350-401 · Question #868
Which of the following are the two components of the two-tier modern data center design? (Choose two.)
The correct answer is D. Leaf E. Spine. The modern two-tier data center design, known as Spine-Leaf, utilizes Leaf switches for server connectivity and Spine switches for high-speed inter-Leaf communication.
Question
Options
- ADistribution
- BCore
- CAccess
- DLeaf
- ESpine
How the community answered
(29 responses)- A7% (2)
- C3% (1)
- D90% (26)
Why each option
The modern two-tier data center design, known as Spine-Leaf, utilizes Leaf switches for server connectivity and Spine switches for high-speed inter-Leaf communication.
Distribution is a component of the classical three-tier hierarchical network design, not the modern two-tier data center design.
Core is a component of the classical three-tier hierarchical network design, not the modern two-tier data center design.
Access is a component of the classical three-tier hierarchical network design, distinct from the Leaf layer in modern data centers, though serving a similar edge function.
Leaf switches connect directly to servers and to every Spine switch, forming the access layer and providing connectivity for endpoints in a Spine-Leaf topology.
Spine switches form the high-speed backbone of the data center, interconnecting every Leaf switch to ensure low-latency and high-bandwidth communication.
Concept tested: Modern two-tier data center design (Spine-Leaf)
Source: https://www.cisco.com/c/en/us/td/docs/solutions/CVD/DC/CVD-Data-Center-Design-Guide.html
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