单项选择题
A.255.255.255.0 B.255.255.255.240 C.255.255.255.248 D.255.255.255.252 E.255.255.255.254
OSI中,链路层和传输层都是面向连接的,但链路层建立的是点到点的连接,传输层建立的是端到端的连接。
判断题OSI中,链路层和传输层都是面向连接的,但链路层建立的是点到点的连接,传输层建立的是端到端的连接。
IP地址与它的掩码取反相与,所得的非零点分十进制数是此IP地址的()。A.A类B.主机地址C.网络地址D.解析...
单项选择题IP地址与它的掩码取反相与,所得的非零点分十进制数是此IP地址的()。
A.A类 B.主机地址 C.网络地址 D.解析地址
While troubleshooting a connectivity problem, a network...
单项选择题While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate()。
A.The port is experiencing errors B.The port is administratively disabled C.The port is blocked by spanning tree D.The port has an active link with normal traffic activity