3d054 CDC Vol. 1
- 1.
Which skill level may be assigned to job positions such as team leaders or shift supervisors?
- A.
Helper
- B.
Craftsman
- C.
Apprentice
- D.
Journeyman
Correct Answer
D. JourneymanExplanation
Journeyman is the correct answer because team leaders or shift supervisors are typically experienced professionals who have mastered their craft and have the skills and knowledge to lead and supervise a team. They have a high level of expertise and are capable of handling complex tasks and responsibilities in their field.Rate this question:
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- 2.
Which programming related duty is responsible to isolate and identify programming errors?
- A.
Systems Analyst
- B.
Software Developer
- C.
Systems Administrator
- D.
Software Project Manager
Correct Answer
B. Software DeveloperExplanation
A software developer is responsible for isolating and identifying programming errors. They are skilled in coding and debugging, and have a deep understanding of the programming language and software development processes. They analyze the code, run tests, and use debugging tools to identify and fix errors. They also ensure that the software functions as intended and meets the requirements. Systems analysts, systems administrators, and software project managers may have other responsibilities related to software development, but isolating and identifying programming errors is specifically the duty of a software developer.Rate this question:
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- 3.
Operational Risk Management is a
- A.
Goal to reduce the number of occupational injuries or illnesses
- B.
Technology used in computer and communications programming
- C.
Decision-making process to systematically evaluate possible courses of action
- D.
Tool to assist commanders in enhancing readiness and accomplishing the mission
Correct Answer
C. Decision-making process to systematically evaluate possible courses of actionExplanation
Operational Risk Management is a decision-making process to systematically evaluate possible courses of action. It involves identifying potential risks, assessing their likelihood and impact, and then implementing strategies to mitigate or manage those risks. By evaluating different options and considering their potential risks, organizations can make informed decisions that minimize the likelihood of negative outcomes and maximize the chances of success. This approach helps to improve overall operational efficiency and effectiveness while reducing the probability of occupational injuries or illnesses. It is a proactive tool that enables commanders to enhance readiness and successfully accomplish their mission.Rate this question:
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- 4.
Which of the following is not a responsibility of Air Force Occupational Safety and Health Standards?
- A.
Analyze risk control measures
- B.
Use risk management to identify, reduce or eliminate risk in activities
- C.
Notify supervisor about job-related injury or impaired health that may affect job performance
- D.
Report any job-related injury as well as any suspected or actual exposure to chemical or hazardous material
Correct Answer
A. Analyze risk control measuresExplanation
The responsibility of Air Force Occupational Safety and Health Standards includes using risk management to identify, reduce or eliminate risk in activities, notifying the supervisor about job-related injury or impaired health that may affect job performance, and reporting any job-related injury as well as any suspected or actual exposure to chemical or hazardous material. However, analyzing risk control measures is not mentioned as a responsibility, making it the correct answer.Rate this question:
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- 5.
Approximately what percentage of all accidents happen due to human error?
- A.
20%
- B.
45%
- C.
80%
- D.
95%
Correct Answer
D. 95%Explanation
The given correct answer is 95%. This suggests that the majority of accidents occur as a result of human error. This means that human actions, such as negligence, carelessness, or mistakes, are the primary cause of accidents. Only a small percentage of accidents can be attributed to factors beyond human control, such as natural disasters or mechanical failures. This high percentage highlights the importance of promoting safety measures, training, and awareness to minimize human errors and prevent accidents.Rate this question:
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- 6.
How many months of OJT must a member have before being upgraded to the 7 skill level?
- A.
3 months
- B.
9 months
- C.
12 months
- D.
18 months
Correct Answer
C. 12 monthsExplanation
A member must have 12 months of OJT (On-the-Job Training) before being upgraded to the 7 skill level. This indicates that a significant amount of time and experience is required for the member to reach the necessary level of proficiency and expertise.Rate this question:
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- 7.
Which software engineering goal acts like a bridge between the problem and the solution?
- A.
Understandability
- B.
Modifiability
- C.
Reliability
- D.
Efficiency
Correct Answer
A. UnderstandabilityExplanation
Understandability acts like a bridge between the problem and the solution in software engineering. It refers to the ability of the software to be easily understood by its users, developers, and maintainers. When software is understandable, it becomes easier to identify and comprehend the problem at hand, leading to an effective and efficient solution. Additionally, understandability allows for better collaboration among team members and facilitates the modification and improvement of the software over time.Rate this question:
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- 8.
The software system that is efficient when it operates using available resources optimally defines the software engineering goal of
- A.
