CCNA: Cisco Certified Network Associate — Question 1337

Which WAN topology has the highest degree of reliability?

Answer options

• A. point-to-point
• B. router-on-a-stick
• C. full mesh
• D. hub-and-spoke

Correct answer: C

Explanation

The full mesh topology is the most reliable because it connects every device to every other device, ensuring that there are multiple paths for data to travel. In contrast, point-to-point has limited connectivity, router-on-a-stick requires a single point of failure, and hub-and-spoke relies on a central hub, which can be a single point of failure as well.