Which two statements about VACLs on Cisco Nexus 7000 Series Switches are true？ （） [" A single VACL can be shared across two or more VDCs."," Use of VACLs requires no special license to be installed."," VACLs make use of IP or MAC ACLs."," Only options drop and forward are permitted."]
简述校长专业化的内涵。
评价检索效率的指标有（） ["查全率","查准率","误检率","漏检率","响应值"]
《夏小正》
SW5/6为透明模式，SW1为ser模式，SW2/3/4为client模式，问：如果在SW5上添加一个VLAN，如何使全网学习到这个VLAN？
某公司于年初向银行借款20万元，计划年末开始还款，每年还款一次，分3年偿还，银行借款利率6%。计算每年还款额为多少？
