[多选] Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information?（）

站、车装载、堆放一级包装的放射性包裹应备专门存放地点，与感光器材和人应保持不少于（）的距离。 0.5米。 1米。 1.5米。 2米。 团体凝聚力 暑运期间，站、车客运人员在执行职务时，可不戴帽子。 Refer to the exhibit. Which statement is true about a voice VLAN？（）  Physically the voice network and the data network are separate.。  The voice traffic will normally be on a different IP subnet than will the data traffic.。  End user intervention is necessary to place the phone into the proper VLAN.。  The same security policy should be implemented for both voice and data traffic.。  The data VLAN must be configured as the native VLAN.。 教会的特征是什么？ Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information?（）