Digital Signal Processing（DSP）,has emerged as an important technology for modem electronic systems.It is a form of______that is one of the newest and hottest fields,and is considered to be the workhorse of choice for many computational-intensive applications.A.embedded designB.programmingC.kernelD.software
Digital Signal Processing（DSP）,has emerged as an important technology for modem electronic systems.It is a form of______that is one of the newest and hottest fields,and is considered to be the workhorse of choice for many computational-intensive applications.
A.embedded design
B.programming
C.kernel
D.software
B.programming
C.kernel
D.software
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解析：
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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
Telecommunications stand for devices and systems that transmit electronic or optical signals across long distances. Telecommunications enables people around the world to contact one another, to access information instantly, and to communicate from remote areas. Telecommunications usually involves a sender of information and one or more recipients linked by a technology, such as a telephone system, that transmits information from one place to another. Telecommunications enables people to sand and receive personal messages across town, between countries, and to and from outer space. It also provides the key medium for delivering news, data, information, and entertainment.Telecommunications devices convert different types of information, such as sound and video, into electronic or optical signals. Electronic signals typically travel along a medium such as copper wire or are carried over the air as radio waves. Optical signals typically travel along a medium such as strands of glass fibers. When a signal reaches its destination, the device on the receiving end converts the signal back into an understandable message, such as sound over a telephone, moving images on a television, or words and pictures on a computer screen.Telecommunications messages can be sent in a variety of ways and by a wide range of devices. The messages can be seat from one sender to a single receiver (point-to-point) or from one sender to many receivers (point-to-multipoint). Personal communications, such as a telephone conversation between two people or a facsimile (fax) message (see Facsimile Transmission), usually involve point-to-point transmission. Point-to-multipoint telecommunications, often called broadcasts, provide the basis for commercial radio and television programming.Telecommunications begin with messages that are converted into electronic or optical signals. Some signals, such as those that carry voice or music, are created in an analog or wave format, but may be converted into a digital or mathematical format for faster and more efficient transmission. The signals are then sent over a medium to a receiver, where they are decoded back into a form. that the person receiving the message can understand. There are a variety of ways to create and decode signals, and many different ways to transmit signals.Individual people, businesses, and governments use many different types of telecommunications systems. Some systems, such as the telephone system, use a network of cables, wires, and switching stations for point-to-point communication. Other systems, such as radio and television, broadcast radio signals over the air that can be received by anyone who has a device to receive them. Some systems make use of several types of media to complete a transmission. For example, a telephone call may travel by means of copper wire, fiber-optic cable, and radio waves as the call is sent from sender to receiver. All telecommunications systems are constantly evolving as telecommunications technology improves. Many recent improvements, for example, offer high-speed broadband connections that are needed to send multimedia information over the Internet.Personal computers have pushed the limits of the telephone system as more and more complex computer messages are being sent over telephone lines, and at rapidly increasing speeds. This need for speed has encouraged the development of digital transmission technology. The growing use of personal computers for telecommunications has increased the need for innovations in fiber-optic technology.Telecommunications and information technologies are merging and converging. This means that many of the devices now associated with only one function may evolve into more versatile equipment. This convergence is already happening in various fields. Some telephones and pagers are able to store not only phone numbers but also names and personal information aboA．Current development.B．Transmission of message.C．Computer networking.D．Government regulation.
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
As a network administrator, you will need to decide on the appropriate network devices to use. Which of the following correctly describes the roles of devices in a WAN? (Choose three)A. A CSU/DSU terminates a digital local loop.B. A router is commonly considered a DCE device.C. A modem terminates an analog local loop.D. A router is commonly considered a DTE device.E. A modem terminates a digital local loop.F. A CSU/DSU terminates an analog local loop.G. A modem is used to terminate a T1
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
SMP is considered to be a form of(). A. mail protocol.B. monitoring protocol.C. mapped printer.D. multi-processing.
