Continue your lesson
Tie every forwarding decision to interface state, Layer 2 state, addressing, routing, and policy.
Block 1 of 3Compare Access port · VLAN database
Current · 8 min
Compare Access port · VLAN database
Optional concept notes
Access port
Carries endpoint traffic for one untagged data VLAN.
VLAN database
Stores locally defined VLAN identifiers and names on a switch.
Complete one provider lesson, then answer four related questions. That is enough for today; more practice is optional.
Your lesson stays open here while the provider opens in another tab. Choose one source; the notes above are optional.
Block 2 of 3Understand Voice VLAN
6 min
Understand Voice VLAN
Optional concept notes
Voice VLAN
Separates tagged phone traffic from untagged endpoint data traffic.
Complete one provider lesson, then answer four related questions. That is enough for today; more practice is optional.
Your lesson stays open here while the provider opens in another tab. Choose one source; the notes above are optional.
Block 3 of 3Understand Switched virtual interface
5 min
Understand Switched virtual interface
Optional concept notes
Switched virtual interface
Provides a logical Layer 3 interface for a VLAN.
Complete one provider lesson, then answer four related questions. That is enough for today; more practice is optional.
Your lesson stays open here while the provider opens in another tab. Choose one source; the notes above are optional.
Practice the reasoning here
Write or inspect a small Cisco configuration, name the expected show-command evidence, and explain how a frame or packet crosses it.
- State the expected result before changing or testing anything.
- Name the observation, command, log, or report that would confirm it.
- Explain why the closest alternative does not fit the same requirement.
Check the whole objective
This unlocks objective 2.1 for recall. The latest checkpoint needs 70% or higher; a lower result puts the lesson back near the front of your timeline.