CompTIA Network+ (N10-009) — Question 132

A network administrator is expanding a network and wants to ensure no unauthorized redundant links are present. Which of the following should the administrator use to identify and block redundant links?

Answer options

• A. SDN
• B. STP
• C. LLDP
• D. OSPF

Correct answer: B

Explanation

The correct answer is B, STP (Spanning Tree Protocol), which is designed to prevent loops in network topologies by identifying and blocking redundant paths. The other options, such as SDN (Software-Defined Networking), LLDP (Link Layer Discovery Protocol), and OSPF (Open Shortest Path First), do not specifically address the issue of redundant links in the same way STP does.