All True & False Question
Faculty of Computers and Information
Mansoura - Universtiy
DR / Mohamed Mahfouz
Questions and Answers
- 1.
Our failure to master the complexity of software results in projects that are late, over budget, and deficient in their stated requirements.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement explains that when we are unable to understand and control the complexity of software, it leads to projects that are delayed, exceed the budget, and fail to meet the desired requirements. This suggests that the statement is true, as it highlights the negative consequences of not being able to handle software complexity effectively.Rate this question:
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- 2.
Complexity of software is not inherent.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Complexity of software is inherent.Rate this question:
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- 3.
If a complex system has a hierarchy, implicitly it has multi-levels of abstraction
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A complex system with a hierarchy implies that it is organized into multiple levels of abstraction. This means that the system is structured in a way that allows for different levels of detail and complexity, with higher levels providing a broader overview and lower levels delving into more specific details. This hierarchical structure enables better understanding and management of the system by breaking it down into manageable components and relationships. Therefore, the statement that a complex system with a hierarchy implicitly has multi-levels of abstraction is true.Rate this question:
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- 4.
In a hierarchy of complex system, we can’t consider each layer as a discrete system
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
each layer is considered as discrete systemRate this question:
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- 5.
In a company analysis, there are members in different levels that are unified by common mechanisms.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because in a company analysis, members from different levels come together and are connected through common mechanisms. This suggests that there are shared processes, systems, or structures that enable collaboration and coordination between employees at various levels within the organization. These mechanisms could include communication channels, reporting structures, decision-making processes, or shared goals and objectives. Overall, this unification of members from different levels is essential for effective analysis and decision-making within the company.Rate this question:
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- 6.
The complexity of software is an essential property, not an accidental one.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The complexity of software refers to the level of intricacy and difficulty in understanding and managing the software system. It is considered an essential property because it directly affects the development, maintenance, and overall success of the software. Software complexity impacts factors such as code readability, ease of debugging, scalability, and reliability. Therefore, acknowledging and managing software complexity is crucial for ensuring the effectiveness and efficiency of software development and operations.Rate this question:
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- 7.
Tossing a ball into the air is an example of continuous systems.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Tossing a ball into the air can be considered an example of a continuous system because the motion of the ball can be described by a continuous function over time. The ball's position, velocity, and acceleration can be measured at any point in time, and the motion is not limited to discrete values or intervals. Therefore, the statement is true.Rate this question:
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- 8.
Discrete systems are affected by external events in their internal state.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Discrete systems are affected by external events in their internal state. This means that external events can cause changes or modifications in the internal state of a discrete system. These events can trigger actions or updates within the system, leading to different outcomes or behaviors. In contrast, continuous systems do not rely on external events to change their internal state and instead operate based on continuous inputs. Therefore, the statement "Discrete systems are affected by external events in their internal state" is true.Rate this question:
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- 9.
The system developers must consider the internal environment rather than any other factors.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
both internal and External FactorsRate this question:
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- 10.
Many complex systems haven’t a decomposable structure.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
have a decomposable structureRate this question:
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- 11.
What is primitive for one system analyzer may be at a much higher level of abstraction for another.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
This statement suggests that what may be considered a basic or fundamental concept for one system analyzer may be seen as a more advanced or complex concept for another. This implies that the level of abstraction or understanding differs between different individuals or systems. Therefore, the statement is true as it highlights the subjective nature of defining what is considered primitive or basic in different contexts.Rate this question:
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- 12.
A complex system that works in invariably found to have evolved from a simple system that worked.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
This statement is based on the concept of evolution and the idea that complex systems are often built upon simpler ones. It suggests that complex systems do not arise spontaneously, but rather develop gradually from simpler systems that have proven to be functional. This idea is supported by observations in various fields, such as biology, engineering, and technology, where complex structures and processes are often the result of incremental improvements and adaptations to simpler prototypes.Rate this question:
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- 13.
To achieve the canonical form of a complex system, all needed is analyzing the object structure.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Analyzing both object strcture and class strcture .Rate this question:
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- 14.