Understandability
- B.
Modifiability
- C.
Reliability
- D.
Efficiency
Correct Answer
D. EfficiencyExplanation
Efficiency is the correct answer because when a software system operates using available resources optimally, it means that it is utilizing the resources in the most efficient way possible. This implies that the system is designed to minimize resource waste and maximize performance, resulting in faster and more effective execution. Therefore, efficiency is a key goal in software engineering as it aims to develop systems that can deliver high performance without unnecessary resource consumption.Rate this question:
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- 9.
The purpose of information hiding is to
- A.
Create module
- B.
Make nonessential details transparent to the user
- C.
Reduce the details the programmer has to worry about at any given level
- D.
Tell us that related modules should be in the same physical part of the program
Correct Answer
B. Make nonessential details transparent to the userExplanation
The purpose of information hiding is to make nonessential details transparent to the user. This means that the user does not need to be aware of or concerned with the inner workings or implementation details of a module or program. By hiding these nonessential details, the user is able to interact with the system at a higher level of abstraction, making it easier to understand and use. Additionally, information hiding reduces the details that the programmer needs to worry about, allowing for better organization and modularization of code.Rate this question:
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- 10.
Which software engineering principle tells us that related modules should be in the same physical part of the program?
- A.
Abstraction
- B.
Localization
- C.
Completeness
- D.
Information Hiding
Correct Answer
B. LocalizationExplanation
Localization is the software engineering principle that tells us that related modules should be in the same physical part of the program. This means that modules that have common functionality or are closely related should be grouped together in order to improve code organization and maintainability. By localizing related modules, it becomes easier to understand and modify the code, as well as reduce dependencies between different parts of the program.Rate this question:
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- 11.
The purpose of CASE tools is to
- A.
Help you by enforcing standards throughout a particular project
- B.
Change a module without corrupting the basic structure of the system
- C.
Decompose a system from the general system into lower levels of abstraction
- D.
Dictate that all modules in our system use consistent notation, style, and concepts.
Correct Answer
A. Help you by enforcing standards throughout a particular projectExplanation
CASE tools, or Computer-Aided Software Engineering tools, are designed to assist in the development and maintenance of software systems. They provide support for various activities such as requirements analysis, design, coding, testing, and documentation. One of the main purposes of CASE tools is to help enforce standards throughout a particular project. This means that they ensure that all team members follow consistent practices, guidelines, and conventions while working on the project. By enforcing standards, CASE tools help improve the quality, consistency, and maintainability of the software being developed.Rate this question:
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- 12.
What is a toolkit?
- A.
It operates by interpreting a process model created by specialized tools
- B.
An environment that is written in the programming language for which it was developed
- C.
Loosely integrated collection of products easily extended by aggregating different tools
- D.
Integration of code in different is a major issue for language-centered environments
Correct Answer
C. Loosely integrated collection of products easily extended by aggregating different toolsExplanation
A toolkit refers to a loosely integrated collection of products that can be easily extended by aggregating different tools. This means that a toolkit is a set of software or resources that can be used together to perform various tasks or functions. It is designed in a way that allows for flexibility and customization by adding or integrating different tools as needed. This definition suggests that a toolkit is not a single tool or software, but rather a combination of multiple tools that work together to provide a comprehensive solution.Rate this question:
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- 13.
What is methodology?
- A.
It operates by interpreting a process model created by specialized tools
- B.
They focus on process integration with other integration dimensions as starting points
- C.
The branch of logic dealings with the general principles of of the formation of knowledge.
- D.
Loosely integrated collections of products easily extended by aggregating different tools
Correct Answer
C. The branch of logic dealings with the general principles of of the formation of knowledge. -
- 14.
A characteristic or quality is known as
- A.
A class
- B.
Persistence
- C.
An attribute
- D.
Polymorphism
Correct Answer
C. An attributeExplanation
An attribute is a characteristic or quality that is associated with an object or entity. It describes some aspect or property of the object. In programming, attributes are often used to define the state or behavior of an object. They can be used to store data or represent different features of an object. Therefore, an attribute is the correct term for describing a characteristic or quality.Rate this question:
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- 15.
A description or characteristic that is applicable to some number of objects is
- A.
A class
- B.
An attribute
- C.
Persistence
- D.
Cardinality
Correct Answer
A. A classExplanation
A class is a description or characteristic that is applicable to some number of objects. In object-oriented programming, a class is a blueprint for creating objects that share similar properties and behaviors. It defines the attributes (variables) and methods (functions) that the objects of that class will have. By creating multiple objects from a class, we can represent different instances of that class, each with its own unique set of values for the attributes. Therefore, a class is the correct answer in this context.Rate this question:
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- 16.
