1. [单选题]“ipaccess-group”命令在接口上缺省的应用方向是什么"（）。
A. in
B. 具体取决于接口应用哪个访问控制列表
C. out
D. 无缺省值
2. [单选题]What kind of cable should be used to establish a trunked line between two Catalyst switches?
A. A straight-through cable
B. An EIA/TIA-232 serial cable
C. An auxiliary cable
D. A modem cable
E. A cross-over cable
