- A
VLAN 1
VLAN 1 is the default and cannot be removed.
- B
VLAN 1002-1005
Why wrong: These are default token ring/FDDI VLANs but not the most reserved.
- C
VLAN 3968-4047
Why wrong: These are reserved for internal use on some platforms.
- D
VLAN 4094
Why wrong: Reserved for some features but not the primary reserved.
Question 239 of 1,000
350-601 Network Practice Question
This 350-601 practice question tests your understanding of network. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Which VLAN range is reserved by default on Cisco Nexus switches?
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
✓
VLAN 1
VLAN 1 is the default VLAN on Cisco Nexus switches and cannot be deleted or renamed. It is automatically created on all switches and carries all untagged traffic by default, making it a reserved VLAN that is always present in the VLAN database.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
VLAN 1
Why this is correct
VLAN 1 is the default and cannot be removed.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
VLAN 1002-1005
Why it's wrong here
These are default token ring/FDDI VLANs but not the most reserved.
- ✗
VLAN 3968-4047
Why it's wrong here
These are reserved for internal use on some platforms.
- ✗
VLAN 4094
Why it's wrong here
Reserved for some features but not the primary reserved.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that VLANs 1002-1005 are reserved on all platforms, but on Nexus switches these legacy VLANs are not present, and the trap is that candidates confuse classic IOS behavior with NX-OS behavior.
Detailed technical explanation
How to think about this question
On Cisco Nexus switches, VLAN 1 is the default VLAN and is automatically created upon initial boot. It cannot be deleted or shut down, and all ports belong to VLAN 1 by default unless explicitly assigned to another VLAN. This behavior is defined in the IEEE 802.1Q standard, which mandates that untagged frames are associated with the native VLAN (default VLAN 1). In real-world scenarios, network administrators often change the native VLAN to a non-default value for security reasons, but VLAN 1 remains reserved and cannot be removed.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Visual reference
What to study next
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FAQ
Questions learners often ask
What does this 350-601 question test?
Network — This question tests Network — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: VLAN 1 — VLAN 1 is the default VLAN on Cisco Nexus switches and cannot be deleted or renamed. It is automatically created on all switches and carries all untagged traffic by default, making it a reserved VLAN that is always present in the VLAN database.
What should I do if I get this 350-601 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
This 350-601 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-601 exam.
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