Which setting is used to turn on the CFS Security Service?

The option "Enable Content Filtering Service" is the correct choice for turning on the CFS Security Service because it specifically refers to the functionality that allows SonicWall firewalls to monitor and control web traffic based on predefined content policies. The CFS, or Content Filtering Service, plays a vital role in enhancing network security by filtering out inappropriate or harmful content, thereby protecting users from accessing malicious websites and unwanted material.

This service integrates various filtering categories that network administrators can customize based on organizational needs. By enabling this service, an administrator can effectively manage access to online content and uphold company policies regarding acceptable use while also improving overall network security.

The other options refer to different security features of the SonicWall firewall. Activating Firewall Protection would pertain to general firewall operational settings, not specifically content filtering. Turning on VPN Services relates to secure remote access functionalities rather than web content monitoring. Implementing Anti-Spam Measures deals with email security and spam filtering, which is distinct from the web content filtering that CFS provides. Each of these settings serves a unique purpose, but none directly relates to the specific task of enabling the CFS Security Service.