By default, how often does Nessus schedule plugin updates?

• A. Every hour
• B. On-demand only
• C. Every 24 hours
• D. Weekly

Answer: (C)

Nessus keeps its vulnerability checks current by regularly fetching the plugin feed, and by default that feed is updated once per day. This 24-hour cadence ensures you have recent checks without overloading the network or the scanner with constant updates. You can still trigger updates manually or adjust the schedule if needed, but the out-of-the-box behavior is a daily update. The other options don’t fit because hourly would be excessive, weekly would leave detections less current, and on-demand only would disable automatic updates.