Using the symptoms to classify the problem

You can classify the problem on the basis of the symptoms you observe. Sometimes, the symptoms enable you to classify the problem correctly at once, but sometimes classification is less straightforward. You might need to consider the evidence carefully before making your decision. You might need to make a best guess, and then reconsider later on the basis of further evidence.

About this task

Find the section heading that describes the symptoms most closely, then follow the advice given there.