After logging into the RtrB router, you issue the "show interface" command as displayed below:<img src="https://img.ppkao.com/2018-07/longzhengxuan/2018073009553411098.jpg" /><br /> After considering the effects of the command output illustrated in the exhibit above,which of the following protocols are operational on the serial link?()<p> After logging into the RtrB router, you issue the "show interface" command as displayed below:<img src="https://img.ppkao.com/2018-07/longzhengxuan/2018073009553411098.jpg" /><br /> After considering the effects of the command output illustrated in the exhibit above,which of the following protocols are operational on the serial link?()</p>
A、A. PPP
B、B. IP
C、C. Compression
D、D. IPX
E、E. Multilink
F、F. ATX