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SG0-001 · Question #530

While testing access to Server A on a remote subnet, a storage administrator is unable to connect from their workstation. The administrator is only able to connect to Server B which resides on the sam

The correct answer is C. VLAN. When one user can reach a remote server but another cannot, despite being able to access local resources, a specific network configuration issue on the failing workstation's path to the remote subnet is indicated.

Storage Connectivity

Question

While testing access to Server A on a remote subnet, a storage administrator is unable to connect from their workstation. The administrator is only able to connect to Server B which resides on the same subnet as their workstation. A coworker is able to access Server A from their workstation. Which of the following is MOST likely misconfigured?

Options

  • AFirewall rules
  • BFaulty network cable
  • CVLAN
  • DIP address

How the community answered

(15 responses)
  • A
    7% (1)
  • B
    13% (2)
  • C
    73% (11)
  • D
    7% (1)

Why each option

When one user can reach a remote server but another cannot, despite being able to access local resources, a specific network configuration issue on the failing workstation's path to the remote subnet is indicated.

AFirewall rules

While firewall rules can block access, the coworker's ability to access Server A implies that Server A's firewall is likely configured correctly, making a firewall rule on the administrator's workstation less likely if local access works.

BFaulty network cable

A faulty network cable would typically prevent *any* network access from the workstation, including to Server B on the same subnet, which contradicts the problem statement.

CVLANCorrect

If the administrator can reach servers on the local subnet but not a remote one, and a coworker on the same subnet *can* reach the remote server, it strongly suggests a network configuration issue specific to the administrator's workstation, such as a misconfigured VLAN on their network port which would prevent communication with devices on other subnets or segment the workstation incorrectly.

DIP address

An incorrect IP address on the administrator's workstation would likely prevent all network access, or at least access to Server B on the same subnet, if it were outside the correct range.

Concept tested: Network troubleshooting - VLAN configuration

Source: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12-2_55_se/configuration/guide/scg/swvlan.html

Topics

#Network troubleshooting#Firewall rules#Subnetting#Remote access

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