What management tool should be used to ensure logging capability for Azure virtual machine operations?

The Azure Monitor agent is the correct choice for ensuring logging capability for Azure virtual machine operations. This tool is designed to collect telemetry data from Azure virtual machines, including performance metrics and log data. By utilizing the Azure Monitor agent, you can gain insights into the operational health, performance, and usage of your virtual machines. It integrates deeply with Azure Monitor, providing a unified view of all logs and metrics, which is essential for monitoring, troubleshooting, and optimizing your virtual machine environments.

Using the Azure Monitor agent allows you to collect and analyze data in real-time, enabling proactive management of resources and the detection of any anomalies that may arise during operations. It supports a variety of data types, such as application logs, performance counters, and infrastructure logs, which are crucial for comprehensive monitoring and logging.

The other options mentioned do not primarily focus on logging for Azure virtual machine operations. Azure Policy is used to enforce compliance across Azure resources but does not handle logging directly. Azure Bastion Service provides secure and seamless RDP and SSH connectivity to virtual machines but lacks the logging capabilities needed for operational insights. Network Watcher is focused on monitoring and troubleshooting network traffic, which does not encompass logging for virtual machine operations specifically.