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200-301 SW1 and SW2 VLAN Trunking Practice Questions

Use this page to practise 200-301 SW1 and SW2 VLAN Trunking Practice Questions practice questions. The goal is not to memorise dumps, but to understand the concept, review the explanation and improve your exam readiness.

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15
scenario questions
200-301
exam code
Cisco
vendor

Scenario guide

How to approach sw1 and sw2 vlan trunking practice questions

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

Quick answer

VLAN and trunking questions usually test whether the VLAN exists, whether the trunk is active and whether the VLAN is allowed across the link.

Access ports, trunk ports and native VLAN behaviour.

Allowed VLAN lists and trunk verification.

How to read show vlan brief and show interfaces trunk output.

Why hosts in the same VLAN may fail across switches.

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Practice set

Practice scenarios

Question 1hardmultiple choice
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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?

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Question 2mediummultiple choice
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On an 802.1Q trunk, which VLAN is sent untagged by default on many Cisco switches unless changed?

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Question 3mediummultiple choice
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A switch shows this output:

Gi0/1 on 802.1q trunking 1 Gi0/2 auto n-802.1q trunking 1

Which statement is correct?

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Question 4mediummultiple choice
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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?

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Question 5hardmultiple choice
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A trunk link has a native VLAN mismatch between two switches. What is the most likely result?

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Question 6hardmultiple choice
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A switch displays the following output:

Switch# show interfaces trunk

Port Mode Encapsulation Status Native vlan Gi1/0/24 on 802.1q trunking 99

Port Vlans allowed on trunk Gi1/0/24 10,20,30

Port Vlans active in management domain Gi1/0/24 10,20,30,40

Users in VLAN 40 cannot reach resources across this trunk.

What is the most likely reason?

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Question 7hardmultiple choice
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A switch has DHCP snooping enabled and Dynamic ARP Inspection enabled on VLAN 30. A printer with a static IP on VLAN 30 cannot communicate because its ARP packets are being dropped.

What is the best fix?

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Question 8hardmultiple choice
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Clients in VLAN 30 are not receiving addresses from the DHCP server located in VLAN 99. Which configuration change should be made on the Layer 3 interface for VLAN 30?

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Question 9hardmultiple choice
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A multilayer switch must route traffic between VLAN 10 and VLAN 20. Which condition is required for that to happen?

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Question 10hardmultiple choice
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A trunk between two switches is up, but users in VLAN 40 cannot communicate across it. The output shows both sides allow VLAN 40. What is another likely trunk-related cause to check next?

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Question 11mediummatching
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Match each VLAN-related term to its most accurate meaning.

Select a concept, then select the correct description to match it.

Concept

Description

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Question 12hardmultiple choice
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A switch port should allow an IP phone and attached PC to operate correctly. The phone should place voice traffic in VLAN 200 while the PC remains in VLAN 20. Which configuration approach best supports that design?

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Question 13mediummultiple choice
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A switch interface connects to a user PC and should belong only to VLAN 30. Which command assigns that VLAN after the interface is in access mode?

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Question 14hardmultiple choice
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Two switches are connected by a trunk. VLAN 50 exists on both switches, but traffic still fails across the link. The allowed VLAN list is correct. Which additional item should be checked next?

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Question 15hardmultiple choice
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A switchport connected to another switch is configured with `switchport mode dynamic auto` on both ends. What is the most likely outcome if neither side actively negotiates trunking?

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These 200-301 practice questions are part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style 200-301 questions with detailed explanations, topic-based practice, mock exams, readiness tracking, and study analytics.