What is the role of a network security officer?

• A. To design network topology.
• B. To monitor and protect an organization's network from security threats.
• C. To manage marketing campaigns.
• D. To maintain end-user devices physically.

Answer: (B)

The role focuses on monitoring and protecting an organization’s network from security threats. A network security officer is responsible for guarding assets by analyzing traffic, detecting and responding to intrusions, enforcing security policies, managing access controls, and configuring security devices like firewalls and intrusion prevention systems. They also handle incident response, vulnerability management, and compliance with security standards, keeping the network's defense active and up to date.

Designing network topology is about planning the layout and performance of the network, which is typically done by a network architect or engineer. Managing marketing campaigns is unrelated to network security. Maintaining end-user devices physically is about hardware upkeep and device provisioning, not ongoing network protection.