Additional Topics > Medical Imaging in IDL > Using IDL DICOM Network Services > Querying a Remote Machine

# Querying a Remote Machine

The Query/Retrieve functionality of the DICOM Network Services utility is located on the Query Retrieve SCU tab. Once you have defined a Query SCP Application Entity for one or more file source devices (as described in Defining a Machine to Be Queried), you can query the remote machine. If you have also defined a Storage SCP service (defined in Configuring Your System to Receive Files), you can return requested files to a specified directory. This section covers topics related to configuring queries and retrieving files:

- Configure Query SCU Service Properties
- Query the Remote Node
- Build or Modify a Custom Query
- Retrieve Files from a Remote Node

Note: The Query Retrieve SCU tab is not available if you start the DICOM Network Services utility with the SYSTEM keyword.

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