CompTIA Network+ (N10-007) — Question 642

A network technician installs a new Layer 3 switch in the accounting office. Which of the following should the technician configure on the switch to enhance network security?

Answer options

• A. Spanning tree
• B. Access control list
• C. QoS settings
• D. Duplex settings

Correct answer: B

Explanation

Configuring an Access Control List (ACL) on the switch is crucial for enhancing network security as it allows the technician to define which traffic is permitted or denied. Options A, C, and D do not directly contribute to security; Spanning Tree is for preventing loops, QoS is for managing bandwidth, and Duplex settings relate to data transmission efficiency.