CCNA: Cisco Certified Network Associate — Question 568

What is a function spine-and-leaf architecture?

Answer options

• A. Offers predictable latency of the traffic path between end devices.
• B. Exclusively sends multicast traffic between servers that are directly connected to the spine.
• C. Mitigates oversubscription by adding a layer of leaf switches.
• D. Limits payload size of traffic within the leaf layer.

Correct answer: A

Explanation

The correct answer is A, as spine-and-leaf architecture is designed to ensure predictable latency for data transmission between end devices. Option B is incorrect because it describes a limitation of traffic types rather than a feature of the architecture. Option C, while related to performance, does not accurately describe the primary function of the architecture, and D incorrectly suggests a limitation that is not inherent to spine-and-leaf designs.