A. Set ArcGIS Server log level to ERROR only
B. Increase log level to INFO or WARNING and review logs
C. Query the REST Admin Directory for service health
D. Disable REST API logging
E. Rely solely on WebGISDR
Explanation:
INFO/WARNING log levels provide context for failures; the REST Admin Directory lets you check service status in real time. ERROR-only or disabling logs reduces visibility, and WebGISDR is for backup/restore, not live troubleshooting.