nerdexam
Cisco

200-150 · Question #161

Refer to the exhibit. Which description of this core-edge topology is true?

The correct answer is D. The hosts connect to an edge device, which is connect to the core.. In a core-edge topology, hosts connect to edge switches which in turn connect to the core layer, creating a two-tier hierarchical design where the edge and core are distinct layers.

Cisco Data Center Networking Technologies

Question

Refer to the exhibit. Which description of this core-edge topology is true?

Exhibit

200-150 question #161 exhibit

Options

  • AThe single-hop design provides minimal latency because the storage devices and the hosts
  • BThe single-hop design from the host to the target provides a highly scalable solution.
  • CA single core switch connects the storage devices and the hosts.
  • DThe hosts connect to an edge device, which is connect to the core.

How the community answered

(15 responses)
  • C
    7% (1)
  • D
    93% (14)

Why each option

In a core-edge topology, hosts connect to edge switches which in turn connect to the core layer, creating a two-tier hierarchical design where the edge and core are distinct layers.

AThe single-hop design provides minimal latency because the storage devices and the hosts

A core-edge design is not single-hop from host to storage because traffic must traverse the edge-to-core link, introducing at least two switching hops between host and target.

BThe single-hop design from the host to the target provides a highly scalable solution.

Single-hop connectivity is not the mechanism that makes core-edge scalable; scalability comes from hierarchical aggregation at the core layer, not from minimizing hop count.

CA single core switch connects the storage devices and the hosts.

Core-edge topologies typically deploy multiple redundant core switches to eliminate single points of failure; describing a single core switch misrepresents both the redundancy requirements and the defining structural characteristic of the topology.

DThe hosts connect to an edge device, which is connect to the core.Correct

Core-edge topology places host servers at the edge layer, connected to edge switches that aggregate traffic and provide uplinks to the core switches where storage devices attach. This two-tier hierarchy creates at least a two-hop path from host to target, passing through both the edge device and the core. The description accurately reflects the standard definition of the core-edge SAN or data center fabric design.

Concept tested: Core-edge SAN topology structure and host connectivity

Source: https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DC_3_0/DC-3_0_IPInfra.html

Topics

#core-edge topology#data center topology#network design#switch connectivity

Community Discussion

No community discussion yet for this question.

Full 200-150 Practice