Decomposition is a method to overcome the human intellectual limitation.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Decomposition is a method used to break down complex problems or tasks into smaller, more manageable components. By doing so, it allows individuals to focus on one aspect at a time, making it easier to understand and solve the problem. This approach helps overcome the limitations of human intellect by providing a systematic way to approach and solve complex problems.Rate this question:
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- 15.
The processes (events) based decomposition is called oo decomposition.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Called algorithmic DecompositionRate this question:
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- 16.
Structured languages like C++, Python, Java.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Fortran . Cobol . pascalRate this question:
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- 17.
It's necessary to use OO programming languages rather than routine based languages to overcome the problem of huge codes.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Object-oriented (OO) programming languages provide a more organized and modular approach to coding, allowing for the creation of reusable and maintainable code. This is especially beneficial when dealing with large code bases, as the use of classes, objects, and inheritance helps to break down complex systems into smaller, manageable components. In contrast, routine-based languages lack the structure and flexibility of OO languages, often resulting in code that is harder to understand, modify, and debug. Therefore, using OO programming languages is indeed necessary to overcome the problem of huge codes.Rate this question:
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- 18.
Abstraction is a method to simplify the system analysis.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Abstraction is indeed a method used in system analysis to simplify complex systems by focusing on the essential aspects and ignoring unnecessary details. It involves identifying and representing only the relevant components, relationships, and behaviors of the system, thus making it easier to understand and work with. By abstracting away the complexities, system analysts can gain a better understanding of the system's overall structure and functionality, enabling them to make more informed decisions and design effective solutions.Rate this question:
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- 19.
Static models are used to define the behavior of components overtime.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Daynamic modelsRate this question:
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- 20.
The Key Hierarchies of Complex Systems are both Class (is a) and Object (part of) Structures.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because complex systems, such as organizations or biological systems, can be understood and analyzed using both class (is a) and object (part of) structures. Class structures refer to the hierarchical classification of elements within a system, while object structures refer to the relationships and dependencies between different elements. By considering both class and object structures, we can gain a comprehensive understanding of how the system functions and how its components interact with each other.Rate this question:
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- 21.
Is eye color property of human being?
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement "eye color is a property of human beings" is true. Eye color is a hereditary trait that is determined by the presence of specific genes. It is a characteristic that varies among individuals and can be influenced by factors such as genetics and environmental factors. Eye color is determined by the amount and type of pigments in the iris of the eye. Different combinations of pigments can result in a variety of eye colors, including blue, green, brown, and hazel. Therefore, eye color can be considered a property or characteristic of human beings.Rate this question:
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- 22.
Can overloaded methods be override too?
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Overloaded methods and overridden methods are two different concepts in object-oriented programming. Overloading refers to the ability to define multiple methods with the same name but different parameters in a class. Overriding, on the other hand, is the ability of a subclass to provide a specific implementation of a method that is already defined in its superclass. Since these are separate concepts, it is possible to have overloaded methods and overridden methods in the same class. Therefore, the correct answer is true.Rate this question:
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- 23.
Can we override the main method?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The main method in Java is the entry point for a program and is automatically called when the program is run. It cannot be overridden because it is a static method and belongs to the class itself, not to any object of the class. Therefore, it is not possible to change its behavior or override it in any subclass.Rate this question:
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- 24.
Can we create an object for an interface
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Yes, we can create an object for an interface in certain situations. This is possible through the concept of interface implementation. When a class implements an interface, it must provide implementations for all the methods defined in that interface. We can then create an object of that class and use it as an instance of the interface. This allows us to take advantage of polymorphism and use different implementations of the interface interchangeably.Rate this question:
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- 25.
Anonymous classes cannot have explicit constructors.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Anonymous classes are a way to create a class without giving it a name. Since they do not have a name, they cannot have explicit constructors. An explicit constructor is a constructor that is defined with a specific name and parameters. Therefore, it is true that anonymous classes cannot have explicit constructors.Rate this question:
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- 26.
An inner class can be private.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
An inner class can be declared as private to restrict its access only within the outer class. This means that the inner class cannot be accessed or instantiated from outside the outer class. This is useful when the inner class is intended to be used only within the context of the outer class and should not be accessible to other classes. By making the inner class private, it enhances encapsulation and ensures that the inner class is only used as intended.Rate this question:
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- 27.
