CCNA: Cisco Certified Network Associate — Question 3

In which way does a spine-and-leaf architecture allow for scalability in a network when additional access ports are required?

Answer options

• A. A spine switch and a leaf switch can be added with redundant connections between them.
• B. A spine switch can be added with at least 40 GB uplinks.
• C. A leaf switch can be added with connections to every spine switch.
• D. A leaf switch can be added with a single connection to a core spine switch.

Correct answer: C

Explanation

The correct answer is C because in a spine-and-leaf architecture, adding a leaf switch with connections to all spine switches ensures that the network can handle increased traffic and maintain low latency. Options A and D do not provide the necessary connectivity for scalability, while option B specifies a requirement for uplinks that, while important, does not directly address the need for additional access ports.