CompTIA Network+ (N10-008) — Question 328

A customer reports there is no access to resources following the replacement of switches. A technician goes to the site to examine the configuration and discovers redundant links between two switches. Which of the following is the reason the network is not functional?

Answer options

• A. The ARP cache has become corrupt.
• B. CSMA/CD protocols have failed.
• C. STP is not configured.
• D. The switches are incompatible models.

Correct answer: C

Explanation

The lack of proper configuration for Spanning Tree Protocol (STP) is causing the network to malfunction due to the presence of redundant links, which can create loops. The other options do not accurately describe the issue; for instance, a corrupt ARP cache, failed CSMA/CD protocols, or incompatible switch models would not directly result from redundant links without STP in place.