300-320 · Question #350
An Engineer is designing a Cisco Application Centric Infrastructure network. What is the expected number of links between Spine switches?
The correct answer is A. 0. Cisco ACI uses a strict spine-leaf (Clos) architecture. A fundamental rule of this design is that spine switches NEVER connect directly to other spine switches-the expected link count between spines is zero. All east-west and north-south traffic flows through leaf switches…
Question
An Engineer is designing a Cisco Application Centric Infrastructure network. What is the expected number of links between Spine switches?
Options
- A0
- B1
- C2
- D4
How the community answered
(51 responses)- A88% (45)
- B6% (3)
- C4% (2)
- D2% (1)
Explanation
Cisco ACI uses a strict spine-leaf (Clos) architecture. A fundamental rule of this design is that spine switches NEVER connect directly to other spine switches-the expected link count between spines is zero. All east-west and north-south traffic flows through leaf switches. Spine-to-spine links would create loops and violate the two-tier ACI model. Each leaf connects to every spine, and spines connect only to leaf nodes (and external networks via border leaves).
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