MEF SD-WAN Practice Exam 2026 – Full Preparation Resource

The number 4094 is about how many distinct VLAN identifiers you can actually use. VLAN IDs are defined by a 12-bit field, which means there are 0 through 4095 possible values (4096 total). In practice, two values are reserved (commonly 0 and 4095), leaving 1 through 4094 as usable VLAN IDs. So 4094 represents the maximum count of usable L2 VLANs you can create. It’s not the total count of all possible IDs (that would be 4096) and it’s not the range itself; the usable range is 1–4094.