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Question:

You have passed your CompTIA A+ exam. Fred is one of your company's junior help desk personnel and he's troubleshooting a new client problem and has established a likely cause, but he's not sure what to do next. He asks for your help in reviewing troubleshooting theory. What should Fred do at this point?

A Test the theory.
Explaination

After establishing the theory of probable cause, you should test that theory to see if you were correct according to the troubleshooting theory from CompTIA test materials. This lets you understand if you are ready to move on to an action plan or need to backtrack and work on establishing a new probable cause.