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XK0-005 · Question #321

Users are reporting collaborate.company.com is inaccessible from the user VLAN, but there is no issue connecting to the system's web page from the DMZ. Given the following outputs from commands run…

The correct answer is C. Users cannot access the system because the connectivity port is running on the incorrect IP. The. The problem describes a system accessible from the DMZ but not from the user VLAN, indicating a network configuration issue specifically preventing user VLAN access. The correct answer points to the system's network interface running on an incorrect IP address.

Troubleshooting

Question

Users are reporting collaborate.company.com is inaccessible from the user VLAN, but there is no issue connecting to the system’s web page from the DMZ. Given the following outputs from commands run on the system:

Which of the following explains why users are unable to access the system from the user VLAN, and how can the administrator remediate this issue?

Options

  • AUsers cannot access the system because the IP subnet mask is /24. The remediation for this
  • BUsers cannot access the system because the DNS server has the incorrect IP address. The
  • CUsers cannot access the system because the connectivity port is running on the incorrect IP. The
  • DUsers cannot access the system because the default gateway has the wrong interface. The

How the community answered

(25 responses)
  • A
    24% (6)
  • B
    12% (3)
  • C
    60% (15)
  • D
    4% (1)

Why each option

The problem describes a system accessible from the DMZ but not from the user VLAN, indicating a network configuration issue specifically preventing user VLAN access. The correct answer points to the system's network interface running on an incorrect IP address.

AUsers cannot access the system because the IP subnet mask is /24. The remediation for this

An IP subnet mask of /24 is a common and valid subnet size and does not inherently cause inaccessibility between different VLANs if routing is configured correctly.

BUsers cannot access the system because the DNS server has the incorrect IP address. The

An incorrect DNS server IP address would affect name resolution but not direct IP connectivity, and since the system is accessible from the DMZ, the service is running.

CUsers cannot access the system because the connectivity port is running on the incorrect IP. TheCorrect

If the system's connectivity port is configured with an IP address that is not routable or not intended for the user VLAN, users on that VLAN would be unable to reach it. For example, if it's on a DMZ IP not accessible from the user VLAN, users would face connectivity issues, and remediation involves correcting the IP address or routing.

DUsers cannot access the system because the default gateway has the wrong interface. The

If the default gateway had the wrong interface, the system would likely have broader connectivity issues, potentially including inability to reach the DMZ or external networks, which contradicts the problem statement.

Concept tested: Network troubleshooting and IP addressing

Topics

#Network Troubleshooting#IP Addressing#Network Interfaces#Network Segmentation

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