Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
Exhibit
Access switch VLAN table: VLAN 10 - Corporate workstations - 126 devices VLAN 10 - VoIP phones - 41 devices VLAN 10 - Badge readers - 18 devices VLAN 10 - Cameras - 24 devices VLAN 20 - Guest Wi-Fi - Internet only Incident note: A compromised workstation was able to reach a badge reader and a camera using internal IP addresses.
Based on the exhibit, which network redesign would best limit lateral movement between user endpoints and building systems after a workstation compromise?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Move every device into a single flat subnet so internal routing is simpler.
A flat network increases lateral movement opportunities and makes compromise containment much harder. It does not create separate trust boundaries.
B
Best answer
Separate workstations, phones, badge readers, and cameras into different VLANs with ACLs or firewall rules between them.
Separating device classes into distinct VLANs creates clear trust boundaries and limits what a compromised endpoint can reach. Inter-VLAN ACLs or firewall rules can then enforce only the necessary traffic paths, such as management or service traffic. This reduces lateral movement from a workstation to sensitive building systems like cameras and badge readers.
C
Distractor review
Keep the design unchanged and rely on antivirus on the workstations to block access to the cameras.
Antivirus may detect malware on the endpoint, but it does not enforce network segmentation or stop direct access to other device classes. The architecture remains overly permissive.
D
Distractor review
Put all traffic through the guest Wi-Fi VLAN to isolate it from the corporate network.
Guest VLANs are usually meant for internet-only access and would break internal services for managed devices. It would not properly separate sensitive building systems from workstations.
Common exam trap
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.
Technical deep dive
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.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A laptop is suspected of being used in a malware incident. It is still powered on and connected to Wi-Fi. What should the responder do before shutting it down?
Question 2
An employee reports a ransomware note on a file server. The server is still powered on, shares are still being accessed, and management wants service restored as quickly as possible. What should the incident response team do first?
Question 3
An employee reports a ransomware note on a finance laptop. The laptop is still powered on, connected to Wi-Fi, and the user says they were just working in a spreadsheet. Management wants the fastest safe response that also preserves evidence. What should the responder do first?
Question 4
You are handed a company laptop suspected in an insider theft case. Legal says the evidence may be needed in court. Which action best preserves admissibility?
Question 5
A developer wants to reduce the risk of SQL injection in a new customer search form. Which two changes are the best mitigations? Select two.
Question 6
A branch office uses a flat LAN, and a compromise on one user workstation could spread quickly to finance systems. Management wants finance workstations isolated from general users, but finance staff still need access to a central finance application and network printer. What is the best design change?
FAQ
Questions learners often ask
What does this SY0-701 question test?
Access ports place end devices into a single VLAN.
What is the correct answer to this question?
The correct answer is: Separate workstations, phones, badge readers, and cameras into different VLANs with ACLs or firewall rules between them. — The best redesign is to separate workstations, phones, badge readers, and cameras into different VLANs and control communication with ACLs or firewalls. That approach enforces trust boundaries between device classes, so a compromise on one workstation does not automatically permit access to building systems. It is a practical defense-in-depth measure that directly addresses the lateral-movement problem shown in the exhibit. Why others are wrong: A single flat subnet makes compromise impact worse, not better. Antivirus is useful but does not segment the network. Sending all traffic through the guest VLAN would be operationally disruptive and would not properly model access needs for corporate and facility systems.
What should I do if I get this SY0-701 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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