Encapsulation supports which software engineering principle?
- A.
Modularity
- B.
Abstraction
- C.
Localization
- D.
Information Hiding
Correct Answer
A. ModularityExplanation
Encapsulation supports the software engineering principle of modularity. Modularity refers to the concept of breaking down a complex system into smaller, independent modules or components. Encapsulation allows for the bundling of data and methods within a module, providing a clear interface and hiding the internal implementation details. This promotes modularity by allowing each module to be developed and maintained independently, enhancing code reusability and maintainability.Rate this question:
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- 17.
A person, place, thing, or physical or conceptual entity is known as
- A.
A class
- B.
Persistence
- C.
An object
- D.
An attribute
Correct Answer
C. An objectExplanation
An object refers to a person, place, thing, or physical or conceptual entity. In object-oriented programming, an object is an instance of a class, which is a blueprint for creating objects. Objects encapsulate data and behavior, allowing them to interact with other objects and perform specific tasks. Therefore, an object is the correct term for describing a person, place, thing, or entity in this context.Rate this question:
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- 18.
Persistence is
- A.
A person, place, thing, or physical or conceptual entity
- B.
An object that continues to exist, maintaining its state, behavior, and identity
- C.
A grouping of classes and objects that may be using in two or more problem domains is a pattern
- D.
An ability of two or more classes of objects to respond to the same message, each in its own way
Correct Answer
B. An object that continues to exist, maintaining its state, behavior, and identityExplanation
Persistence refers to the ability of an object to continue existing and maintaining its characteristics such as state, behavior, and identity. This means that even after the program or system is closed or restarted, the object will still retain its data and functionality. Persistence is important in many applications, especially those that involve storing and retrieving data from databases or other storage systems. By persisting objects, the system can ensure that the data remains consistent and available for future use.Rate this question:
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- 19.
The ability of two or more classes of objects to respond to the same message, each in it's own way, is known as
- A.
Service
- B.
Persistence
- C.
Polymorphism
- D.
Personification
Correct Answer
C. PolymorpHismExplanation
Polymorphism refers to the ability of different classes of objects to respond to the same message in their own unique way. It allows objects of different classes to be treated as objects of a common superclass, enabling code reusability and flexibility in object-oriented programming. This concept is fundamental in achieving code modularity and extensibility, as it allows for the implementation of different behaviors for objects based on their specific class types.Rate this question:
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- 20.
What is the first step in OOD?
- A.
Identify the objects
- B.
Define the problem
- C.
Identify the operations
- D.
Develop a problem solution statement
Correct Answer
B. Define the problemExplanation
The first step in Object-Oriented Design (OOD) is to define the problem. This involves understanding the requirements and constraints of the problem at hand. By clearly defining the problem, designers can establish a clear understanding of what needs to be solved and what the desired outcome should be. This step sets the foundation for the rest of the design process, as it helps identify the goals and objectives that need to be achieved. Once the problem is defined, designers can proceed to identify the objects, operations, and develop a problem solution statement.Rate this question:
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- 21.
In which step of the OOD is the object list created?
- A.
Identify the objects
- B.
Define the problem
- C.
Identify the operations
- D.
Develop a problem solution statement
Correct Answer
A. Identify the objectsExplanation
In the step of identifying the objects in the object-oriented design (OOD) process, the object list is created. This step involves analyzing the problem domain and determining the entities or objects that will be represented in the system. By identifying the objects, the designer can understand the key components of the system and their relationships, which is crucial for developing an effective OOD solution.Rate this question:
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- 22.
In which step of the OOD are the objects grouped with the operations?
- A.
Identify the objects
- B.
Establish interfaces
- C.
Identify the operations
- D.
Develop a problem solution statement
Correct Answer
B. Establish interfacesExplanation
In the step of "Establish interfaces" in OOD (Object-Oriented Design), the objects are grouped with the operations. This step involves defining the interfaces or contracts that specify the behavior of the objects. It focuses on identifying the methods or functions that the objects will have and how they will interact with each other. By establishing interfaces, the design ensures that the objects can communicate and collaborate effectively to achieve the desired functionality.Rate this question:
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- 23.
Data Stores are
- A.
Time-delayed repositories of data
- B.
External origins of inputs and the destinations for output
- C.
Activities occurring in the outside world to which the system must respond
- D.
