LPIC-2 Advanced Networking Configuration Practice Question
This LPIC-2 practice question tests your understanding of advanced networking configuration. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
A company's network has a single switch connecting all devices. The IT manager wants to isolate the development team's traffic from the rest of the network without buying new hardware. Which configuration should the administrator implement on the switch ports connected to the development team's computers?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set the ports to access mode and assign them to VLAN 10.
VLANs (Virtual Local Area Networks) logically segment a network at Layer 2, isolating traffic between groups without requiring additional hardware. Setting the switch ports to access mode and assigning them to VLAN 10 places the development team's computers into a separate broadcast domain, preventing their traffic from being visible to devices in other VLANs. This is the standard method for implementing port-based VLAN membership on a managed switch.
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.
✓
Set the ports to access mode and assign them to VLAN 10.
Why this is correct
VLANs isolate traffic at L2, and access ports assign the port to a specific VLAN, creating separate broadcast domains.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable port security with a maximum MAC address count.
Why it's wrong here
Port security limits the number of MAC addresses on a port but does not segregate traffic.
✗
Configure the switch ports as part of a bridge group.
Why it's wrong here
A bridge group logically connects ports at L2; it does not isolate traffic.
✗
Set the ports to trunk mode.
Why it's wrong here
Trunk mode is used to carry multiple VLANs between switches, not to isolate a set of ports.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse trunk mode (used for inter-switch links) with access mode (used for end devices), mistakenly thinking trunking provides isolation when it actually aggregates VLAN traffic.
Detailed technical explanation
How to think about this question
When a port is in access mode, the switch strips any VLAN tags from incoming frames and assigns them to the configured VLAN (e.g., VLAN 10). Frames from that port are only forwarded to other ports in the same VLAN, effectively creating a separate broadcast domain. The IEEE 802.1Q standard defines VLAN tagging, but access ports use untagged frames, making them transparent to the connected end device.
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Advanced Networking Configuration — This question tests Advanced Networking Configuration — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Set the ports to access mode and assign them to VLAN 10. — VLANs (Virtual Local Area Networks) logically segment a network at Layer 2, isolating traffic between groups without requiring additional hardware. Setting the switch ports to access mode and assigning them to VLAN 10 places the development team's computers into a separate broadcast domain, preventing their traffic from being visible to devices in other VLANs. This is the standard method for implementing port-based VLAN membership on a managed switch.
What should I do if I get this LPIC-2 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.
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Question Discussion
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