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Pulse Code Modulation（PCM）是一种基于时分复用的数字编码多路复用技术，它的中文名字为（）。
- A、脉冲编码调制
- B、幅度编码调制
- C、相位键控调制
- D、频率键控调制
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更多 “Pulse Code Modulation（PCM）是一种基于时分复用的数字编码多路复用技术，它的中文名字为（）。A、脉冲编码调制B、幅度编码调制C、相位键控调制D、频率键控调制” 相关考题
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在VDSL系统中常用的线路编码技术主要有以下几种:()
A. 简单线路码 SLC(Simple Line Code)B. 离散多音频技术 DMT(Discrete MultiTone)C. 无载波调幅/调相技术CAP(Carrierless Amplitude/Phase modulation)D. 离散小波多音频技术 DWMT(Discrete Wavelet MultiTone)
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In the modulation style. of PSK, if a kind of Modem's modulation rate is 3200baud and it's phase is 8, what is the data transfer rate of this kind of Modem ?A．14.4kbpsB．28.8kbpsC．9600bpsD．3200bps
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Which three types of policies must you configure to allow remote users transparent access to protected resources using IF-MAP Federation between a Junos Pulse Secure Access Service and a Junos Pulse Access Control Service?（）A. Session-Export policies on the Junos Pulse Secure Access ServiceB. Session-Export policies on the Junos Pulse Access Control ServiceC. Session-Import policies on the Junos Pulse Secure Access ServiceD. Session-Import policies on the Junos Pulse Access Control ServiceE. Resource access policies on the Junos Pulse Access Control Service
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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
You have configured Junos Pulse on your Windows desktop and want to verify that the IPsec configuration policy is being pushed down to your workstation upon network authentication and login.Which utility program do you use to see this configuration and where do you find it?（）A、the Pulse Diagnostics Tool in the "File" "Tools" menu option in the Pulse GUIB、the Pulse Diagnostics Tool in the "Start" "All Programs" "Juniper Networks" "Junos Pulse" menu folder next to the Junos Pulse applicationC、the Pulse Diagnostics Viewer, which you access by simultaneously pressing "Ctrl" and "F2"D、the Pulse Diagnostics Viewer in the "File" "Tools" menu option in the Pulse GUI
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单选题You have a Junos Pulse Secure Access Service acting as an IF-MAP client, configured to federate all user roles to a Junos Pulse Access Control Service acting as an IF-MAP Federation server. A remote user using Junos Pulse logs in to the Junos Pulse Secure Access Service; the Junos Pulse Secure Access Service provisions a remote access session for that user.What happens next?（）A
The Junos Pulse Secure Access Service redirects the user to the Junos Pulse Secure Access Service for authenticationB
The Junos Pulse Access Control Service provisions enforcement points to enable resource access for that user.C
The Junos Pulse Secure Access Service publishes user session and role information to the IF- MAP Federation server,D
The Junos Pulse Secure Access Service provisions enforcement points to enable resource access for that user.
考题
多选题Which two statements are true about analog to digital conversion of voice signals for use in digital telephony networks？（）AThe three required steps in the analog to digital conversion are sampling，encoding，and compression.BThe three required steps in the analog to digital conversion are sampling，quantization，and compression.CThe three required steps in the analog to digital conversion are sampling，quantization，and encoding.DThe output of the sampling process is a pulse code modulation （PCM） signal.EThe output of the sampling process is a pulse amplitude modulation （PAM） signal.
考题
多选题Which three types of policies must you configure to allow remote users transparent access to protected resources using IF-MAP Federation between a Junos Pulse Secure Access Service and a Junos Pulse Access Control Service?（）ASession-Export policies on the Junos Pulse Secure Access ServiceBSession-Export policies on the Junos Pulse Access Control ServiceCSession-Import policies on the Junos Pulse Secure Access ServiceDSession-Import policies on the Junos Pulse Access Control ServiceEResource access policies on the Junos Pulse Access Control Service
考题
多选题What are two use cases enabled by IF-MAP Federation?（）AUsers authenticated to one Junos Pulse Access Control Service can transparently access resources protected by another Junos Pulse Access Control Service.BUsers authenticated to a Junos Pulse Access Control Service can transparently access resources protected by a Junos Pulse Secure Access Service.CRemote access users authenticated to a Junos Pulse Secure Access Service can transparently access resources protected by a Junos Pulse Access Control Service.DRemote access users authenticated to one Junos Pulse Secure Access Service can transparently access resources protected by another Junos Pulse Secure Access Service.
考题
单选题You have configured Junos Pulse on your Windows desktop and want to verify that the IPsec configuration policy is being pushed down to your workstation upon network authentication and login.Which utility program do you use to see this configuration and where do you find it?（）A
the Pulse Diagnostics Tool in the File Tools menu option in the Pulse GUIB
the Pulse Diagnostics Tool in the Start All Programs Juniper Networks Junos Pulse menu folder next to the Junos Pulse applicationC
the Pulse Diagnostics Viewer, which you access by simultaneously pressing Ctrl and F2D
the Pulse Diagnostics Viewer in the File Tools menu option in the Pulse GUI
考题
单选题According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and （）.A
the pulse-phase systemB
the pulse Doppler systemC
the pulse systemD
the pulse interval
考题
单选题What are the symptoms of sun stroke?（）A
Temperature falls below normal，pulse is rapid and feeble，skin is cold and clammyB
Temperature is high，pulse is strong and rapid，skin is hot and dryC
Temperature is high，pulse is slow and feeble，skin is clammyD
Temperature falls below normal，pulse is rapid，skin is clammy
考题
名词解释题modulation调制
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