Question 1hardmulti select
Full question →hardmulti selectObjective-mapped
A technician reports that users on a guest wireless SSID can reach the internet but can also browse internal file shares, which should be blocked. Which two design actions most directly address that issue?
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
Best answer
Place guest clients in a separate VLAN or VRF from internal users
Segmentation is the core control that isolates guest traffic from corporate resources.
B
Best answer
Apply ACL policy that denies guest access to internal subnets while permitting internet access
Traffic policy is needed to enforce the intended access boundaries.
C
Distractor review
Increase the AP transmit power
RF coverage does not address segmentation or access control.
D
Distractor review
Disable DHCP on the guest WLAN
That would break guest connectivity rather than isolate internal resources properly.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is to confuse wireless coverage or connectivity settings with security controls. For example, disabling DHCP on the guest WLAN might seem like a way to block guest access to internal resources, but it actually prevents guests from obtaining IP addresses, breaking their internet connectivity rather than isolating internal file shares. Similarly, increasing AP transmit power affects signal reach but does nothing to separate guest traffic from internal users. The trap is to overlook the necessity of logical segmentation and explicit ACL policies, which are the correct mechanisms to enforce access restrictions in Cisco wireless networks.
Technical deep dive
How to think about this question
Segmentation in network design is a fundamental security principle that isolates different user groups or traffic types to prevent unauthorized access. In wireless networks, placing guest clients in a separate VLAN or VRF creates distinct broadcast domains, ensuring guest traffic is logically separated from internal corporate resources. This separation limits the scope of broadcast traffic and enforces boundaries at Layer 2, which is critical for controlling access to sensitive internal file shares and services. Access Control Lists (ACLs) complement segmentation by providing explicit traffic filtering rules. Applying ACLs on the guest VLAN interface or at routing boundaries can deny guest clients access to internal subnets while still allowing internet access. This policy enforcement ensures that even if guests are on the same physical infrastructure, their traffic is restricted by Layer 3 rules, preventing unauthorized browsing of internal file shares and enhancing overall network security. A common exam trap is assuming that simply disabling DHCP or adjusting wireless AP transmit power will isolate guest traffic. These actions do not enforce segmentation or access control and can disrupt connectivity or coverage without improving security. The practical behavior in Cisco networks is that VLAN separation combined with ACL enforcement is the standard method to isolate guest wireless users effectively, ensuring compliance with security policies and preventing lateral movement within the network.
KKey Concepts to Remember
- A VLAN creates a separate broadcast domain that isolates guest wireless clients from internal corporate users at Layer 2.
- A VRF provides logical separation of routing tables, further isolating guest traffic from internal network resources.
- ACLs enforce traffic filtering by permitting or denying specific IP subnets, controlling guest access to internal file shares.
- Segmentation combined with ACLs prevents unauthorized lateral movement from guest wireless clients to internal servers.
- Disabling DHCP on a guest WLAN breaks client connectivity and does not provide proper traffic isolation or security.
- Increasing AP transmit power affects RF coverage but does not control network segmentation or access permissions.
- Cisco devices use VLAN tagging and ACLs as standard mechanisms to enforce security boundaries in wireless deployments.
- Proper network design requires both segmentation and policy enforcement to ensure guest users only access the internet.
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.
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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 router learns the same prefix from both OSPF and EIGRP. Which route is installed by default?
Question 2
A router shows this output: R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.1.1.2 1 FULL/DR 00:00:34 192.168.12.2 GigabitEthernet0/0 10.1.1.3 1 2WAY/DROTHER 00:00:39 192.168.12.3 GigabitEthernet0/0 Which statement is correct?
Question 3
What is the OSPF metric called?
Question 4
A non-root switch has two uplinks toward the root bridge. One path has a lower total STP cost than the other. What role will the lower-cost uplink have?
Question 5
A router interface applies this ACL inbound: 10 deny tcp any any eq 80 20 permit ip any any A user reports that web browsing to a server by IP address fails, but ping works. Which statement best explains the behavior?
Question 6
A router learns route 198.51.100.0/24 from OSPF with AD 110 and also has a static route to the same prefix configured with AD 150. Which route is installed?
FAQ
Questions learners often ask
What does this 200-301 question test?
A VLAN creates a separate broadcast domain that isolates guest wireless clients from internal corporate users at Layer 2.
What is the correct answer to this question?
The correct answer is: Place guest clients in a separate VLAN or VRF from internal users — Guest access should be isolated through segmentation and policy enforcement. Separate broadcast domains and ACLs are the practical way to allow internet-only access.
What should I do if I get this 200-301 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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