This, my friends, is the final Knowledge Area of the Advanced Administrator Exam - Process Automation. From the Exam Guide -
Given a scenario, troubleshoot an approved process.
Given a complex scenario, determine the solution using a combination of automation tools to solve a business problem (Process Automation, formula fields, and when to use Visualforce and Apex triggers).
Process Automation Cheat Sheet (PDF) - https://resources.docs.salesforce.com/rel1/doc/en-us/static/pdf/SF_Process_Automation_cheatsheet_web.pdf
Which Automation Tool Do I Use? - https://help.salesforce.com/articleView?id=process_which_tool.htm&type=5