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Frage 1
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The observed pattern is?
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Structural
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Creational
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Behavioral
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Executional
Frage 2
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The Factory pattern is?
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Creational
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Structural
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Executional
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Behavioral
Frage 3
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In the pattern, we create objects which represent various strategies and a context object whose behavior varies as per its strategy object. The strategy object changes the executing algorithm of the context object?
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Memento
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Adapter
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Builder
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Strategy
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Facade
Frage 4
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Single responsibility of principle?
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Requires that methods that are present in base classes must also be present in derived classes
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Requires that object interfaces only include methods that will be needed by most implementers
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Helps make changing an object easier
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helps ensure that objects are highly reusable
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Helps ensure that objects are easy to extend without requiring change to the original object
Frage 5
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Which of the patterns refers to creating duplicate object while keeping performance in mind?
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Composite pattern
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Facade Pattern
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Builder pattern
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Prototype pattern
Frage 6
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The open close principle?
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Helps make changing an object easier
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Helps ensure that objects are highly reusable
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Requires that methods that are present in base classes must also be present in the derived classes
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Requires that object interfaces only include methods that will be needed by most implementers
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Helps ensure that objecs are easy extend without requiring change to the original object
Frage 7
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Which of the following is not a software engineering risk?
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The code for sort algorithm is overly complex
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The server may not scale to 1000 users
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We do not adequately understand our customer's needs
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The system is working fine, but if we try to change anything it seems to always break something else
Frage 8
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A real life example could be a case of card reader which acts as the Pattern between memory card and a laptop. You plugin the memory card into card reader and card reader into the laptop so that memory card can be read via laptop?
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Builder
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Facade
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Memento
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Adapter
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Observer
Frage 9
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The pattern works as a bridge between two incompatible interfaces. This pattern involves a single class which is responsible to join functionalities of independent or incompatible interfaces?
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Adapter
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Facade
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Builder
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Observer
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Memento
Frage 10
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A design pattern _______
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all
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useful in - how a software problem was solved by a developer
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gives examples of code that used the pattern
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a general reusable solution to a commonly occurring problem
Frage 11
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Name types of design patterns?
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Creational, Structural, Behavioral
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Creational, Executional, Structural
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Creational, Behavioral, Executional
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Behavioral, Executional, Structural
Frage 12
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Why are Patterns important?
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they capture expert design knowledge
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All
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None
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make it accessible to both novices and other experts
Frage 13
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Liskov’s substitution principle?
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Helps ensure that object are easy to extend without requiring change to the original object
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helps ensure that objects are hihtly reusable
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Helps make changing an object easier
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Requires that object interfaces only include methods that will be needed by most implementers
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Requires that methods that are present in base classes must also be present in the derived classes
Frage 14
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Upper case tools to support later activities such as programming, debugging and testing?
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True
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False
Frage 15
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The Dependency inversion principle?
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Requires that methods are present in base classes must also be in the derived classes
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Helps ensure that objects are highly reusable
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Helps make changing an object easier
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Helps ensure that objects are easy to extend without requiring change to the original object
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Requires that object interfaces only include methods that will be needed by mosty implementers
Frage 16
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Can we create a clone of a singleton object?
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Yes
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No
Frage 17
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Singleton Pattern
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Builder Pattern
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Facade Pattern
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Prototype Pattern
Frage 18
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Which pattern does this object model represent?
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State pattern
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Facade pattern
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Composite pattern
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Builder pattern
Frage 19
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Strategy Pattern
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Observer Pattern
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State Pattern
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Composite Pattern
Frage 20
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Which pattern does this object model represent?
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Facade pattern
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Strategy pattern
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Composite pattern
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Builder pattern
Frage 21
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Which pattern does this object model represent?
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Facade pattern
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Singleton pattern
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State pattern
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Strategy pattern
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Composite pattern
Frage 22
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Define one to many dependency between objects so that when one changes state, all its dependents are notified and updated automatically
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Composite pattern
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Observer pattern
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Strategy pattern
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State pattern
Frage 23
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The Interface Segregation Principle ?
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Hhelps make changing an object easier
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Helps ensure that object are easy to extend without requiring change to the original object
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Helps ensure that objects are hihtly reusable
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Requires that methods are present in base classes must also be in the derived classes
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Requires that object interfaces only include methods that will be needed by most implementers
Frage 24
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The Pattern is used where we need to treat a group of objects in similar way as a single object
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Composite
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Observer
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Facade
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Memento
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Builder
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