Refer to the exhibit. The network administrator has verified that a functioning cable connects Switch1 and Switch2. From the output that is shown, what two pieces of information can the administrator validly conclude?
  • 1、
【正确答案】 1、C,E    
【答案解析】接口显示的notconnect, 当然需要检查对端的接口的状态了 ,一般来说交换机的接口显示为一up一 down,是物理链路出现了问题。因为他只有物理层是up的,所以我们只能说他工作在OSI的第一层。