Case assignment rules are used to automatically assign cases to users or queues based on certain criteria, such as case origin, type, priority, or product. Queues are collections of records that can be accessed by multiple users who share the same job function or skill. By configuring case assignment rules to use queues, the Support Manager can ensure that cases are distributed evenly across the team and that agents can work on the cases that match their expertise or availability. Verified References: Service Cloud Consultant Certification Guide & Tips, Set Up Case Assignment Rules, Set Up Queues