单项选择题 Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13.An 802.1Q trunk is configured between the two switches.On CAT1，VLAN10 is chosen as native，but on CAT2 the native VLAN is not specified.What will happen in this scenario？（）

单项选择题 Which command shows system hardware and software version information？（）

单项选择题 When you are logged into aswitch，which prompt indicates that you are inprivileged mode？（）