350-601 Question #570: Real Exam Question with Answer & Explanation

Question

Refer to the exhibit. What is the result of this configuration? switch(config)# fcns proxy-port 21:00:00:b2:c5:71:32:a9 vsan 100

Options

• AIt creates a FLOGI database.
• BIt adds an entry for the name server database.
• CIt implements a mapping between the WWN and the VSAN.
• DIt enables the registration of parameters for another node.

Explanation

The fcns proxy-port command registers a Fibre Channel World Wide Name (WWN) with the Fibre Channel Name Server (FCNS) for a specific VSAN. This enables the switch to act as a proxy, registering another node's parameters into the FCNS database.

Common mistakes.

• A. This command interacts with the Name Server database by adding a proxy entry, but it does not create a FLOGI database, which is dynamically built upon device login.
• B. While the command adds an entry to the name server, option D provides a more specific and complete technical explanation of the proxy function rather than a generic 'entry'.
• C. The command facilitates the registration of a node's parameters in the FCNS, which involves its WWN and VSAN, but its primary function is not to create a simple mapping but to proxy the registration.

Concept tested. Fibre Channel Name Server (FCNS) proxy configuration

Reference. https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/7_x/command/reference/san_cr/fcns.html#wp1077583

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