A method will affect only a particular object to which it is specified.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
This statement is true because when a method is specified for a particular object, it means that the method will only be applied or executed on that specific object. Other objects of the same class will not be affected by this method. This allows for individualized actions and behaviors for different objects, providing flexibility and customization in object-oriented programming.Rate this question:
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- 28.
Polymorphism enables you to program “in the specific” rather than “in the general.”
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Polymorphism enables you to program "in the specific" rather than "in the general" by allowing objects of different classes to be treated as objects of a common superclass. This means that you can write code that can work with objects of different types without needing to know the specific type of each object. This allows for more flexible and reusable code. However, the given answer is false, as polymorphism actually enables you to program "in the general" rather than "in the specific".Rate this question:
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- 29.
Can abstract classes be inherited?
- A.
Yes
- B.
No
Correct Answer
A. YesExplanation
Abstract classes can be inherited by other classes. Inheritance allows a subclass to inherit the properties and methods of the abstract class, which can then be further extended or implemented. However, it is important to note that abstract classes cannot be instantiated directly and can only be used as a base for other classes.Rate this question:
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- 30.
Different criteria for classifying the same organisms yield same results
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
different criteria for classifying the same organisms yield different results.Rate this question:
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- 31.
Mechanisms thus represent strategic design decisions , These strategic decisions must be made implicitly
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Mechanisms thus represent strategic design decisions , These strategic decisions must be made explicitlyRate this question:
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- 32.
Behavior analysis approaches are more akin to classical categorization , We form classes based on groups of objects that exhibit similar behavior.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Behavior analysis approaches are more akin to conceptual clustering , We form classes based on groups of objects that exhibit similar behavior.Rate this question:
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- 33.
In Package Diagrams, elements are permitted to have the same name as long as they belong to different namespaces
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
In Package Diagrams, elements are permitted to have the same name as long as they belong to different namespaces. This means that two elements within a package diagram can have the same name as long as they are organized within different namespaces. Namespaces provide a way to group related elements together and avoid naming conflicts. This allows for better organization and clarity within the diagram.Rate this question:
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- 34.
If any elements imported from multiple different namespaces are of the same type and have the same name, they are added to the importing namespace
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
not addedRate this question:
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- 35.
In Component Diagrams , components may be used to hierarchically decompose a system and represent its physical architecture
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
logicalRate this question:
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- 36.
In deployment diagram There are no particular constraints on node names because they denote software, not hardware
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
HaredwareRate this question:
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- 37.
Use case is a complete course of events in the system from a user’s perspective
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A use case is a representation of a user's interaction with a system to achieve a specific goal. It outlines the steps and actions taken by the user and the system's response. It provides a comprehensive view of the system's functionality and behavior from the user's perspective. Therefore, the statement "use case is a complete course of events in the system from a user's perspective" is accurate and true.Rate this question:
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- 38.
During design : class diagrams used to indicate the common roles and responsibilities of the entities that provide the system’s behavior
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
during analysisRate this question:
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- 39.
In class diagram ,class may have an association relationship to itself (called a reflexive association )
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
In a class diagram, a class can indeed have an association relationship with itself, which is known as a reflexive association. This means that an instance of the class can be associated with another instance of the same class. This can be useful in modeling scenarios where a class needs to have a relationship with other instances of itself.Rate this question:
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- 40.
Qualifier is an attribute whose value uniquely identifies a multiple target objects
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
single objectRate this question:
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- 41.
Constraints are guarantees that apply only when the state of the system is stable
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Constraints are rules or limitations that are put in place to ensure that a system functions properly. In this context, the statement is saying that constraints only apply when the state of the system is stable. This means that the constraints are designed to work effectively and reliably only when the system is in a stable condition. If the system is unstable or undergoing changes, the constraints may not be applicable or may not produce the desired results. Therefore, the statement is true as constraints are typically designed to be effective in a stable system state.Rate this question:
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- 42.
In interaction flow diagram , the frame is mandatory when the context is clear
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
optionalRate this question:
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- 43.
The composite structure and its parts interface with their external environment through interface
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Through portsRate this question:
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- 44.
Interaction Overview Diagrams focuses on how objects are linked and what messages they pass as they participate in a specific interaction
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Communication diagramRate this question:
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