Learn how a Layer 2 switch learns MAC addresses, chooses forwarding paths, handles unknown destinations, and manages table entries over time.
Intermediate12 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 a Switch Learns LocationsA switch records source locations and uses the table to guide later forwarding.Separating Learning From ForwardingSource inspection updates knowledge; destination lookup determines frame treatment.Table Maintenance And PressureAging removes inactive entries, while limits and flooding can broaden forwarding.