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Think you understand VLANs? Prove it... try the VLAN Challenge.... =)
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Given the following illustration:

https://www.practicalnetworking.net/wp-content/uploads/2016/06/vlan-game.png

(If the transparent background makes it difficult to see, here is the same illustration against a white background)

Each switchport is labeled with either A# indicating an Access port in Vlan "#", or T# indicating a Trunk port with the Native VLAN set to "#".

Every host has an IP address correctly configured in the same IP Network.

Answer the following questions:

  • Question #1: If Host A sends a frame to Host B, will Host B receive it?
  • Question #2: If Host A sends a Broadcast frame, which hosts will receive it?

I'll post the answers here in a few hours, maybe a few days if this post gains enough traction. Although, it probably isn't too difficult to find the answer on my site ... (don't cheat!) =).

PS: To keep it simple, assume L2 control protocols are disabled. No CDP, no STP/PVSTP, etc, this is purely focused on just the VLAN operation. Also, yes, this is a terribly designed and configured network; it merely exists to test your VLAN knowledge. ;p


Answer has been posted below, one of these links should take you to the comment:

https://old.reddit.com/r/ccna/comments/gsb3pb/think_you_understand_vlans_prove_it_try_the_vlan/#fs75860

https://www.reddit.com/r/ccna/comments/gsb3pb/think_you_understand_vlans_prove_it_try_the_vlan/fs75860/

If you haven't tried answering yourself, give it a shot before looking at the answer =)

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4 years ago