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HP0-J73 · Question #134

Refer to the exhibit. A company has a Fibre Channel-based SAN in their data center based on 2 GB SAN switches. The switches are connected as shown in the exhibit. Which SAN topology is described by th

The correct answer is D. Cascade. A cascade topology connects Fibre Channel switches in a sequential daisy-chain, where each switch links directly to the next rather than to a central hub switch.

Identifying HP Storage Solutions and Architectures

Question

Refer to the exhibit. A company has a Fibre Channel-based SAN in their data center based on 2 GB SAN switches. The switches are connected as shown in the exhibit. Which SAN topology is described by this configuration?

Exhibit

HP0-J73 question #134 exhibit

Options

  • ACore-edge
  • BRing
  • CMesh
  • DCascade

How the community answered

(27 responses)
  • B
    4% (1)
  • D
    96% (26)

Why each option

A cascade topology connects Fibre Channel switches in a sequential daisy-chain, where each switch links directly to the next rather than to a central hub switch.

ACore-edge

Core-edge topology requires a dedicated high-port-count core switch that edge switches connect to in a hub-and-spoke arrangement, not a simple peer-to-peer switch link.

BRing

A ring topology forms a closed loop where the last switch in the chain connects back to the first switch.

CMesh

A mesh topology requires direct links between every switch in the fabric, providing full interconnect redundancy.

DCascadeCorrect

In a cascade (also called daisy-chain) topology, switches are connected end-to-end in a linear series, which matches the described two-switch configuration connected as shown. This design is simple and inexpensive but increases inter-switch hop count and limits scalability as the fabric grows.

Concept tested: Fibre Channel SAN cascade switch topology

Source: https://www.cisco.com/c/en/us/products/collateral/storage-networking/mds-9000-series-multilayer-switches/white-paper-c11-729280.html

Topics

#SAN topology#cascade topology#Fibre Channel switches#switch connectivity

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