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When you create an object, such as an on-prem a host, you can define the tag key and associated value(s) for the object, so you can easily locate the object in the future. For example, you can create a tag key called "Location" with a value of "London, UK" when you create an on-prem a host, so you can specify its location. You can then use the same "Location = London, UK" tag for other objects that share the same attribute. This is useful when you want to identify all the on-prem hosts and networks that are in London, UK. All you need to do is filter or search using the tag key = "Location" and the value = "London, UK" after you have assigned the tag to the relevant objects.
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