Which UML diagram is used to represent the interactions between system components over time?
a) Class Diagram
b) Sequence Diagram
c) Component Diagram
d) Deployment Diagram
Which of the following is NOT a type of UML diagram?
a) Use Case Diagram
b) Flowchart Diagram
c) Activity Diagram
d) State Diagram
In UML, which diagram represents the static structure of a system?
a) Class Diagram
b) Sequence Diagram
c) Activity Diagram
d) State Diagram
Which design pattern ensures only one instance of a class is created?
a) Factory Pattern
b) Singleton Pattern
c) Observer Pattern
d) Prototype Pattern
Which UML diagram is used to show the interactions between different objects in a system?
a) Use Case Diagram
b) Sequence Diagram
c) Activity Diagram
d) State Diagram
Which design pattern provides a simplified interface to a larger system?
a) Facade Pattern
b) Adapter Pattern
c) Observer Pattern
d) Composite Pattern
What does a UML use case diagram primarily represent?
a) The dynamic behavior of a system
b) The relationships between system actors and use cases
c) The internal logic of a system
d) The physical structure of a system
Which pattern is used when an object needs to notify multiple observers about changes?
a) Factory Pattern
b) Observer Pattern
c) Prototype Pattern
d) Strategy Pattern
Which UML diagram is most useful for modeling workflows and business processes?
a) Activity Diagram
b) Class Diagram
c) Deployment Diagram
d) Object Diagram
Which design pattern allows a class to change its behavior at runtime?
a) Strategy Pattern
b) Singleton Pattern
c) Factory Pattern
d) Observer Pattern
Which UML diagram is used to represent object instances and their relationships?
a) Object Diagram
b) Sequence Diagram
c) Class Diagram
d) State Diagram
Which design pattern is used to create objects without specifying their exact class?
a) Factory Pattern
b) Singleton Pattern
c) Adapter Pattern
d) Decorator Pattern
Which UML diagram represents the physical deployment of software components?
a) Class Diagram
b) Use Case Diagram
c) Deployment Diagram
d) Activity Diagram
Which pattern is used when one object controls access to another?
a) Proxy Pattern
b) Singleton Pattern
c) Composite Pattern
d) Factory Pattern
Which UML diagram is used to model a system’s finite states and transitions?
a) Activity Diagram
b) State Diagram
c) Sequence Diagram
d) Class Diagram
Which design pattern allows objects to be created from a prototype?
a) Prototype Pattern
b) Factory Pattern
c) Adapter Pattern
d) Facade Pattern
Which UML diagram is used to show relationships between system components?
a) Component Diagram
b) Activity Diagram
c) Sequence Diagram
d) State Diagram
Which pattern is used to structure objects into tree hierarchies?
a) Composite Pattern
b) Bridge Pattern
c) Proxy Pattern
d) Factory Pattern
What is the primary purpose of an Adapter Pattern?
a) To create a simplified interface for a complex system
b) To convert an interface into one that clients expect
c) To define a one-to-many dependency between objects
d) To create an instance of a class only once
Which UML diagram is used to visualize interactions between objects at runtime?
a) Object Diagram
b) Sequence Diagram
c) Class Diagram
d) Deployment Diagram
Which design pattern is used for allowing multiple objects to handle a request?
a) Chain of Responsibility Pattern
b) Observer Pattern
c) Singleton Pattern
d) Prototype Pattern
Which UML diagram models the flow of control or data in a system?
a) Sequence Diagram
b) Activity Diagram
c) Deployment Diagram
d) Object Diagram
Which pattern provides a way to traverse elements of a collection without exposing its structure?
a) Iterator Pattern
b) Facade Pattern
c) Singleton Pattern
d) Composite Pattern
Which UML diagram is used to model high-level system interactions?
a) Use Case Diagram
b) Class Diagram
c) Deployment Diagram
d) Object Diagram
Which pattern is used when objects need to communicate without knowing each other’s identities?
a) Mediator Pattern
b) Observer Pattern
c) Facade Pattern
d) Singleton Pattern
Which UML diagram represents the detailed structure of a class and its attributes?
a) Class Diagram
b) Sequence Diagram
c) Activity Diagram
d) Component Diagram
Which design pattern allows objects to behave differently based on their state?
a) State Pattern
b) Strategy Pattern
c) Singleton Pattern
d) Observer Pattern
Which UML diagram is most useful for system architects designing software deployment?
a) Deployment Diagram
b) Activity Diagram
c) Use Case Diagram
d) Object Diagram
Which pattern provides a way to access elements of an aggregate object sequentially?
a) Iterator Pattern
b) Composite Pattern
c) Proxy Pattern
d) Observer Pattern
