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单选题
数字减影血管造影DSA的英文是（ ）。
A
digital signal acquisition
B
data signal acquisition
C
data subtraction angiography
D
digital subtraction angiography
E
data signal acquisition
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考题
在通信专业中，DSP的英文全称是（91），“自适应的“通常翻译为英文是（92）。A.Data Signal PulseB.Digital Signal ProcessingC.Data Stream PropertyD.Digital Spectrum Programming
考题
CS语音环回功能对应的toolkit任务类型是哪个?()
A.RNLU_UE_DATA_TESTB.RNLU_UE SIGNAL BY UEIDC.RNLC_IU COMON SIGNALD.RNLC_UE SIGNAL BY UEID
考题
RNC灌包功能对应的toolkit任务类型是哪个?()
A.RNLC_UE SIGNAL BY UEIDB.RNLU_UE SIGNAL BY UEIDC.RNLU_UE_DATA_TESTD.RNLU_CCIU
考题
在通信专业中，DSP的英文全称是（），自适应的通常翻译为英文是（）。A．Data Signal Pulse B．Digital Signal Processing C．Data Stream Property D．Digital Spectrum ProgrammingA．adaptive B．autonomous C．automatic D．active
考题
The maximum data rate of any single wireless link can be described by the shannons theorem which is related to the（）in hertz，and the（）on the channelA．signal frequency B．bandwidth C．carrier frequency D．noise frequency A．signal B．caeeier C．noise D．data signal
考题
数字摄影(DR)表示的英文单词是()。A.data recognizerB.dynamic rangeC.digital radiographyD.data readerE.degree of radiation
考题
ATM when referring to computers is a dedicated, connection switching technology that organizes digital data into 53-byte(69)units and transmits them over a physical(70)using digital signal technology. ATM is capable oftransniitfing at speeds of 155 or 622 MBit/s and faster.A．minutenessB．toothfulC．cellD．spot
考题
After 100 meters (328 feet), CAT6 cabling is known to experience which of the following symptoms?()
A. Signal lossB. Signal bleedC. Data collisionD. Crosstalk
考题
An analog signal's characteristic quantity representing data may 66). at any instant, any value within a continuous(67). For example, an analog signal may follow continuously the values of another physical quantity representing data.A discrete signal is composed of(68)elements in time, each element having one or more characteristic quantities which can represent data. Examples of characteristic quantities are amplitude, waveform,(69), and position in time. A digital signal is a special case of discrete signals, in which data are represented by a(70)number of well-defined discrete values that one of its characteristic quantities may take in time.A．acquireB．collectC．assumeD．fetch
考题
Digital data can also be represented by (71)signals by use ofa modem. The modem converts a series of binary voltage (72) into an analog signal by encoding the digital data ontoa carrier frequency. The resulting signal occupies a certam spectrum of (73) centered about the carTier and may be propagated acrossa medium suitable for that carrier. The most common modems represent digital data in the voice(74)and hence allow those datato be propagated over ordinary voice-grade (75 )lines At the other end of the line, another modem demodulates the signal to recover the original data(71)A.analogB.digitalC.ModemD.electric
考题
Information theory is related to the quantification of information. This was developed by Claude E. Shannon to who found fundamental limits on()operations such as compressing data and on reliably storing and communicating data.A.signal
B.data
C.information
D.signal processing
考题
SCADA的英文全称是：（）A、Super Control And Data AcquisitionB、Supervisory Control And Data AcquisitionC、Super Connect And Data AcquisitionD、Supervisory Connect And Data Asking
考题
CS语音环回功能对应的toolkit任务类型是哪个？（）A、RNLU_UE_DATA_TESTB、RNLU_UE SIGNAL BY UEIDC、RNLC_IU COMON SIGNALD、RNLC_UE SIGNAL BY UEID
考题
Which two statements are true about analog to digital conversion of voice signals for use in digital telephony networks？（）A、The three required steps in the analog to digital conversion are sampling，encoding，and compression.B、The three required steps in the analog to digital conversion are sampling，quantization，and compression.C、The three required steps in the analog to digital conversion are sampling，quantization，and encoding.D、The output of the sampling process is a pulse code modulation （PCM） signal.E、The output of the sampling process is a pulse amplitude modulation （PAM） signal.
考题
The AirMagnet passive site survey tool can provide RF coverage data， except for which parameter？（）A、Signal strength （4th access point）B、Signal strength （3rd access point）C、Channel interferenceD、Predictive physical data rate downlink （2nd access point）
考题
What is the term that is used to describe the process of converting a signal from digital to analog？（）A、 packetizationB、 quantizationC、 decodingD、 sampling
考题
数字摄影（DR）是哪两个英文单词的缩写（）A、data recognizerB、dynamic rangeC、digital radiographyD、data readerE、degree of radiation
考题
RNC灌包功能对应的toolkit任务类型是哪个？（）A、RNLC_UE SIGNAL BY UEIDB、RNLU_UE SIGNAL BY UEIDC、RNLU_UE_DATA_TESTD、RNLU_CCIU
考题
Which two statements are true about broadband cable （HFC） systems？（）A、Cable modems only operate at Layer 1 of the OSI model.B、Cable modems operate at Layers 1 and 2 of the OSI model.C、Cable modems operate at Layers 1， 2， and 3 of the OSI model.D、A function of the cable modem termination system （CMTS） is to convert the modulated signal from the cable modem into a digital signal.E、A function of the cable modem termination system is to convert the digital data stream from the end user host into a modulated RF signal for transmission onto the cable system.
考题
Which of the following transmits a digital signal?（）A、VGAB、XGAC、Component videoD、DisplayPort
考题
After 100 meters (328 feet), CAT6 cabling is known to experience which of the following symptoms?（）A、Signal lossB、Signal bleedC、Data collisionD、Crosstalk
考题
单选题RNC灌包功能对应的toolkit任务类型是哪个？（）A
RNLC_UE SIGNAL BY UEIDB
RNLU_UE SIGNAL BY UEIDC
RNLU_UE_DATA_TESTD
RNLU_CCIU
考题
单选题Which of the following transmits a digital signal?（）A
VGAB
XGAC
Component videoD
DisplayPort
考题
单选题CS语音环回功能对应的toolkit任务类型是哪个？（）A
RNLU_UE_DATA_TESTB
RNLU_UE SIGNAL BY UEIDC
RNLC_IU COMON SIGNALD
RNLC_UE SIGNAL BY UEID
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