inner core surrounded by cladding, allencasedin an outside jacket. A) Coaxial B) Fiber-optic C) Twisted-pair D) none of the above

Last Answer : Fiber-optic

_____ isa digitalprocess that allows several connections to share thehighbandwidth ofa link. A) FDM B) TDM C) WDM D) None of the above

Description : _____ isa digitalprocess that allows several connections to share thehighbandwidth ofa link. A) FDM B) TDM C) WDM D) None of the above

Last Answer : TDM

In IPv6, the _______ field inthe baseheader restricts the lifetime ofa datagram. A) version B) next-header C) hoplimit D) neighbor-advertisemen

Description : In IPv6, the _______ field inthe baseheader restricts the lifetime ofa datagram. A) version B) next-header C) hoplimit D) neighbor-advertisemen

Last Answer : hoplimit

A DVD is an example ofa(n) – (A) hard disk (B) opticaldisc (C) output device (D) solid-state storage device (E) None of these

Description : A DVD is an example ofa(n) – (A) hard disk (B) opticaldisc (C) output device (D) solid-state storage device (E) None of these

Last Answer : opticaldisc

The basic unit ofa worksheet into which you enter data in Excel is called a– (A) tab (B) cell (C) box (D) range (E) None of these

Description : The basic unit ofa worksheet into which you enter data in Excel is called a– (A) tab (B) cell (C) box (D) range (E) None of these

Last Answer : cell

To instruct Wordto fit the width ofa column to the contents ofa table automatically, click the button and then point to AutoFit Contents. (A) Fit to Form (B) Format (C) Autosize (D) Contents (E) AutoFit

Description : To instruct Wordto fit the width ofa column to the contents ofa table automatically, click the button and then point to AutoFit Contents. (A) Fit to Form (B) Format (C) Autosize (D) Contents (E) AutoFit

Last Answer : AutoFit

In mesh topology, every device has a dedicated topology ofa. Point to point linking b. Both a and b c. Multipoint linking d. None of given

Description : In mesh topology, every device has a dedicated topology of a. Point to point linking b. Both a and b c. Multipoint linking d. None of given

Last Answer : a. Point to point linking

While measuring frequency response, as the signal generator approaches the lowest and highest frequency the recorder can effectively record, the VTVM reading drops to less than - 3 dB. What does this indicate?

Description : While measuring frequency response, as the signal generator approaches the lowest and highest frequency the recorder can effectively record, the VTVM reading drops to less than - 3 dB. What does this indicate?

Last Answer : The upper and lower limits of the frequency response specification for that tape recorder.

The 802.2 frame specifies a type whereas 802.3 frame specifies a length: A. True B. False

Description : The 802.2 frame specifies a type whereas 802.3 frame specifies a length: A. True B. False

Last Answer : True

The x.25 standard specifies a a. technique for start-stop data b. technique for dial access c. DTE/DCE interface d. data bit rate e. none of above

Description : The x.25 standard specifies a a. technique for start-stop data b. technique for dial access c. DTE/DCE interface d. data bit rate e. none of above

Last Answer : DTE/DCE interface

Which language in WWW specifies a web's way by describing three- dimensional objects? a. HTML b. VRML c. XML d. UML

Description : Which language in WWW specifies a web's way by describing three- dimensional objects? a. HTML b. VRML c. XML d. UML

Last Answer : b. VRML

The analog signal m(t) is given below m(t) = 4 cos 100 pt + 8 sin 200 pt + cos 300 pt, the Nyquist sampling

Description : The analog signal m(t) is given below m(t) = 4 cos 100 pt + 8 sin 200 pt + cos 300 pt, the Nyquist sampling rate will be: (1) 1/100 (2) 1/200 (3) 1/300 (4) 1/600 

Last Answer : The analog signal m(t) is given below m(t) = 4 cos 100 pt + 8 sin 200 pt + cos 300 pt, the Nyquist sampling rate will be: 1/300

For a given system, the minimum frequency of a standing wave is in a A. fundamental mode B. lowest mode C. highest mode D. peak mode

Description : For a given system, the minimum frequency of a standing wave is in a A. fundamental mode B. lowest mode C. highest mode D. peak mode

Last Answer : fundamental mode

The minimum bandwidth of Manchester and differential Manchester is ____that of NRZ. A) the sameas B) twice C) thrice D) none of the above

Description : The minimum bandwidth of Manchester and differential Manchester is ____that of NRZ. A) the sameas B) twice C) thrice D) none of the above

Last Answer : twice

Given two sine waves A and B, if the frequency of A is twicethat of B, thenthe period of B is ________ thatof A. A) one-half B) twice C) the sameas D) indeterminate from

Description : Given two sine waves A and B, if the frequency of A is twicethat of B, thenthe period of B is ________ thatof A. A) one-half B) twice C) the sameas D) indeterminate from

Last Answer : twice

Consider a small aliphatic 1° amine, 1° alcohol, ester, carboxylic acid, and amide, all of similar molecular weight. Which one is most likely to have thehighest boiling point?(a) The amide(b) The alcohol(c) The ester(d) The carboxylic acid

