Which of the following are characteristics of $802\mathrm{.}1$Q$?($Select four answers$)$

Encapsulates a normal Ethernet frame before forwarding it over a trunk

Does not encapsulate a normal Ethernet frame before forwarding, but instead inserts a header after the destination and source MAC addresses

Uses the concept of a native VLAN

Cisco proprietary

Supported by IP Phones

Supported by $2960$ switches