Basic CS [3i Infotech Placement]: Sample Questions 197 - 197 of 243

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Question 197

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Describe in Detail

Essay▾

What are the key objected concepts used by Windows NT?

Explanation

Encapsulation

  • Object consists of one or more data items and one or more procedures.
  • Process by which a lower level protocols accepts a message from a higher level protocol and places in the data portion of the lower-level frame.
  • Used to hide data members and members function.
  • Related to abstraction and information hiding.
  • Rely having on encapsulation to create high-level objects.

Object and Class

Object:

  • Discovered before they appear in operations console.
  • The basic unit of management in operation manager.
  • Represent our computing environment, a computer, a logical disk, or a database.
  • Also represent abstract, an application, active directory domain.

Class:

  • A kind of object, every object in operations manager is considered instance of a particular class.
  • Share a common set of properties.
  • Each object have own value for properties which are dermined when the object is discover.

Instance

  • Create specified instance of an object.
  • Define a case or occurrence of anything.
  • An element, document type, or a document that conforms to a particular data type definition.
  • Instance of a class share the same set of attribute, but differ in terms of contained in attribute.

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