NVIDIA's Data Center GPU Manager (DCGM) is specifically designed to monitor GPU health and performance in real-time, making it the most effective solution for proactively detecting and resolving issues like workload failures or slowdowns. DCGM provides detailed telemetry, including GPU utilization, memory usage, temperature, and error states, and supports health checks and alerts to notify administrators of anomalies (e.g., GPU faults, thermal throttling). Option A (weekly log reviews) is reactive and too slow for real-time issue detection in an AI data center. Option B (monitoring uptime and latency) provides indirect metrics but lacks GPU-specific insights critical for diagnosing failures. Option D (automatic restarts) addresses symptoms without identifying root causes, risking recurring issues. NVIDIA's official DCGM documentation emphasizes its role in cluster management, offering automated diagnostics and integration with tools like Prometheus for proactive monitoring, ensuring optimal GPU performance.