Final answer:
The correct answer regarding the infrastructure metrics monitored by OneAgent on a host is (a) CPU, memory, disk, and network usage.
Step-by-step explanation:
The components on a host that are monitored by OneAgent focusing on infrastructure metrics are:
- CPU, memory, disk, and network usage
- Application logs and system files
- Service dependencies and external connections
- Application-specific configurations and processes
However, the most accurate answer that aligns with the question's request to focus on infrastructure metrics would be (a) CPU, memory, disk, and network usage. These metrics represent the fundamental resources OneAgent monitors to ensure the host system's performance and stability.