If you have to make any assumptions in answering the question be sure to state them clearly. You might even answer the question several times, each with a different assumption. The way you interpret the question reveals how much you know about the area and how well you understand its subtleties. Answering the Questions Read the questions carefully and answer the specific question rather than giving a general discussion of the area the question is about. For example, if we ask what page replacement algorithms are most commonly implemented in operating systems we are not asking for a listing of all page replacement algorithms.
Many questions have multiple parts.
In some cases the first one or two parts will be material that is fairly elementary. Usually these parts have a small point value. For material that can be looked up, we expect a clear and concise answer in your own words. Answers that contain a lot of irrelevant material are generally marked down. Suppose there is a question about what factors would cause you to choose write-through in a caching system.