Explanation
Case escalation rules are a way to automatically escalate cases that meet certain criteria, such as being open for more than a specified time or having a certain priority. Escalation rules can assign cases to a different owner or queue and send email notifications to the support manager or other recipients. References:
https://help.salesforce.com/s/articleView?id=sf.case_escalation.htm&type=5

Explanation
The Knowledge Lightning component is a component that allows users to access articles from the Service Cloud Console app. However, if users want to access articles from a different app that does not use the console, they can use the Knowledge related list instead. The Knowledge related list shows articles related to a record based on data categories and shows article details such as title, summary, rating, and view count. To add the Knowledge related list to a record page, an administrator can use the page layout editor and drag and drop the Knowledge related list to the appropriate section on the page layout. References:
https://help.salesforce.com/s/articleView?id=sf.knowledge_lightning_component.htm&type=5
https://help.salesforce.com/s/articleView?id=sf.knowledge_related_list.htm&type=5

Explanation
Probability is a standard percentage field on the Opportunity object that indicates how likely an opportunity will close successfully. It is automatically calculated based on the opportunity stage unless you make it editable on page layouts. To allow sales reps to change the probability field value of their opportunities, you need to make the field editable on page layouts. References:
https://help.salesforce.com/s/articleView?id=sf.opportunity_fields.htm&type=5https://help.salesforce.com/s/artic

Explanation
To enable users to add repeating tasks in Salesforce, the administrator needs to do two things: first, enable the creation of recurring tasks in activity settings under setup; second, add the create recurring series of tasks field on the page layouts for tasks. This will allow users to create a series of tasks that repeat based on a specified frequency and end date.
References:https://help.salesforce.com/s/articleView?id=sf.tasks_repeating.htm&type=5

Explanation
Master-detail lookup is a type of relationship field that can be used to create a relationship between Account and Shoe and prevent orphaned Shoe records. Master-detail lookup establishes a parent-child relationship between two objects, where the parent record controls certain behaviors of the child record, such as security, ownership, and deletion. If the parent record is deleted, all the child records are deleted as well. References:
https://help.salesforce.com/s/articleView?id=sf.relationships_considerations.htm&type=5