200-301 Question 49
Single answerAn organization is designing a data center network using the spine-leaf architecture. The design requires consistent low-latency communication between servers and the ability to scale horizontally as the organization grows. Which characteristic of the spine-leaf architecture directly addresses these requirements?
- A
Every leaf switch connects to every spine switch, ensuring equal-cost paths.
- B
Spine-leaf networks use a ring topology to minimize latency.
- C
Leaf switches handle all inter-server traffic, reducing the need for additional spine switches.
- D
Spine switches connect directly to end devices, eliminating the need for leaf switches.
Show answer and explanation
Correct answer: A
Explanation
The spine-leaf architecture is designed for scalability and low-latency communication. By ensuring every leaf switch connects to every spine switch, the architecture maintains equal-cost paths between any two endpoints, enabling predictable performance and horizontal scaling.
- A. Correct.
Correct: In a spine-leaf architecture, every leaf switch connects to every spine switch, creating equal-cost paths between any two endpoints. This ensures low-latency and consistent communication as the network scales horizontally.
- B. Incorrect.
Incorrect: Spine-leaf networks do not use a ring topology. Instead, they use a two-tier architecture consisting of spine and leaf switches, which ensures scalability and low latency.
- C. Incorrect.
Incorrect: Leaf switches do not solely handle inter-server traffic. Traffic between servers in different racks is forwarded to spine switches to maintain balanced and efficient communication.
- D. Incorrect.
Incorrect: Spine switches do not connect directly to end devices. End devices connect to leaf switches, which in turn connect to spine switches.