The document describes the objectives covered in the CompTIA A+ 220-802 certification exam. It outlines the four domains that make up the exam: Operating Systems (33% of exam), Security (22%), Mobile Devices (9%), and Troubleshooting (36%). For each domain, it provides examples of the types of tasks, skills, and knowledge candidates should have in order to pass the exam, such as installing and configuring operating systems, using command line tools, and performing preventative maintenance on PCs.