Design Patterns Quiz 1 | Englishfreetest.com

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  • Test content
    Question 1: Attach additional responsibilities to an object dynamically. It provides a flexible alternative to subclassing for extending functionality.
    A. Chain of responsibility
    B. Adapter
    C. Decorator
    D. Composite
    Question 2: Which of the following represents The (static) structure and (dynamic) behavior of the pattern?
    A. Name
    B. Application
    C. Consequences
    D. Form
    Question 3: Which of the following Chooses and standardizes patterns for a problem domain promotes software reuse and hence, quality and productivity?
    A. Promoting Communication
    B. Streamlining Documentation
    C. Increasing Development Efficiency
    D. Supporting Software Reuse
    Question 4: Define one to many dependency between objects so that when one object change state, all its dependent are notified and updated automatically.
    A. Chain of responsibility
    B. Event Notification
    C. Mediator
    D. Observer
    Question 5: Which of the following is not one of the elements of a design pattern?
    A. context
    B. environment
    C. problem
    D. solution
    Question 6: Define an interface for creating an object, but let the subclasses decide which class to instantiate. It let the instantiation differ to subclasses.
    A. Factory Method
    B. Abstract Factory
    C. Builder
    D. Prototype
    Question 7: Define a family of algorithms, encapsulate each one, and make them interchangeable. It lets the algorithm vary independently from clients that use it.
    A. Template method
    B. Decorator
    C. Strategy
    D. Visitor
    Question 8: Encapsulate a request as an object, there by letting you parametrize clients with different requests, queue or log requests, and support undoable operation.
    A. Adapter
    B. Command
    C. Decorator
    D. Composite
    Question 9: Which of these are the part of 253 patterns in pattern book by Alexander?
    A. Four-Story Limit
    B. South-Facing Outdoors
    C. Warm Colors
    D. All of the mentioned
    Question 10: Which of the following describes the Facade pattern correctly?
    A. This pattern allows a user to add new functionality to an existing object without altering its structure
    B. This pattern is used where we need to treat a group of objects in similar way as a single object
    C. This pattern hides the complexities of the system and provides an interface to the client using which the client can access the system
    D. This pattern is primarily used to reduce the number of objects created and to decrease memory footprint and increase performance