When a Cisco switch receives untagged frames on a 802.1Q trunk port, Which VLAN ID is the traffic switched to by default?

Question:
When a Cisco switch receives untagged frames on a 802.1Q trunk port, Which VLAN ID is the traffic switched to by default?

• unused VLAN ID
• native VLAN ID
• data VLAN ID
• management VLAN ID

Explanation: A native VLAN is used to forward untagged frames that are received on a Cisco switch 802.1Q trunk port. Untagged frames that are received on a trunk port are not forwarded to any other VLAN except the native VLAN.

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