CCDE: Cisco Certified Design Expert (Written) — Question 51

A switched network is being designed to support a manufacturing factory. Due to cost constraints, fiber-based connectivity is not an option. Which design allows for a stable network when there is a risk of interference from the manufacturing hardware in use on the factory floor?

Answer options

• A. Design the network to include UDLD to detect unidirectional links and take them out of service.
• B. Design the network to include EtherChannel bundles to prevent a single-link failure from taking down a switch interconnection point.
• C. Design the network to include loop guard to prevent a loop in the switched network when a link has too much interference.
• D. Design the network to include BackboneFast on all devices to accelerate failure convergence times.

Correct answer: A

Explanation

The correct answer is A because UDLD (Unidirectional Link Detection) helps to identify and disable unidirectional links that can cause network instability, especially in environments with potential interference. Options B, C, and D, while useful for different network issues, do not specifically address the concern of interference impacting link directionality, which is crucial in this scenario.