PYTHON DESIGN PATTERN QUIZ DESCRIPTION Total Questions −30 00 Max Time − 15:00 Which of the following pattern is used when there is one-to-many relationship between objects such as if one object is modified, its depenedent objects are to be notified automatically? Iterator Pattern Mediator Pattern Memento Pattern Observer Pattern ——– is a design pattern? Structural Abstract Factory Behavioral All of these Which one pattern creating duplicate object? Filter Pattern Prototype Pattern Bridge Pattern Builder Pattern Which of the following pattern is used where we need to treat a group of objects in similar way as a single object? Composite Pattern Facade Pattern Flyweight Pattern Decorator Pattern Most user interface design patterns fall with in one of ____ categories of patterns. 5 10 25 100 RubberNecking is an example of classic generative pattern TRUE FALSE Which of the following describes the Abstract Factory pattern correctly? This pattern creates object without exposing the creation logic to the client and refer to newly created object using a common interface. In this pattern an interface is responsible for creating a factory of related objects without explicitly specifying their classes. This pattern involves a single class which is responsible to create an object while making sure that only single object gets created. This pattern is used when we want to pass data with multiple attributes in one shot from client to server. Unlike architectural pattern , component level design patterns may be applied to solve subprobles without regards to system context. True False Which design pattern suggest multiple classes through which request is passed and multiple but only relevant classes carry out operations on the request? Singleton pattern Chain of responsibility pattern State pattern Bridge pattern Which of the following pattern is primarily used to reduce the number of objects created and to decrease memory footprint and increase performance? Composite Pattern Facade Pattern Flyweight Pattern Decorator Pattern Before choosing an architectural design pattern it must be accessed for its appropriateness to the application and overall architecture style. True False Design patterns are divided into 3 fundamental groups Behavioral patterns Creational patterns Structural patterns J2EE patterns Which of the following benefits provide patterns? Increasing Development Efficiency Promoting Communication Streamlining Documentation All of these The concept and technique discuss for ______ can be use in conjunction with the pattern base approach Architectural design Component level design User interface design All of the following A pattern language encompasses a collection of patterns is implemented using hypertext resembles the structure of natural languages None of the above Which of the following pattern focus on the design patterns movement? Data Structures and Algorithms Programming Idioms Mid-Level Design Patterns Architectural Styles Which of the following problems types are used to label column in patterns organizing table. Business Database and Infrastructure Database Infrastructure Which of the following pattern is used when we want to pass data with multiple attributes in one shot from client to server? Factory Pattern Abstract Factory Pattern Singleton Pattern Transfer Object Pattern Which design pattern ensure that only one object of particular class gets created Singleton pattern Filter pattern State pattern Bridge pattern Which of the following describes the Visitor pattern correctly? In this pattern, a visitor class is used which changes the executing algorithm of an element class. This pattern is used to separate application's concerns. This pattern is used to decouple presentation tier and business tier. This pattern is used in EJB persistence mechanism. What does MVC pattern stands for Mock view control Model view control Mock view class Model view class Most mistakes in patterns based design can be avoided by judicious use of review techniques. TRUE FALSE Which design pattern provides a single class which provides simplified methods required by client and delagates call to those methods? Adapter pattern Builder pattern Facade pattern Prototype pattern Which of the following is not valid Classification of design pattern Behavioral patterns Creational patterns Structural patterns Java patterns Which of the following is correct about Abstract Factory design pattern. This type of design pattern comes under creational pattern. Abstract Factory patterns work around a super-factory which creates other factories. In Abstract Factory pattern an interface is responsible for creating a factory of related objects without explicitly specifying their classes. All of the above Define the skeleton of an algorithm in an operation, deferring some steps to subclasses. It lets subclasses redefine certain steps of an algorithm without changing the algorithm structure. Chain of responsibility Template method Interpretor Prototype Attach additional responsibilities to an object dynamically.It provides a flexible alternative to subclassing for extending functionality. Chain of responsibility Adapter Decorator Composite It is important to reduce coupling among the design patterns so that they can treated as independent entities. True False Which design pattern works on data And action taken based on data provided ? Command Pattern MVC pattern Singleton pattern Facade pattern Which of the following is not one of the element of design pattern ? Context Environment Problem Solution Previous Next Total Question16 Wrong Answer13 Right Answer13
