Answer:
The recommended type of trunk for interoperability is an IEEE 802.1Q trunk.
Explanation:
IEEE 802.1Q is an open industry standard and is the most commonly implemented on layer 2 switches of different vendors, assuring interoperability.
Commonly know as <em>dot1q</em>, is the networking standard that supports virtual LANs (VLANs) on an IEEE 802.3 Ethernet network. It specifies the mechanisms for tagging frames with VLAN data and the procedures for handling this data by switches and bridges.
The correct answer is All of these :)
