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单选题
Which ISDN device converts the four-wire BRI signals from an S/T interface into two-wire signals of a U interface?（）
A
TE1
B
NT-2
C
TA
D
TE2
E
NT-1
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An administrator issues the show ip interface s0/0 command and the output displays that interface Serial0/0 is up, line protocol is up.What does "line protocol is up" specifically indicate about the interface?A．The cable is attached properly.B．CDP has discovered the connected device.C．Keepalives are being received on the interface.D．A carrier detect signal has been received from the connected device.E．IP is correctly configured on the interface.
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A Router with a BRI／T interface will be used for an ISDN Connection what other ISDN device is required to complete this connection? ()
A.TE1B.TE2C.NT1D.NT2
考题
Which ISDN device converts the four－wire BRI signals from an S／T interface into two－wire signals of a U interface?()
A.TE1B.NT-2C.TAD.TE2E.NT-1
考题
Which device enables a router serial interface to connect to the ISDN BRI?()
A.NT2B.NT1C.TED.TAE.TE1
考题
You have just obtained a modular Cisco router with 2 serial connections and a BRI／U interface. What other physical piece of hardware is required in order to establish an ISDN connection?()
A. Nothing. The router is already suitable.B. A BRI WAN interface in the router.C. An external NT1 to terminate the local loop.D. A TA/NT1 device on the router.
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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.
考题
Which two of these are characteristics of an IPS device？（）A、 passively listens to network trafficB、 is an active device in the traffic pathC、 has a permissive interface that is used to monitor networksD、 traffic arrives on one IPS interface and exits on another
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You have just obtained a modular Cisco router with 2 serial connections and a BRI/U interface. What other physical piece of hardware is required in order to establish an ISDN connection?（）A、Nothing. The router is already suitable.B、A BRI WAN interface in the router.C、An external NT1 to terminate the local loop.D、A TA/NT1 device on the router.
考题
A router with a serial interface will be used for an ISDN link.What other function group devices are required to complete the connection to the service provider? （）A、TE1B、TE2C、TAD、NT1E、NT2
考题
A Router with a BRI/T interface will be used for an ISDN Connection what other ISDN device is required to complete this connection? （）A、TE1B、TE2C、NT1D、NT2
考题
Which three functions are associated with a Cisco Unified CallManager？ （）A、 connects traditional telephony devices to voice over IP infrastructureB、 converts analog signals to digital formatC、 performs voice compressionD、 performs call processingE、 performs dial plan administrationF、 performs signaling and device control
考题
Which device enables a router serial interface to connect to the ISDN BRI?（）A、NT2B、NT1C、TED、TAE、TE1
考题
Which statements is true about Foreign Exchange Station （FXS） ports on a router？（）A、the FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central officeB、the FXS interface connect directly to a standard telephone， fax machine， or sililar device and supplies ring， voltage， and dial toneC、the FXS interface connect directly to an IP phone and supplies ring， voltage， and dial toneD、the FXS interface connect directly to ISDN voice channels
考题
Which statement is true about Foreign Exchange Station （FXS） ports on a router？（）A、The FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office.B、The FXS interface connects directly to a standard telephone，fax machine，or similar device and supplies ring，voltage，and dial tone.C、The FXS interface connects directly to an IP phone and supplies ring，voltage，and dial tone.D、The FXS interface connects directly to ISDN voice channels.
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When a router converts analog signals to digital signals， what three steps are always included in the process？（）A、involutionB、encodingC、samplingD、quantizationE、compressionF、companding
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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
考题
Which ISDN device converts the four-wire BRI signals from an S/T interface into two-wire signals of a U interface?（）A、TE1B、NT-2C、TAD、TE2E、NT-1
考题
Users can define policy to control traffic flow between which two components？（）A、from a zone to the device itselfB、from a zone to the same zoneC、from a zone to a different zoneD、from one interface to another interface
考题
单选题Which statements is true about Foreign Exchange Station （FXS） ports on a router？（）A
the FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central officeB
the FXS interface connect directly to a standard telephone， fax machine， or sililar device and supplies ring， voltage， and dial toneC
the FXS interface connect directly to an IP phone and supplies ring， voltage， and dial toneD
the FXS interface connect directly to ISDN voice channels
考题
单选题You have just obtained a modular Cisco router with 2 serial connections and a BRI/U interface. What other physical piece of hardware is required in order to establish an ISDN connection?（）A
Nothing. The router is already suitable.B
A BRI WAN interface in the router.C
An external NT1 to terminate the local loop.D
A TA/NT1 device on the router.
考题
多选题When a router converts analog signals to digital signals， what three steps are always included in the process？（）AinvolutionBencodingCsamplingDquantizationEcompressionFcompanding
考题
单选题Which statement concerning locating signals in the GMDSS is FALSE（）.A
Locating signals are transmitted by survival craft VHF transceiversB
Locating signals are transmitted by SARTsC
Locating signals are intended to facilitate the finding of a distressed vessel or its survivorsD
Locating signals are not transmitted by autoalarm generators
考题
单选题Which statement is true about Foreign Exchange Station （FXS） ports on a router？（）A
The FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office.B
The FXS interface connects directly to a standard telephone，fax machine，or similar device and supplies ring，voltage，and dial tone.C
The FXS interface connects directly to an IP phone and supplies ring，voltage，and dial tone.D
The FXS interface connects directly to ISDN voice channels.
考题
单选题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.
考题
单选题A Router with a BRI/T interface will be used for an ISDN Connection what other ISDN device is required to complete this connection? （）A
TE1B
TE2C
NT1D
NT2
考题
单选题Which device enables a router serial interface to connect to the ISDN BRI?（）A
NT2B
NT1C
TED
TAE
TE1
考题
单选题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
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