GB0-191 Exam Question 81
OSI 参考模型物理层的主要功能是 ______ 。
GB0-191 Exam Question 82
如图所示网络环境中,两台路由器以串口背靠背相连,要设置互连链路的速率为 2Mbps ,下面说法正确的是 ______ 。
GB0-191 Exam Question 83
想要修改设备名称,应该使用 ______ 命令（请写全命令)。
GB0-191 Exam Question 84
路由器 S0/0 接口通过帧中继接入网络,在此路由器上看到如下接口信息:
[MSR]display interface Serial 0/0
Serial0/0 current state: UP
Line protocol current state: UP
Internet Address is 3.3.3.1/24 Primary
Link layer protocol is FR IETF
LMI DLCI is 0, LMI type is Q.933a, frame relay DTE
LMI status enquiry sent 91, LMI status received 69
LMI status timeout 22, LMI message discarded 1
那么可知 ______ 。（多选)
[MSR]display interface Serial 0/0
Serial0/0 current state: UP
Line protocol current state: UP
Internet Address is 3.3.3.1/24 Primary
Link layer protocol is FR IETF
LMI DLCI is 0, LMI type is Q.933a, frame relay DTE
LMI status enquiry sent 91, LMI status received 69
LMI status timeout 22, LMI message discarded 1
那么可知 ______ 。（多选)
GB0-191 Exam Question 85
下列选项中,哪些是基于 MAC 地址的 802.1x 验证的特点 ? （多选)