Description : Consider a small aliphatic 1° amine, 1° alcohol, ester, carboxylic acid, and amide, all of similar molecular weight. Which one is most likely to have the highest boiling point? (a) The amide (b) The alcohol (c) The ester (d) The carboxylic acid

Last Answer : The amide

If a voltage of 125 VDC is applied to the illustrated circuit where the resistance of R1 is 12 ohms, and R2 is 115 ohms, the current will be_______. EL-0019 A. 11.5 amps B. 12.5 amps C. 115 amps D. 125 amps

Description : If a voltage of 125 VDC is applied to the illustrated circuit where the resistance of R1 is 12 ohms, and R2 is 115 ohms, the current will be_______. EL-0019 A. 11.5 amps B. 12.5 amps C. 115 amps D. 125 amps

Last Answer : Answer: A

The beds which have a gentle upstream dip will be_______ to the resultant force (R), hence can provides the best resistance to withstand the stresses or loads acting in the area. (A) Parallel (B) Perpendicular (C) None of these

Description : The beds which have a gentle upstream dip will be_______ to the resultant force (R), hence can provides the best resistance to withstand the stresses or loads acting in the area. (A) Parallel (B) Perpendicular (C) None of these 

Last Answer : (B) Perpendicular  

If the particular proposition of a subaltern relation is false its corresponding universal proposition will be_______. A) true B) false C) both true and false D) doubtful.

Description : If the particular proposition of a subaltern relation is false its corresponding universal proposition will be_______. A) true B) false C) both true and false D) doubtful. 

Last Answer : B) false 

Suppose that the one-way propagation delay for a 100 Mbps Ethernet having 48-bit jamming signal is 1.04 micro-seconds. The minimum frame size in bits is: a. 112 b. 160 c. 208 d. 256

Description : Suppose that the one-way propagation delay for a 100 Mbps Ethernet having 48-bit jamming signal is 1.04 micro-seconds. The minimum frame size in bits is: a. 112 b. 160 c. 208 d. 256

Last Answer : d. 256

In an Ethernet local area network, which one of the following statements is TRUE ? a. A station stops to sense the channel once it starts transmitting a frame. b. The purpose of the jamming signal is to pad the frames that are smaller than the minimum frame size. c. A station continues to transmit the packet even after the collision is detected. d. The exponential backoff mechanism reduces the probability of collision on retransmissions

Description : In an Ethernet local area network, which one of the following statements is TRUE ? a. A station stops to sense the channel once it starts transmitting a frame. b. The purpose ... collision is detected. d. The exponential backoff mechanism reduces the probability of collision on retransmissions

Last Answer : The exponential backoff mechanism reduces the probability of collision on retransmissions

Consider a CSMA/CD network that transmits data at a rate of 100 Mbps (108 bits per second) over a 1 km (kilometre) cable with no repeaters. If the minimum frame size required for this network is 1250 bytes, what is the signal speed (km/sec) in the cable? a. 8000 b. 10000 c. 16000 d. 20000

Description : Consider a CSMA/CD network that transmits data at a rate of 100 Mbps (108 bits per second) over a 1 km (kilometre) cable with no repeaters. If the minimum frame size required for this network is 1250 bytes, what is the signal speed (km/sec) in the cable? a. 8000 b. 10000 c. 16000 d. 20000

Last Answer : d. 20000

Suppose the round trip propagation delay for a 10 Mbps Ethernet having 48-bit jamming signal is 46.4 ms. The minimum frame size is a. 94 b. 416 c. 464

Description : Suppose the round trip propagation delay for a 10 Mbps Ethernet having 48-bit jamming signal is 46.4 ms. The minimum frame size is a. 94 b. 416 c. 464

Last Answer : c. 464

The _______ technique uses M different carrier frequencies that are modulated by the source signal. At one moment, the sign modulates one carrier frequency; at the next moment, thesignal modulates another carrier frequency. A) FDM B) DSSSC)FHSSD)TDM

Description : The _______ technique uses M different carrier frequencies that are modulated by the source signal. At one moment, the sign modulates one carrier frequency; at the next moment, thesignal modulates another carrier frequency. A) FDM B) DSSS C) FHSS D) TDM

Last Answer : FHSS

Which multiplexing technique shifts each signal to a different carrier frequency? A) FDM B) TDM C) Both (a)and (b) D) None of the above

Description : Which multiplexing technique shifts each signal to a different carrier frequency? A) FDM B) TDM C) Both (a)and (b) D) None of the above

Last Answer : FDM

In_______, the peakamplitude of one signal level is 0; the other is thesame as the amplitude of the carrier frequency. A) PSK B) OOK C) FSK D) none of the above

Description : In_______, the peakamplitude of one signal level is 0; the other is thesame as the amplitude of the carrier frequency. A) PSK B) OOK C) FSK D) none of the above

Last Answer : OOK