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200-301 SW1 and SW2 VLAN Trunking Practice Questions

Practise switch scenarios involving SW1, SW2, VLANs, trunk links, allowed VLAN lists and show interfaces trunk output.

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Common Traps on SW1 and SW2 VLAN Trunking Practice Questions

  • ·A VLAN must exist and be allowed on the trunk before traffic can cross the link.
  • ·Access ports and trunk ports solve different problems.
  • ·Native VLAN mismatch and allowed VLAN lists are common causes of confusing trunk behaviour.

Sample Questions

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1.

Switch SW1 sends traffic for VLAN 30 across a trunk to SW2, but hosts in VLAN 30 on SW2 cannot communicate with hosts in VLAN 30 on SW1. Other VLANs work across the trunk. Which trunk issue is most likely?

Explanation: If only one VLAN fails across an otherwise healthy trunk, a missing or filtered VLAN in the allowed list is a common cause. Native VLAN matching and encapsulation would affect broader trunk behavior, not usually just one VLAN in this way.

2.

On an 802.1Q trunk, which VLAN is sent untagged by default on many Cisco switches unless changed?

Explanation: On many Cisco platforms, VLAN 1 is the default native VLAN. Native VLAN traffic is sent untagged unless the native VLAN is changed.

3.

A switch shows this output: Gi0/1 on 802.1q trunking 1 Gi0/2 auto n-802.1q trunking 1 Which statement is correct?

Explanation: Gi0/1 is already operating as an 802.1Q trunk. Gi0/2 is in dynamic auto mode, which waits for the other side to actively negotiate trunking.

4.

A switch displays the following output: Interface Status VLAN Gi1/0/5 connected 20 Gi1/0/6 notconnect 1 Gi1/0/24 trunk trunk Which interface is operating as an access port in VLAN 20?

Explanation: The output explicitly shows Gi1/0/5 in VLAN 20 and not operating as a trunk.

5.

A trunk link has a native VLAN mismatch between two switches. What is the most likely result?

Explanation: Untagged traffic may be placed into different VLANs on each side of the trunk, causing traffic leakage or connectivity problems.

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Related Topics

vlan practice questionstrunkingshow interfaces trunk

Frequently asked questions

How do "SW1 and SW2 VLAN Trunking Practice Questions" appear on the real 200-301?

Practise switch scenarios involving SW1, SW2, VLANs, trunk links, allowed VLAN lists and show interfaces trunk output. These appear throughout the 200-301 and require you to apply your knowledge, not just recall facts.

How many scenario questions are on the 200-301 exam?

Cisco doesn't publish an exact breakdown, but scenario-based questions (especially exhibit and command-output formats) make up a significant portion of the 200-301. Practicing each scenario type ensures you're ready for any format.

Are these 200-301 scenario practice questions free?

Yes — all scenario practice on Courseiva is completely free. Sign up for a free account to track your progress and see which scenario types you've mastered.

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