Continue your lesson
Tie every forwarding decision to interface state, Layer 2 state, addressing, routing, and policy.
Block 1 of 1Compare Router · Layer 2 switch · Layer 3 switch · Wireless access point
Current · 13 min
Compare Router · Layer 2 switch · Layer 3 switch · Wireless access point
Optional concept notes
Router
Forwards packets between IP networks using a routing table.
Cross-certificationCCNA ↔ Net+
Router
The core idea stays the same. The surrounding objective changes the evidence, decision, or task the exam asks for.
Layer 2 switch
Forwards Ethernet frames using learned MAC address entries.
Layer 3 switch
Performs hardware switching and routes between configured IP interfaces.
Wireless access point
Bridges wireless client frames onto a wired LAN.
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 1.1 for recall. The latest checkpoint needs 70% or higher; a lower result puts the lesson back near the front of your timeline.