What action can you take to allow traffic through while blocking other categories in content filtering?

Setting the category to Allow is the appropriate action to permit specific traffic while blocking other categories in content filtering. When you configure a category to Allow, you enable traffic from that particular category to pass through the firewall unimpeded, effectively prioritizing it over other content filtering rules that may restrict access.

This configuration is particularly useful when you want to ensure that particular websites or services are accessible for users while maintaining strict control over other content types that may be deemed inappropriate or harmful. By implementing the Allow setting, you can customize the content filtering to suit your organization's needs, providing both safety and accessibility.

In contrast, the other options would either impose restrictions or not provide the intended flexibility. For instance, setting a category to Block would deny access altogether, and using Passphrase or Confirm would introduce additional steps or require user action, which does not achieve the objective of straightforwardly allowing traffic.