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
Which of the following describes the roles of devices in a WAN? () A.A CSU/DSU terminates a digital local loopB.A modem terminates a digital local loopC.A CSU/DSU terminates an analog local loopD.A modem terminates an analog local loopE.A router is commonly considered a DTE deviceF.A router is commonly considered a DCE device
Nowadays with the development of science, more and more new technology__________to the fields of IT.A.has introduceD.B.was introduceD.C.will introduceD.is being introduceD.
During the modem boot process，how does the modem acquire the downstream channel？（）A、The modem is commanded by the CMTS to set to the specific channelB、The modem uses the default value in the broadcom chipsetC、The modem tuner sets a level as defined by the DOCSIS specificationD、The modem tuner scans the downstream spectrum until digital QAM modulated signal is encountered
Which three statements about firewall modes are correct？ （）A、 A firewall in routed mode has one IP addressB、 A firewall in transparent mode has one IP addressC、 In routed mode， the firewall is considered to be a Layer 2 dewD、 In routed mode， the firewall is considered to be a Layer 3 deviceE、 In transparent mode， the firewall is considered to be a Layer 2 deviceF、 In transparent mode， the firewall is considered to be a Layer 3 device
Which of the following describes the roles of devices in a WAN (Choose three.)（）。A、A CSU/DSU terminates a digital local loop.B、A modem terminates a digital local loop.C、A CSU/DSU terminates an analog local loop.D、A modem terminates an analog local loop.E、A router is commonly considered a DTE device.F、A router is commonly considered a DCE device.
Which of the following describes the roles of devices in a WAN? （）A、A CSU/DSU terminates a digital local loopB、A modem terminates a digital local loopC、A CSU/DSU terminates an analog local loopD、A modem terminates an analog local loopE、A router is commonly considered a DTE deviceF、A router is commonly considered a DCE device
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.
Which of the following describes the roles of devices in a WAN?（）A、A CSU/DSU terminates a digital local loop.B、A modem terminates a digital local loop.C、A CSU/DSU terminates an analog local loop.D、A modem terminates an analog local loop.E、A router is commonly considered a DTE device.F、A router is commonly considered a DCE device.
What are two steps that are taken when a router converts a voice signal from analog to digital form？（）A、samplingB、packetizationC、quantizationD、serialization
SMP is considered to be a form of（）.A、mail protocol.B、monitoring protocol.C、mapped printer.D、multi-processing.
多选题Which three statements about firewall modes are correct？ （）AA firewall in routed mode has one IP addressBA firewall in transparent mode has one IP addressCIn routed mode， the firewall is considered to be a Layer 2 dewDIn routed mode， the firewall is considered to be a Layer 3 deviceEIn transparent mode， the firewall is considered to be a Layer 2 deviceFIn transparent mode， the firewall is considered to be a Layer 3 device
单选题SMP is considered to be a form of（）.Amail protocol.Bmonitoring protocol.Cmapped printer.Dmulti-processing.
多选题Which of the following describes the roles of devices in a WAN? (Choose three.)（）AA CSU/DSU terminates a digital local loop.BA modem terminates a digital local loop.CA CSU/DSU terminates an analog local loop.DA modem terminates an analog local loop.EA router is commonly considered a DTE device.FA router is commonly considered a DCE device.
单选题What are two steps that are taken when a router converts a voice signal from analog to digital form？（）A samplingB packetizationC quantizationD serialization
单选题During the modem boot process，how does the modem acquire the downstream channel？（）AThe modem is commanded by the CMTS to set to the specific channelBThe modem uses the default value in the broadcom chipsetCThe modem tuner sets a level as defined by the DOCSIS specificationDThe modem tuner scans the downstream spectrum until digital QAM modulated signal is encountered
单选题SMP is considered to be a form of：（）A mail protocol.B monitoring protocol.C mapped printer.D multi-processing.
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多选题Which of the following describes the roles of devices in a WAN?（）AA CSU/DSU terminates a digital local loopBA modem terminates a digital local loopCA CSU/DSU terminates an analog local loopDA modem terminates an analog local loopEA router is commonly considered a DTE deviceFA router is commonly considered a DCE device