129_Q3

1.

1 point

A household switch controlling lights, ceiling fans, etc. is an example of this design pattern.

2.

1 point

This is used when one object is modified, its dependent objects are to be notified
automatically

3.

1 point

This pattern allows adding of new functionality in an
existing object without
altering its structure.

4.

1 point

With the help of this pattern, the new operations are
performed on an existing structure.

5.

1 point

In this pattern, normally each receiver contains reference to another receiver. If one object cannot handle the request then it passes the same to the next receiver and so on.

6.

1 point

Useful when a single, global point of access to a limited resource is required.

7.

1 point

This pattern provides a class which normally handles all the communications between different classes and supports easy maintainability of the code by loose
coupling.

8.

1 point

This design pattern provides a
simple interface to large
code.

9.

1 point

This pattern is used to delegate the object creation to another...

10.

1 point

This pattern describes how the communication between the entities is controlled in a good manner and also defines the instructions grammar.

11.

1 point

Describes how closely all the routines in a class or all the code in a routine support a central purpose

12.

1 point

In this pattern, a class behavior or its algorithm can
be changed at run time.

13.

1 point

This allows traversing of lists, trees and other structures in a standard
manner.

14.

1 point

Allows saving of historical
states of an object and
restore the object back from
the historical states.

15.

1 point

Vending Machine is one example of it.

16.

1 point

These design patterns describe how objects and classes can be combined and form a large structure.

17.

1 point

If creating an object is expensive in time or computer resources, it allows you to postpone this creation until you need the actual object.

18.

1 point

This pattern helps us to separate the construction of a complex object from its representation so that the same construction process can create different representations.

19.

1 point

We use this pattern when we need to create thousands or more objects that share some common information.

20.

1 point

It lets subclasses redefine certain steps of an algorithm without
changing the algorithm's structure.

21.

1 point

describes how tightly a class or routine is related to other classes or routines.

22.

1 point

In this pattern, two incompatible types can communicate between each other.

23.

1 point

With this pattern a request is wrapped under an object as command and passed to invoker object.

24.

1 point

This is used to instantiate a class by
copying, or cloning, the
properties of an existing
object.

25.

1 point

With this pattern, The client never knows that it is working on an object which has many other objects inside it.