Refer to the exhibit.

The exhibit shows an access rule for URL filtering that has the following conditions:

The action is Block

The URL category is Botnets

The URL reputation is 3

The URL list is empty

This means that the rule will block any URL that matches the category and reputation criteria, regardless of the individual URL. According to the Cisco documentation1, the URL reputation is a score from 1 to 5 that indicates the risk level of a URL, where 1 is the most risky and 5 is the least risky. Therefore, a reputation score of 3 means a moderate risk level. The rule will not block URLs for botnets with reputation scores of 1, 2, 4, or 5, nor will it block any other URL category or list. The rule will also not allow any URL, as the action is Block, not Allow.

References := 1: Implementing and Operating Cisco Security Core Technologies (SCOR) v1.0, Module 4: Securing the Cloud, Lesson 4.3: Cloud Application Security, Topic 4.3.2: Cisco Umbrella, page 4-58.