ObjectiveMcq
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Which of the following statements about object model is true I. Object model encourages the reuse of software and entire design of the application. II. Object model produces systems that are built upon stable intermediate forms. III. Object model reduce the inherent in developing complex systems. IV. None of the mentioned
I, III
I, II
I, II, III
IV
All the above written statements are the benefits of object model.
_____________ is the property that distinguishes an active object from one that is not active.
Persistence
Typing
Aggregation
Concurrency
No explanation is available for this question yet.
Subclass represents _______________ abstractions
Generalized abstractions
Specialization abstractions
Both
None of the mentioned
Specialization means creating new subclasses from an existing class.
Superclass represents ______________ abstractions
Generalized abstractions
Specialization abstractions
Both
None of the mentioned
Generalization is the process of extracting shared characteristics from two or more classes, and combining them into a generalized superclass.
Inheritance is an example of which type of hierarchy
Class Structure
Object Structure
Both
None of the mentioned
Inheritance is the most important "is a" (class structure) hierarchy and not "part of" (object structure) hierarchy.
Dependencies among files can then be asserted using the macro
#define
#undef
#include
#endif
Modular implementations are placed in file named with a .c suffix which are called header files. #include is necessary to tell the preprocessor where to look for header files if they are not placed in the current directory.
Callback is an operation provided by
Inheritance
Encapsulation
Modularity
Abstraction
A call back is a programming idiom which a client provides a function to the server and the server calls the client's function whenever the appropriate conditions are met.
Which of the following programming language are object oriented in nature
Smalltalk and Simula
FORTRAN and ALGOL
C and Ada
Perl and Python
In Smalltalk and Simula, data and methods of manipulating the data are kept as a single unit called an object.
Object oriented technology is built upon a sound engineering foundation, whose elements are collectively called as _________
Von Neumann Model
Object Model
Structured Model
Programming Model
The object mode encompasses the principles of abstraction, encapsulation, modularity, typing, concurrency, and persistence which are the principles of object oriented programming language.
What is that concept in type theory in which a single name may denote objects of many different classes that are related by some common super class referred to ______
Monomorphism
Type Checking
Polymorphism
Generalization
Polymorphism is a feature of object oriented programming that usually takes the ability of creating an object, or variable, or a function in more than one form. Polymorphism exists when the features of inheritance and dynamic binding interact.
Which of the following statements about Persistence is correct?
It is the enforcement of the class of an object, such that objects of different types may not be interchanged, or at the most they may be interchanged only in very restricted ways.
It is the property of an object through which its existence transcends time and/or space.
It is the property that distinguishes an active object from one that is not active.
All of the mentioned
Persistence deals with lifetime of data. Persistence saves the state and class of an object across time or space.
In which of the following mechanisms, types of all variables and expressions are not known until runtime
Strong Typing
Weak Typing
Static Binding/ early binding
Dynamic Binding/ late binding
The memory address of a variable can be statically bound to the variable at compile time or dynamically at runtime. Likewise, variables in some languages have dynamic types that change during program execution, while other variables have static types that remain fixed over the execution of the program. Only the binding of the value determines whether the object is a variable or something else (such as constant).
In which of the following mechanisms, types of all variables and expressions are fixed at compilation time.
Strong Typing
Weak Typing
Static Binding/ early binding
Dynamic Binding/ late binding
The memory address of a variable can be statically bound to the variable at compile time or dynamically at runtime. Likewise, variables in some languages have dynamic types that change during program execution, while other variables have static types that remain fixed over the execution of the program. Only the binding of the value determines whether the object is a variable or something else (such as constant).
Single inheritance, Multiple inheritance, and Aggregation comes under _______
Modularity
Typing
Hierarchy
None of the mentioned
All the three types are the examples of Hierarchy, as it denotes ranking or ordering of abstractions.
The process of compartmentalizing the elements of an abstraction that constitute its structure and behavior is called as
Hierarchy
Encapsulation
Modularity
Entity Abstraction
Encapsulation focuses upon the implementation that gives rise to this behavior and is mostly often achieved through information hiding i.e., abstraction.
Abstraction is classified into _______ types
4
3
2
1
Entity abstraction, Action abstraction, Virtual machine abstraction, Coincidental abstraction
The essential characteristics of an object that distinguish it from all other kinds of objects and thus provide crisply defined conceptual boundaries, relative to the perspective of the viewer is called:
Encapsulation
Modularity
Hierarchy
Abstraction
Abstraction focuses only on the outside view of an object and separates object's essential behavior from its implementation. It explains what an object does but doesn't explain how it does.
What is the programming style of the object oriented conceptual model?
Invariant relationships
Algorithms
Classes and objects
Goals, often expressed in a predicate calculus.
Object oriented programming follows a conceptual framework called object model and is implemented by writing classes and objects to make its style clear unlike procedure- oriented language.
The method of design encompassing the process of object oriented decomposition and a notation for depicting both logical and physical and as well as static and dynamic models of the system under design is known as:
Object- Oriented Programming
Object- Oriented Design
Object- Oriented Analysis
None of the mentioned
The definition has two important parts. The former part uses the class and object abstractions to logically structure systems, and the latter uses algorithmic abstractions. The term object oriented design (OOD) is used to refer any method that leads to object oriented decomposition.
