All Free Software Engineering MCQs with Answers

• A. short-term memory
• B. shortcuts
• C. objects that appear on the screen
• D. all of the mentioned

Explanation: Complex tasks place a heavy demand on short-term memory because users must temporarily retain steps, values, and task context.

• A. keyboard commands
• B. mouse movement
• C. voice recognition commands
• D. all of the mentioned

Explanation: A user interface may support several interaction modes, including keyboard commands, mouse actions, and voice recognition.

• A. design model
• B. user's model
• C. mental image
• D. system image

Explanation: The user's model establishes who the end users are and what they expect from the system, forming a profile of their characteristics and…

• A. mental image
• B. interface design
• C. system image
• D. interface validation

Explanation: A system image is the visible behavior or appearance of a computer-based system together with the supporting information that explains its…

• A. Abstraction-Occurrence Pattern
• B. Player-Role Pattern
• C. General Hierarchy Pattern
• D. Singleton Pattern

Explanation: The Player-Role pattern separates an object’s different roles into separate role objects, avoiding the need for multiple inheritance.

• A. encapsulating the knowledge of which document subclass to is to be created and
• B. moving this knowledge out of the framework
• C. instantiating the application specific documents without knowing their class
• D. all of the mentioned

Explanation: The Factory Method moves application-specific creation knowledge out of the framework and lets subclasses instantiate the appropriate…

• A. Singleton pattern
• B. Facade Pattern
• C. Observer pattern
• D. Factory method pattern

Explanation: The Observer pattern creates a one-to-many relationship in which one subject notifies multiple dependent observers when its state changes.

• A. Factory Method
• B. Singleton
• C. Observer
• D. None of the mentioned

Explanation: Singleton restricts a class to a single instance and provides a shared access point to it.

• A. Behavioral
• B. Structural
• C. Abstract Factory
• D. All of the mentioned

Explanation: Behavioral and Structural are design-pattern categories, and Abstract Factory is a specific creational design pattern.

• A. patterns
• B. documents
• C. structures
• D. methods

Explanation: Recurring, reusable solutions to common design problems are called design patterns.

• A. Adapter Pattern
• B. Singleton Pattern
• C. Delegation pattern
• D. Immutable Pattern

Explanation: Delegation promotes reuse by having one object pass responsibility to another object instead of duplicating its methods.

• A. Component-based software engineering
• B. Reusability in general
• C. All of the mentioned
• D. None of the mentioned

Explanation: Design patterns capture reusable object-oriented solutions and support broader reuse, including the design of reusable components.

• A. Inheritance
• B. Composition
• C. All of the mentioned
• D. None of the mentioned

Explanation: Design patterns are applied through object-oriented mechanisms such as inheritance and composition, depending on the pattern and the…

• A. Sequence Diagram + Collaboration Diagram
• B. Activity Diagram + State Chart Diagram
• C. Deployment Diagram + Collaboration Diagram
• D. None of the mentioned

Explanation: Interaction diagrams describe communication between objects through exchanged messages.

• A. Sequence Diagram
• B. Collaboration Diagram
• C. Class Diagram
• D. Object Diagram

Explanation: An object diagram shows object instances and their links at a particular moment, giving a snapshot of the system structure.

• A. Association
• B. Aggregation
• C. Realization
• D. Generalization

Explanation: An association is a structural link showing that instances of one class can be connected to instances of another.

• A. Structural things
• B. Behavioral things
• C. Grouping things
• D. Annotational things

Explanation: Classes and interfaces define the static vocabulary and structure of a model, so UML groups them among structural things.

• A. Structural things
• B. Behavioral things
• C. Grouping things
• D. Annotational things

Explanation: Behavioral things represent the dynamic aspects of a UML model, such as actions, state changes, and object interactions.

• A. Use Case
• B. Actor
• C. Interface
• D. Relationship

Explanation: An interface is a collection of operation signatures that specifies services offered by a class or component.

• A. object
• B. attribute
• C. operation
• D. instance

Explanation: An operation is a behavior that can be invoked on an object, such as a method that changes its state or produces a result.