单项选择题
A. stateful packet statistics
B. real-time analysis & dropped packets
C. ACL statement matches
D. portmap requests
单项选择题 A company wants to connect two new offices to their main office.One building is 2 miles away from the headquarters and the other is 12 miles away. The angle between the buildings is 80 degrees. Which antenna is the best to use in this situation？ （）
多项选择题 AfterproperlyconfiguringmultipleVLANs，anadministratorhasdecidedtosecureitsVLANnetwork.Whichthreestepsarerequiredtosecurethisenvironment？（Choosethree.）（）
多项选择题 Whataretwoimportantapproachestocommunicatewhenidentifyingacustomer’ssecurityrisks？（Choosetwo.）（）