Comprehensive Detailed Explanation:

When troubleshooting intermittent connectivity issues with known source and destination IPs, the Follow the path methodology is most suitable. This involves tracing the packet flow from source to destination step-by-step, checking each device or segment for failures.

Spot the difference compares configurations, which is less targeted here.

Divide and conquer isolates sections but follow the path is more direct for connectivity.

Top-down/bottom-up is more general troubleshooting.