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Switching and Network Access →mediumDrag & DropObjective-mapped

CCNA Switching and Network Access Practice Question

This 200-301 practice question tests your understanding of switching and network access. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

Drag and drop the following steps into the correct order to configure VLANs, assign access ports, set up 802.1Q trunks with a native VLAN, and verify the configuration using show commands.

Question 1mediumdrag order

Open the full VLAN trunking answer →

A
1. Create VLANs using the 'vlan' command in global config mode. 2. Assign access ports to VLANs using 'switchport access vlan'. 3. Configure trunk ports with 'switchport mode trunk' and set native VLAN with 'switchport trunk native vlan'. 4. Verify with 'show vlan brief', 'show interfaces trunk', and 'show interfaces switchport'.
This is correct because VLANs must be created before they can be assigned to ports. Access ports are assigned to VLANs after creation. Trunk configuration, including native VLAN, should be done after access port assignments. Verification commands confirm the setup.
B
1. Assign access ports to VLANs using 'switchport access vlan'. 2. Create VLANs using the 'vlan' command. 3. Configure trunk ports with 'switchport mode trunk' and set native VLAN. 4. Verify with 'show vlan brief' and 'show interfaces trunk'.
This is incorrect because VLANs must be created before assigning ports to them. Assigning an access port to a non-existent VLAN will fail or cause errors.
C
1. Configure trunk ports with 'switchport mode trunk' and set native VLAN. 2. Create VLANs using the 'vlan' command. 3. Assign access ports to VLANs. 4. Verify with 'show interfaces trunk' and 'show vlan brief'.
This is incorrect because trunk configuration should come after VLAN creation and access port assignment. Configuring trunks before VLANs exist can lead to issues with native VLAN mismatch or VLAN pruning.
D
1. Verify with 'show vlan brief' and 'show interfaces trunk'. 2. Create VLANs. 3. Assign access ports. 4. Configure trunk ports.
This is incorrect because verification should be the last step after configuration, not the first. You cannot verify something that hasn't been configured yet.

Full breakdown with real-world context →

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

1. Create VLANs using the 'vlan' command in global config mode. 2. Assign access ports to VLANs using 'switchport access vlan'. 3. Configure trunk ports with 'switchport mode trunk' and set native VLAN with 'switchport trunk native vlan'. 4. Verify with 'show vlan brief', 'show interfaces trunk', and 'show interfaces switchport'.

The correct sequence ensures VLANs exist before any port assignment or trunk configuration. Creating VLANs first is essential because both access and trunk ports depend on VLANs being present. Access port assignment and trunk configuration are independent steps that can occur in either order after VLANs are created. Verification using 'show vlan brief', 'show interfaces trunk', and 'show interfaces switchport' is always the final step to confirm the setup.

Key principle: A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
1. Create VLANs using the 'vlan' command in global config mode. 2. Assign access ports to VLANs using 'switchport access vlan'. 3. Configure trunk ports with 'switchport mode trunk' and set native VLAN with 'switchport trunk native vlan'. 4. Verify with 'show vlan brief', 'show interfaces trunk', and 'show interfaces switchport'.
Why this is correct
This is correct because VLANs must be created before they can be assigned to ports. Access ports are assigned to VLANs after creation. Trunk configuration, including native VLAN, should be done after access port assignments. Verification commands confirm the setup.
Related concept
Access ports place end devices into a single VLAN.
✓
1. Assign access ports to VLANs using 'switchport access vlan'. 2. Create VLANs using the 'vlan' command. 3. Configure trunk ports with 'switchport mode trunk' and set native VLAN. 4. Verify with 'show vlan brief' and 'show interfaces trunk'.
Why this is correct
This is incorrect because VLANs must be created before assigning ports to them. Assigning an access port to a non-existent VLAN will fail or cause errors.
Related concept
Access ports place end devices into a single VLAN.
✓
1. Configure trunk ports with 'switchport mode trunk' and set native VLAN. 2. Create VLANs using the 'vlan' command. 3. Assign access ports to VLANs. 4. Verify with 'show interfaces trunk' and 'show vlan brief'.
Why this is correct
This is incorrect because trunk configuration should come after VLAN creation and access port assignment. Configuring trunks before VLANs exist can lead to issues with native VLAN mismatch or VLAN pruning.
Related concept
Access ports place end devices into a single VLAN.
✓
1. Verify with 'show vlan brief' and 'show interfaces trunk'. 2. Create VLANs. 3. Assign access ports. 4. Configure trunk ports.
Why this is correct
This is incorrect because verification should be the last step after configuration, not the first. You cannot verify something that hasn't been configured yet.
Related concept
Access ports place end devices into a single VLAN.

Common exam traps

Common exam trap: an active trunk can still block the VLAN you need

A trunk being up does not prove every VLAN is crossing it. Check allowed VLAN lists, native VLAN mismatch, VLAN existence and access-port assignment.

Detailed technical explanation

How to think about this question

VLAN questions usually combine access-port and trunking clues. The key is to identify whether the issue is local to one switchport, caused by the trunk, or caused by the VLAN not existing where it needs to exist.

KKey Concepts to Remember

Access ports place end devices into a single VLAN.
Trunk ports carry multiple VLANs between switches.
Allowed VLAN lists decide which VLANs can cross a trunk.
Native VLAN mismatch can create confusing symptoms.

TExam Day Tips

Use show vlan brief to verify access VLANs.
Use show interfaces trunk to verify trunk state and allowed VLANs.
Do not treat every same-VLAN issue as a routing problem.

Key takeaway

A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.

Real-world example

How this comes up in practice

A help-desk technician troubleshoots why a newly connected PC cannot reach shared printers on the same floor. The cable is good, the switch port is active, but the PC is in VLAN 20 and the printers are in VLAN 10. The uplink trunk only allows VLAN 10. A trunk being up does not mean every VLAN crosses it.

What to study next

Got this wrong? Here's your next step.

Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related 200-301 questions on switching, trunking, and access-port configuration.

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FAQ

Questions learners often ask

What does this 200-301 question test?

Switching and Network Access — This question tests Switching and Network Access — Access ports place end devices into a single VLAN..

What is the correct answer to this question?

The correct answer is: 1. Create VLANs using the 'vlan' command in global config mode. 2. Assign access ports to VLANs using 'switchport access vlan'. 3. Configure trunk ports with 'switchport mode trunk' and set native VLAN with 'switchport trunk native vlan'. 4. Verify with 'show vlan brief', 'show interfaces trunk', and 'show interfaces switchport'. — The correct sequence ensures VLANs exist before any port assignment or trunk configuration. Creating VLANs first is essential because both access and trunk ports depend on VLANs being present. Access port assignment and trunk configuration are independent steps that can occur in either order after VLANs are created. Verification using 'show vlan brief', 'show interfaces trunk', and 'show interfaces switchport' is always the final step to confirm the setup.

What should I do if I get this 200-301 question wrong?

What is the key concept behind this question?

Access ports place end devices into a single VLAN.

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