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Questions and Answers
According to the 802.1Q standard, what happens to traffic received on a trunk port without the VLAN tag?
According to the 802.1Q standard, what happens to traffic received on a trunk port without the VLAN tag?
- It is associated to the native VLAN (correct)
- It is dropped
- It is associated to VLAN 1
- It is forwarded to all VLANs
Which VLAN is the default native VLAN?
Which VLAN is the default native VLAN?
- VLAN 10
- VLAN 802.1Q
- VLAN 0
- VLAN 1 (correct)
What can happen if the native VLAN on two trunk ports does not match?
What can happen if the native VLAN on two trunk ports does not match?
- The trunk ports become access ports
- The native VLAN is disabled
- The traffic can change VLANs unintentionally (correct)
- The hosts connected to the access ports cannot communicate
What is the purpose of a native VLAN?
What is the purpose of a native VLAN?
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How can the native VLAN be changed on a port?
How can the native VLAN be changed on a port?
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Study Notes
VLAN Trunking and Native VLAN
- Traffic received on a trunk port without the VLAN tag is assigned to the native VLAN.
- The default native VLAN is VLAN 1.
- If the native VLAN on two trunk ports does not match, it can lead to unexpected traffic flow and potential security issues.
- The purpose of a native VLAN is to provide a default VLAN for untagged traffic on a trunk port, allowing devices that do not support VLANs to communicate with VLAN-aware devices.
- The native VLAN can be changed on a port by configuring the switch port with a different VLAN ID as the native VLAN.
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