A department decided to replace its hub with a Catalyst 2950 switch that is no longer needed by another department. To prepare the switch for installation, the network administrator has erased the…

Question

Exhibit

Options

• AThe VLAN database was not erased.
• BThe management VLAN is disabled.
• CThe running configuration should have been erased.
• DThe "mode" button was not pressed when the switch was reloaded.
• EThe switch was not configured with an IP address or a default gateway.

• A
  82% (23)
• C
  11% (3)
• D
  4% (1)
• E
  4% (1)

Explanation

On a Cisco Catalyst 2950 (and most Catalyst switches), the VLAN database is stored in a separate file called vlan.dat in flash memory - it is NOT part of the startup configuration. When the administrator erased the startup config and reloaded the switch, the previous department's custom VLAN assignments were preserved in vlan.dat. As a result, switch ports may still belong to old VLANs that no longer match the intended network design, causing connectivity problems for the newly connected PCs. To fully reset a Catalyst switch, you must also delete the VLAN database using the command 'delete flash:vlan.dat' before reloading.

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