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Subject

Chapter

Topic

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Questions Per Page

Q111. What does a use case diagram represent?

Internal logic of classes User interactions Backend operations Data flow

Q112. What is an activity diagram used for?

Show method calls Display task flow Represent structure Map database

Q113. What does the sequence diagram show?

Data flow Step-by-step system interaction Hardware components Actor list

Q114. What does a class diagram represent?

Database structure Class organization System interface User interactions

Q115. Which is a use case in an online library system?

Borrow books Backup system Write user manual Update software

Q116. What is the purpose of use case diagrams?

Show errors DB structure User needs System parts

Q117. How many types of UML diagrams are there?

3 4 5 6

Q118. What does UML stand for?

Unified management language Unified modeling language Universal modeling language Unified model layout

Q119. What is the purpose of UML diagrams in software systems?

Increase complexity Improve communication Make system harder to manage Show system errors

Q120. What is the purpose of a contingency fund in cost estimation?

To cover unexpected costs To pay for marketing expenses To hire additional developers To purchase new hardware