多项选择题 Which statements are true about EIGRP successor routes (Choose two.)（）。

单项选择题 A company has a small network,consisting of a single switch and a single router.The switch has been configured with two vlans,androute-on-a-stick is being configured on the router for inter-vlan routing.A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate?（）

多项选择题 Which three statements are typical characteristics of VLAN arrangements?（）