10+ practice questions focused on Show Interfaces Trunk — one of the most tested topics on the CCNA 200-301 v2 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Show Interfaces Trunk PracticeYou are connected to a Multilayer Switch MLS1. Configure the switch so that interface GigabitEthernet1/0/1 is an access port for VLAN 10, with voice VLAN 110 for an IP phone, and enable PoE. Additionally, interface GigabitEthernet1/0/2 must be an access port for VLAN 20 to connect an AP. Verify the configuration using 'show interfaces switchport' and 'show power inline'.
Explanation: It configures Gi1/0/1 as an access port in VLAN 10 with voice VLAN 110 and PoE enabled, and Gi1/0/2 as an access port in VLAN 20. Option B is wrong because it uses 'switchport mode trunk' instead of 'switchport mode access'. For a voice VLAN, the port should be an access port, not a trunk. Option C is wrong because it disables PoE with 'power inline never', but the IP phone requires power. Option D is wrong because it assigns the access VLAN as 110 and voice VLAN as 10, reversing the intended roles. Verify with 'show interfaces switchport' and 'show power inline'.
You are connected to SW1. Two switches, SW1 and SW2, are connected via four GigabitEthernet links. Configure LACP EtherChannel between them using interfaces GigabitEthernet0/1 through GigabitEthernet0/4 on SW1. Set the channel-group mode to active on SW1. The port-channel interface must be configured as a trunk, allowing VLANs 10, 20, 30. However, the EtherChannel is not forming. The current configuration is shown below. Identify and fix the issue, then verify the EtherChannel is operational.
Explanation: The EtherChannel is not forming because the Port-channel1 interface is configured as a Layer 3 interface (no switchport, IP address), while the member interfaces are Layer 2 switchports (switchport mode trunk). This mismatch prevents the channel from bundling. To fix this, configure Port-channel1 as a Layer 2 trunk interface with the same allowed VLANs. The solution: remove the no switchport command and the IP address, then apply switchport mode trunk and switchport trunk allowed vlan 10,20,30. After correction, the ports should bundle and the show etherchannel summary will show the ports as bundled (P) and the port-channel as Layer 2 (S).
Drag and drop the following steps into the correct order to create VLANs, assign access ports, configure 802.1Q trunks, set the native VLAN, and verify with 'show vlan brief' and 'show interfaces trunk'.
Explanation: VLANs must be created before assigning ports; trunking is configured after access ports; verification is the final step.
Drag and drop the following steps into the correct order to configure an LACP EtherChannel on two Cisco switches using active mode.
Explanation: To configure an LACP EtherChannel in active mode, you must first enter interface configuration mode on the physical interfaces (e.g., using interface range). Next, assign those interfaces to a channel group using the channel-group command with the mode active keyword; this enables LACP negotiation and ensures the switch actively attempts to form a bundle. After the member ports are configured, you can optionally set parameters on the Port-Channel interface (such as switchport mode trunk). Finally, verify the EtherChannel is operational with show etherchannel summary. Using mode passive, on, or desirable would not enable LACP active negotiation or would use a different protocol (PAgP), which does not meet the requirement.
After configuring a trunk port to allow VLAN 40, a technician finds that VLAN 40 is not listed among the VLANs in spanning tree forwarding state in the show interfaces trunk output. What is the most likely cause?
Explanation: VLAN 40 must exist in the local VLAN database before it can participate in spanning tree on a trunk port. Even if the trunk is configured to allow VLAN 40, if the VLAN has not been created on the switch, the spanning tree protocol will not place it in a forwarding state. The 'show interfaces trunk' output will list only VLANs that are both allowed and existent, so the absence of VLAN 40 in the forwarding state indicates it was never created.
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Practice all Show Interfaces Trunk questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Show Interfaces Trunk. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Show Interfaces Trunk questions on the 200-301 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Show Interfaces Trunk is tested as part of the CCNA 200-301 v2 blueprint. Practicing with targeted Show Interfaces Trunk questions ensures you can handle any format or difficulty that appears.
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Difficulty is subjective, but Show Interfaces Trunk is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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