Quick Revision

GK One-Line Question & Answer

15541+ short questions with short answers, covering every category and sub-category on the site — no long articles to scroll through. Good for a fast recap before an exam, or a few minutes of daily practice.

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Software Engineering → Waterfall Model 4

The ___________ is used to translate the interface of one class into another interface.
functionality
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Which design pattern you would you use to limit the class instantiation to one object?
bloated
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Which Design Pattern should you use when more than one object may handle a request, and the handler isn't known a priori. The handler should be ascertained automatically.
visitor pattern
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Which of the following describes the Facade pattern correctly?
form
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Software Engineering → Spiral Model 4

________________ makes a clear-cut between abstraction and implementation.
persistent data
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Which of the following patterns allows multiple objects an opportunity to process a request without guaranteeing that any of them must process it?
polymorphism
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Which GRASP pattern helps to find out answer for “Who should be responsible for creating a new instance of some class?"
encompasses a collection of patterns
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The use of design patterns for the development of object-oriented software has important implications for ____________
solution
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Software Engineering → Agile Model 4

The _____________ helps you to create tree structures of objects.
transient data
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Which of the following is an object pattern that encapsulates interchangeable algorithms in objects so the algorithm can vary independently of the classes that use it?
all of above
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___________ is a measure of how strongly one element is connected to, has knowledge of, or relies on other elements.
10
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In which of the following pattern a class represents functionality of another class?
strategy
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Software Engineering → Requirement Engineering 4

Use ___________ when you need to define a family of algorithms, encapsulate each one, and make them interchangeable.
graph
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A pattern that is intended to provide a means to define a family of algorithms and encapsulate each one as an object for interchangeable use
pure fabrication
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A _____________ system is one in which each of its components has little or no knowledge of the definitions of other separate components.
builder pattern
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The client software uses the ___________ which provides an interface for creating families related or dependent objects.
command
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Software Engineering → Software Design 4

The __________ allows an object to alter its behavior when its internal state changes.
ddl
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Which GRASP pattern is suitbale to handle alternatives based on type?
behavioral
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In Low coupling two elements are coupled, if ______________________.
adapter pattern
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Which pattern is used when configuring an application with classes dynamically.
factory method design pattern
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Software Engineering → Coding Standards 4

In which of the following pattern, a null object replaces check of NULL object instance?
deployment diagrams
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A concrete class must have ...........
facade pattern
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We can make an object as Controller, if ___________________
bridge pattern
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___________ pattern ensure a class only has one instance and provide a global point of access to it.
singleton design pattern
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Software Engineering → Software Testing 4

Which of the following represents The (static) structure and (dynamic) behavior of the pattern?
use case diagram
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It is also known as Wrapper, it is used when subclassing is not possible or practical to add functionality and it is used to add functionality at runtime. This pattern is
singleton pattern
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A good software will have _____________.
composite pattern
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The ____________ is often employed when there is a need to use different sets of objects and where the objects could be added or changed some time during the lifetime of an application.
chain of responsibility
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Software Engineering → Debugging 3

Which of the following is not one of the elements of a design pattern?
use case diagram
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The main advantage of design patterns:
state pattern
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The indirection pattern supports _____________
strategy pattern
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Software Engineering → Software Maintenance 3

Define a family of algorithms, encapsulate each one, and make them interchangeable. It lets the algorithm vary independently from clients that use it.
general responsibility assignment software patterns
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Which Design Pattern should you use when you want to parameterize objects by an action to perform.
command pattern
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Which design pattern defines one-to-many dependency among objects?
state pattern
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Software Engineering → Introduction to Software Engineering 3

Encapsulate a request as an object, there by letting you parametrize clients with different requests, queue or log requests, and support undoable operation.
9
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Which Design Pattern should you use whenyou want to represent part-whole hierarchies of objects.
both a &c
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Which of the following is correct about Factory design pattern.
null object pattern
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Software Engineering → Software Development Models 3

Which design pattern is used in the Java Database connectivity JDBC(TM)?
controller
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Which Design Pattern should you use when an application uses a large number of objects and the storage costs are high because of the sheer quantity of objects.
prototype pattern
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Attach additional responsibilities to an object dynamically.It provides a flexible alternative to subclassing for extending functionality.
visitor pattern
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