CompTIA A+ 220-801

Answer: D - 802.1Q is the IEEE standard for VLAN trunking. Newer Cisco and Juniper switches use 802.1Q as the tagging method.

Key Takeaway: VLAN Trunking Protocol, or VTP proprietary messaging protocol, operates on OSI layer 2. VTP is used to manage the Virtual Local Area Networks, or VLANs, for the entire network. VTP supports addition, deletion, and renaming of VLANs. IEEE 802.1Q, or VLAN Tagging, is networking that allows multiple bridged networks to transparently share the same physical network link without leakage of information between networks.