200-150 Question #251: Real Exam Question with Answer & Explanation

The correct answer is D: domain ID, area ID. port ID. A Fibre Channel Identifier (FCID) is a 24-bit address assigned during fabric login that is composed of a domain ID, area ID, and port ID.

Cisco Data Center Storage

Question

In Fibre Channel networking, the FCID is composed of which set of identifiers?

Options

AVSAN ID. zone ID, port ID
BVSAN ID. area ID. port ID
Cdomain ID. zone ID. port ID
Ddomain ID, area ID. port ID

Explanation

A Fibre Channel Identifier (FCID) is a 24-bit address assigned during fabric login that is composed of a domain ID, area ID, and port ID.

Common mistakes.

A. VSAN ID is a Cisco-specific virtual fabric segmentation construct and is not part of the 24-bit FCID address structure; zone ID is an access control identifier, not an addressing field.
B. VSAN ID is not a component of the FCID; the FCID is a pure fabric address and does not encode virtual SAN membership.
C. Zone ID is a logical grouping used for access control, not an address component; the domain ID field is correct but must be paired with area ID, not zone ID, to correctly describe FCID structure.

Concept tested. Fibre Channel ID structure - domain, area, and port fields

Reference. https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/8_x/config/fundamentals/cisco_mds9000_fundamentals_config_guide_8x/overview.html

Topics

#FCID#Fibre Channel addressing#domain ID#area ID

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