Which two of these statements best describe fast secure roaming？ （Choose two.）（）  

A. An 802.11 g access point with a variety of antennas can be used in all standard site surveys.
B. Site surveys can be performed manually or through assisted site survey.
C. Channel power during testing starts at the default minimum and gradually increases to the maximum.
D. Overlapping access points can create performance problems.
E. Surveys should be done after hours in an office building or during reduced inventory levels in warehouses.

A. It provides configuration， monitoring， and troubleshooting capabilities across a wide range of security products.
B. It integrates security device management products and collects events on an "as needed" basis to reduce management overhead.
C. It integrates security management capabilities into the router or switch.
D. It provides a single point of contact for all security configuration tasks thereby enhancing the return on investment.
E. It leverages existing network management systems such as HP OpenView to lower the cost of implementation.

A. full 802.11e compliance
B. full WPAv2 compliance
C. wireless IDS
D. NAC