Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A contractor connects a personal tablet to a lobby Ethernet jack. The network team wants the device blocked from internal resources until it passes posture checks and only guest access is allowed meanwhile. Which control best fits?
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
A data loss prevention platform that inspects file transfers.
DLP helps protect data in motion or at rest, but it does not control device admission to the network.
B
Best answer
Network access control that verifies the device before granting access.
NAC is designed to admit, deny, or segment devices based on identity, posture, and policy before they reach internal resources.
C
Distractor review
A network intrusion detection system placed inline at the switch.
IDS is mainly for alerting on suspicious traffic, not for enforcing device admission or guest-only placement.
D
Distractor review
A VPN concentrator that encrypts remote traffic back to headquarters.
VPNs secure remote connectivity, but they do not decide whether a local device may join the wired network.
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: Network access control that verifies the device before granting access. — Network access control is the best choice because it enforces endpoint admission policy before devices reach trusted internal networks. NAC can check identity, device health, and compliance status, then place the device into a guest VLAN or quarantine network until it meets requirements. That directly matches the need to block an unmanaged tablet from internal resources while still allowing limited access. Why others are wrong: DLP watches for sensitive data leaving the organization, not for deciding whether a device can connect. IDS can detect malicious traffic but does not typically enforce admission policy. A VPN concentrator protects remote access sessions, but this situation involves a local wired connection and requires network admission control rather than tunneling.
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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