UML.

Which of the following statements about UML is correct?

• UML stands for Unified Modeling Language.
• UML is a programming language.
• UML is mainly used for web development.
• UML cannot be used for database design.

UML diagrams are used to:

• Execute code in real-time.
• Communicate software design visually.
• Test software applications.
• Debug software errors.

Which UML diagram is used to depict the dynamic behavior of a system's components?

• Class diagram
• Sequence diagram
• State diagram
• Use case diagram

The class diagram in UML represents:

• The interactions between different classes.
• The flow of control within a method.
• The attributes and operations of a class.
• The sequence of method calls during execution.

In a UML use case diagram, an actor represents:

• A specific user or system interacting with the subject.
• A specific class in the system.
• The flow of control in the system.
• The relationships between use cases.

What does the association relationship between classes signify in UML?

• Inheritance between classes.
• Aggregation of objects.
• Dependency between classes.
• A simple link between classes.

Which UML diagram is used to represent the flow of activities in a process?

• Deployment diagram
• Activity diagram
• Component diagram
• Object diagram

Which of the following is not a structural UML diagram?

• Class diagram
• Object diagram
• Activity diagram
• Component diagram

What does the diamond symbol represent in a UML class diagram?

• Inheritance relationship
• Composition relationship
• Association relationship
• Aggregation relationship

UML diagrams are primarily used in which phase of the software development life cycle?

• Requirements gathering and analysis
• Testing and validation
• Deployment and maintenance
• Documentation and reporting