If you are using a program to monitor your network traffic, the program may show data for a computer with Malwarebytes for Windows installed that is making multiple DNS queries for websites in their exclusions list. Refer to the following articles on how to set up exclusions in Malwarebytes for Windows version 4:
This is expected behavior. When you set up a website exclusion in Malwarebytes for Windows, you have the option to Exclude a domain or Exclude an IP Address. When exclude a domain is selected, Malwarebytes for Windows will query for the IP address of the excluded domain so it can also add the IP address to the Allow List.