Which of the following provides a standards-based process to help identify IoT device capabilities?

MUD, or Manufacturer Usage Description, provides a standards-based process specifically designed to help identify the capabilities of IoT devices. This model allows device manufacturers to define the expected behavior and network access requirements for their devices in a standardized format. By leveraging MUD, network operators can create policies that ensure appropriate access control based on the defined capabilities of each device.

This is particularly important in the context of IoT devices, which often have unique communication patterns and requirements compared to traditional computing devices. MUD allows for a more granular approach to security and resource management, enabling better informed decisions on how and where these devices can interact within the network.

The other options, while useful in different contexts, do not specifically address the identification of IoT device capabilities through a standardized process. SNMP queries and traps are related to device monitoring and management but do not inherently provide a framework for defining device capabilities. pxGrid offers a framework for sharing context between various security applications but does not center around the identification of IoT capabilities in the same way that MUD does.