下列()属于对称式传输。 A、ADSLB、HDSLC、VDSLD、CDSL
下列()属于对称式传输。
A、ADSL
B、HDSL
C、VDSL
D、CDSL
相关考题:
Which two forms of DSL connectivity provide the same bandwidth in both directions?() A.ADSLB.HDSLC.SDSLD.RADSL
Which two forms of DSL connectivity provide the same bandwidth in both directions?()A、ADSLB、HDSLC、SDSLD、RADSL
下列DSL技术中属于非对称数字用户线技术的有().A、HDSLB、ADSLC、VDSLD、IDSL