Question 1

In Unified Modeling Language, diagrams that organize system elements into groups are classified as
A)package diagrams
B)organized diagram
C)system diagrams
D)class diagrams

Accepted Answer

Package diagrams in Unified Modeling Language (UML) are used to group elements of a system into related groups to organize a system into a higher level of abstraction. This helps in managing complex systems by dividing them into manageable packages.

Question 2

Which model in system modelling depicts the dynamic behaviour ofthe system
A)context model
B)behavioral model
C)data model
D)object model

Accepted Answer

The behavioral model is used to represent the dynamic behavior of the system, showing how the system responds to events and changes over time.

Question 3

What encapsulates both data and data manipulation functions
A)object
B)class
C)super class
D)sub class

Accepted Answer

An object encapsulates both data and data manipulation functions.

Question 4

Choose the incorrect statement in terms of Objects.
A)objects are abstractions of real-world
B)objects can't manage themselves
C)objects encapsulate state and representation information
D)all of the mentioned

Accepted Answer

Objects are designed to manage themselves through methods, encapsulating both their state and behavior, contrary to the statement that they can't manage themselves.

Question 5

What is the programming style of the object oriented conceptual model
A)invariant relationships
B)algorithms
C)classes and objects
D)goals, often expressed in a predicate calculus.

Accepted Answer

The object-oriented conceptual model is based on the use of classes and objects, which encapsulate data and behavior, allowing for modular and reusable code.

Question 6

Abstraction is classified into _______ types
A)4
B)3
C)2
D)1

Accepted Answer

Abstraction is classified into two types: data abstraction and procedural abstraction.

Question 7

The process of compartmentalizing the elements of an abstraction that constitute its structure and behavior is called as
A)hierarchy
B)encapsulation
C)modularity
D)entity abstraction

Accepted Answer

Encapsulation is the process of compartmentalizing the elements of an abstraction that constitute its structure and behavior, hiding the internal workings from outside interference and misuse.

Question 8

In which of the following mechanisms, types of all variables and expressions are fixed at compilation time.
A)strong typing
B)weak typing
C)static binding early binding
D)dynamic binding late binding

Accepted Answer

Static binding (also known as early binding) is a mechanism in which the types of all variables and expressions are fixed at compilation time. This means that the compiler knows the exact data types of all variables and expressions when the program is compiled, which is not the case with dynamic binding (late binding), where types can be determined at runtime. Strong typing and weak typing refer to how strictly types are enforced in a programming language, not to when types are determined.

Question 9

In which of the following mechanisms, types of all variables and expressions are not known until runtime
A)strong typing
B)weak typing
C)static binding early binding
D)dynamic binding late binding

Accepted Answer

In dynamic binding (also known as late binding), the types of variables or expressions are not known until runtime. This is in contrast to static binding (early binding), where types are known at compile time. Strong and weak typing refer to how strictly types are enforced, not when types are determined.

Question 10

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 ______
A)monomorphism
B)type checking
C)polymorphism
D)generalization

Accepted Answer

Polymorphism is the concept in type theory where a single name can denote objects of many different classes that are related by some common superclass. This allows methods to use objects of different classes as long as they are from the same hierarchy.

Quiz 3: UML Diagrams and Object-Oriented Concepts in System Modelling

In Unified Modeling Language, diagrams that organize system elements into groups are classified as

Which model in system modelling depicts the dynamic behaviour ofthe system

What encapsulates both data and data manipulation functions

Choose the incorrect statement in terms of Objects.

What is the programming style of the object oriented conceptual model

Abstraction is classified into _______ types

The process of compartmentalizing the elements of an abstraction that constitute its structure and behavior is called as

In which of the following mechanisms, types of all variables and expressions are fixed at compilation time.

In which of the following mechanisms, types of all variables and expressions are not known until runtime

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 ______