单选题What is the maximum attainable bandwidth using an analog data modem？（）A28.8kbpsB56kbpsC128kbpsD1544kbps
单选题
What is the maximum attainable bandwidth using an analog data modem？（）
A
28.8kbps
B
56kbps
C
128kbps
D
1544kbps
参考解析
解析：
暂无解析
相关考题：
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
Digital computer is controlled by internally stored programs and(66) of using common storage for all or part of a program and also for all or part of the data necessary for the execution of the programs; executing user-written or user-designated programs; performing user-designated manipulation of digitally represented discrete data, including.(67) operations and logic operations; and executing programs that(68) themselves during their execution.Analog computer's operations are analogous to the(69) of another system and that accepts, processes, and produces analog data.(70) computer integrates analog computer components and digital computer components by interconnection of digital-to-analog converters and analog-to-digital converters.A．qualifiedB．competentC．capableD．able
What is the maximum attainable bandwidth using an analog data modem?() A.28.8kbpsB.56kbpsC.128kbpsD.1544kbps
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
What are two considerations to using IP Multicast delivery? () A. no congestion avoidanceB. not for bandwidth intensive applicationsC. no guaranteed delivery mechanismD. source sends multiple data streams out each interface
What is the difference between a CSU／DSU and a modem?() A. A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.B. A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.C. A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.D. A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line.
When analog signals are digitized using the G.711 codec， voice samples are encapsulated into protocol data units （PDUs） involving which three headers？ （）A、IPB、TCPC、RTPD、UDPE、H323F、CRTP
You are troubleshooting a problem with a cisco 7920 wireless ip phone that is causing the phone to drop calls. the problem appears to be a roaming bandwidth issuE. in order to verify what kind of issue it is， you decide to increase the bandwidth reserved for roaming on the wlan controller to the maximum. What level do you set the bandwidth to？（）A、25 percentB、15 percentC、5 percentD、35 percent
What is the default maximum reservable bandwidth （percentage） by any single flow on an interface after enabling RSVP？（）A、75 percentB、60 percentC、56 percentD、50 percentE、25 percent
What are two considerations to using IP Multicast delivery? （）A、no congestion avoidanceB、not for bandwidth intensive applicationsC、no guaranteed delivery mechanismD、source sends multiple data streams out each interface
What are two steps to define a QoS policy？（）A、set a minimum bandwidth guaranteeB、increase bandwidthC、determine a specific transfer rateD、establish timersE、configure CBWFQ for best-effort trafficF、set a maximum bandwidth limit
What happens when you enable QoS bandwidth detection? （）(Choose two.)A、Circuit speed is reduced by 2% for overhead.B、WAN speed can be configured to the LAN speed.C、Bandwidth is adjusted based on minimum and maximum settingsD、WAN bandwidth is detected based on acknowledgement of metapackets.
What is the maximum attainable bandwidth using an analog data modem？（）A、28.8kbpsB、56kbpsC、128kbpsD、1544kbps
What is the difference between a CSU/DSU and a modem?（）A、A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased lineB、A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased lineC、A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone lineD、A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line
What is the maximum data rate specified for IEEE 802.11b WLANs?（）A、10 MbpsB、11 MbpsC、54 MbpsD、100 Mbps
Which test checks the transmitter and receiver of a local modem？（）A、data parityB、analog loop backC、local digital loop backD、remote digital loop back
What happens when you enable QoS bandwidth detection? （）(Choose two.)A、Circuit speed is reduced by 2% for overhead.B、WAN speed can be configured to the LAN speed.C、Bandwidth is adjusted based on minimum and maximum settings.D、WAN bandwidth is detected based on acknowledgement of metapackets.
单选题You are troubleshooting a problem with a Cisco 7920 wireless IP phone that is causing the phoneto drop calls. The problem appears to be a roaming bandwidth issue. In order to verify what kindof issue it is， you decide to increase the bandwidth reserved for roaming on the WLAN controllerto the maximum. What level do you set the bandwidth to？（）A25 percentB15 percentC5 percentD35 percent
多选题When analog signals are digitized using the G.711 codec， voice samples are encapsulated into protocol data units （PDUs） involving which three headers？ （）AIPBTCPCRTPDUDPEH323FCRTP
单选题What is the default maximum reservable bandwidth （percentage） by any single flow on an interface after enabling RSVP？（）A75 percentB60 percentC56 percentD50 percentE25 percent
单选题What is the maximum attainable bandwidth using an analog data modem？（）A28.8kbpsB56kbpsC128kbpsD1544kbps
多选题What are two considerations to using IP Multicast delivery? （）Ano congestion avoidanceBnot for bandwidth intensive applicationsCno guaranteed delivery mechanismDsource sends multiple data streams out each interface
多选题What are two steps to define a QoS policy？（）Aset a minimum bandwidth guaranteeBincrease bandwidthCdetermine a specific transfer rateDestablish timersEconfigure CBWFQ for best-effort trafficFset a maximum bandwidth limit
单选题You are troubleshooting a problem with a Cisco 7920 wireless IP phone that is causing the phoneto drop calls. The problem appears to be a roaming bandwidth issue. In order to verify what kind ofissue it is， you decide to increase the bandwidth reserved for roaming on the WLAN controller tothe maximum. What level do you set the bandwidth to？（）A25 percentB15 percentC5 percentD35 percent
单选题What is the maximum data rate specified for IEEE 802.11b WLANs?（）A10MbpsB11MbpsC54MbpsD100Mbps
单选题What is the difference between a CSU/DSU and a modem?（）AA CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.BA CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.CA CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.DA CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line.
单选题When using WMM Call Admission Control， what are the default bandwidth values for video on802.11a/n（）？AMax RF bandwidth is 75 percent， reserved roaming bandwidth is 6 percent.BMax RF bandwidth is 50 percent， reserved roaming bandwidth is 10 percent.CMax RF bandwidth is 50 percent， reserved roaming bandwidth is 15 percent.DMax RF bandwidth is 0 percent， reserved roaming bandwidth is 0.
单选题What is the difference between a CSU/DSU and a modem?（）AA CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased lineBA CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased lineCA CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone lineDA CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line