Electronic quiz tools usually involve a discrete point approach to testing as opposed to an integrated or authentic approach, such as papers and projects. Discrete point tests are made up of test questions each of which is meant to measure one content point. Discrete point testing is associated with multiple choice and true/false formats, which have been criticized for testing only recognition knowledge and facilitating guessing and cheating. However, if they are used for an appropriate PURPOSE and if the test questions are well constructed, discrete point tests can be used for effective teaching and learning.
See different types of discrete point test questions at: http://www.teachopolis.org/library/how_to_write_multiple_choice_questions.htm.