What types of monitoring are periodic and continuous?

• A. Nearside-Farside.
• B. Boundary of contamination.
• C. Area monitoring.
• D. Grid.

Answer: (C)

Understanding how monitoring is applied helps here: monitoring can be continuous, with real-time data from fixed detectors, or periodic, with scheduled checks. Area monitoring is the approach that covers an entire defined space and is used to detect contamination across the whole zone. Because it can be implemented with fixed instruments for ongoing, real-time vigilance or with portable devices used at set intervals, it naturally supports both continuous and periodic monitoring. The other options describe specific aspects or methods rather than the broad type of monitoring itself. Boundary monitoring looks at the edge of a contaminated area, nearside-farside isn’t a standard monitoring category, and grid refers to how you sample within the area rather than the monitoring type.