Learn how access ports and 802.1Q trunk ports classify, carry, tag, and restrict VLAN traffic.
Intermediate15 min read
Ethernet and Switching lessonNetworkingPractice
UNTIMED COACHING
Practice before the pressure
Use feedback to correct the model, not merely memorize an option position.
GUIDED PRACTICE
Practice the lesson questions
Answer normal lesson questions without a timer. Every answer includes an explanation, and incorrect answers can be tried again before continuing.
20 questions balanced across the lesson's key topics
At least four explanatory diagrams or tables
Retry freely, without a timer or score
CONCEPT MODELS
See the lesson as a system
Use these visual guides to connect the key ideas before answering the questions.
How an 802.1Q Trunk Identifies TrafficA trunk uses one native VLAN for untagged traffic and tags traffic for other VLANs.Validating Untagged Trunk TrafficBoth ends need the same native VLAN, and the intended VLAN must also be available.