Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
Exhibit
Guest WLAN uses VLAN 20. Current ACL on the VLAN 20 SVI: - permit udp any eq 53 any - permit udp any eq 67 any - permit ip 10.50.20.0/24 any - deny ip any 10.0.0.0/8 - deny ip any 172.16.0.0/12 - deny ip any 192.168.0.0/16 Default route sends remaining traffic to the ISP. Requirement: guests should have internet-only access.
Based on the exhibit, which change best meets the requirement that guest devices can reach the internet but must not reach any internal subnets or printer VLANs?
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
Add more allow rules for the printer VLAN so guests can print without changing routing.
Printer exceptions broaden guest access and increase the chance of reaching internal resources unnecessarily.
B
Best answer
Move guests into a dedicated guest zone with outbound NAT and default-deny rules to internal networks.
A dedicated guest zone with outbound-only internet access enforces least privilege and keeps guests isolated from internal VLANs.
C
Distractor review
Place guest and corporate devices on the same VLAN and rely on the wireless password for separation.
A shared VLAN removes segmentation, so a Wi-Fi password alone does not stop lateral movement.
D
Distractor review
Allow guest traffic to reach internal DNS and DHCP servers across all RFC1918 subnets.
Opening internal infrastructure services to guests creates unnecessary exposure and does not satisfy internet-only access.
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: Move guests into a dedicated guest zone with outbound NAT and default-deny rules to internal networks. — The best design is a dedicated guest zone with outbound NAT and default-deny rules to internal networks. That approach keeps guest devices routed only toward the internet while preventing access to private addressing ranges and internal printer VLANs. It also preserves a simple rule set that is easier to audit than scattered exceptions. The exhibit shows the current ACL still allows broad guest traffic, so stronger zoning is the correct fix. Why others are wrong: Option A expands access instead of limiting it. Option C removes segmentation entirely and depends on the wireless password, which is not a network boundary. Option D exposes internal services to untrusted clients and still does not create a proper guest-only zone.
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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