200-150 Question #149: Real Exam Question with Answer & Explanation

The correct answer is C: show flogi database. On Cisco MDS switches, the 'show flogi database' command reveals all devices that completed a Fabric Login, including their World Wide Node Names (WWNN) and World Wide Port Names (WWPN) per interface.

Question

An administrator connected a new server to a Cisco MDS 9222i on port fc 1/5, but did not capture the world wide node of the host bus adapter. Which command returns the needed information?

Options

Ashow wwn status
Bshow hosts
Cshow flogi database
Dshow interface fc 1/5

Explanation

On Cisco MDS switches, the 'show flogi database' command reveals all devices that completed a Fabric Login, including their World Wide Node Names (WWNN) and World Wide Port Names (WWPN) per interface.

Common mistakes.

A. 'show wwn status' displays the WWN block assignments of the MDS switch itself, not the WWNs of devices connected to its ports.
B. 'show hosts' is not a standard Cisco MDS NX-OS command used to display Fabric Login records or HBA WWN information.
D. 'show interface fc 1/5' displays interface-level operational statistics, counters, and link state for the port, but does not show the WWNN or WWPN of the connected device.

Concept tested. Cisco MDS FLOGI database command for HBA WWN discovery

Reference. https://www.cisco.com/c/en/us/td/docs/storage/mds9000/sw/7_3/command/reference/mds9000_cmd_ref_7_3/show_f_commands.html

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