Graphical tools used for depicting the partitioning of a system and its interfaces
Correct Answer
A. Time-delayed repositories of dataExplanation
Data Stores are time-delayed repositories of data. This means that they are locations where data is stored for a certain period of time before being accessed or used. They serve as a storage mechanism for data that is not immediately needed or processed. This delayed storage allows for efficient data management and retrieval when needed. Data Stores are different from external origins of inputs and destinations for output, as well as activities occurring in the outside world to which the system must respond. They are also different from graphical tools used for depicting system partitioning and interfaces.Rate this question:
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- 24.
Which of these is not one of the four data flow diagram elements?
- A.
Process
- B.
Data Store
- C.
Specification
- D.
Sources and Sinks
Correct Answer
C. SpecificationExplanation
The four data flow diagram elements are Process, Data Store, Sources and Sinks, and Specification. Since Specification is listed as one of the options, it is not the correct answer.Rate this question:
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- 25.
How is data flow represented in a DFD?
- A.
Bubble
- B.
Arrows
- C.
Rectangle
- D.
Parallel Lines
Correct Answer
B. ArrowsExplanation
In a Data Flow Diagram (DFD), data flow is represented by arrows. These arrows indicate the movement of data from one process to another or between processes and external entities. The direction of the arrow shows the flow of data, and the label on the arrow describes the data being transmitted. Arrows are a key component of DFDs as they visually depict the flow of information and help in understanding the system's data movement and processing.Rate this question:
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- 26.
How is a source/sink represented in a DFD?
- A.
Bubble
- B.
Arrows
- C.
Rectangle
- D.
Parallel Lines
Correct Answer
C. RectangleExplanation
In a Data Flow Diagram (DFD), a source/sink is represented by a rectangle. This rectangle symbolizes an external entity that either provides data to the system (source) or receives data from the system (sink). It represents an input or output point in the system where data enters or leaves. The rectangle shape is commonly used to depict external entities in DFDs as it clearly differentiates them from processes and data stores.Rate this question:
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- 27.
What is the DFD conservation rule?
- A.
A process is always running
- B.
A process should have no more inputs than it needs to generate its outputs
- C.
The only outputs from a process are those that can be generated using its inputs
- D.
Data flow is processed as it is received, while data in a data store can be accessed any time, in any order
Correct Answer
C. The only outputs from a process are those that can be generated using its inputsExplanation
The DFD conservation rule states that the only outputs from a process should be those that can be generated using its inputs. This means that a process should not produce any unnecessary or unrelated outputs. It ensures that the outputs of a process are directly related to its inputs and helps in maintaining the integrity and efficiency of the system.Rate this question:
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- 28.
What is the DFD persistence rule?
- A.
A process is always running
- B.
A process should have no more inputs than it needs to generate outputs
- C.
The only outputs from a process are those that can be generated using its inputs
- D.
Data flow is processed as it is received, but data in a Data Store can be accessed at any time, in any order
Correct Answer
A. A process is always runningExplanation
The DFD persistence rule states that a process is always running. This means that a process should be continuously active and performing its designated tasks. It should not stop or pause during the execution of the system. This ensures that the system remains functional and responsive at all times.Rate this question:
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- 29.
What is the DFD ordering rule?
- A.
A process is always running
- B.
A process should have no more inputs than it needs to generate outputs
- C.
The only outputs from a process are those that can be generated using it's inputs
- D.
Data Flow is processed as it is received, but data in a Data Store can be accessed at any time, in any order
Correct Answer
D. Data Flow is processed as it is received, but data in a Data Store can be accessed at any time, in any orderExplanation
The DFD ordering rule states that data flow is processed as it is received, meaning that it is processed in the order in which it is received. On the other hand, data in a Data Store can be accessed at any time and in any order, meaning that it does not have to follow a specific sequence. This rule ensures that the processing of data flows is efficient and that the data in the Data Store can be accessed flexibly as needed.Rate this question:
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- 30.
What happens to input data during a DFD change of nature?
- A.
Input data names are changed as processing occurs
- B.
Some type of editing or computation is done on the input data flow
- C.
The output data is the same as the input data, but the data is arranged differently
- D.
A single output is separated into its various components, or a component input is combined into a single data output item
Correct Answer
B. Some type of editing or computation is done on the input data flowExplanation
During a DFD change of nature, some type of editing or computation is done on the input data flow. This means that the input data is modified or processed in some way before being used in further stages of the system. This could involve performing calculations, applying transformations, or making changes to the data format or structure. The purpose of this editing or computation is to ensure that the input data is in the appropriate form for subsequent processing and to meet the requirements of the system.Rate this question:
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- 31.
What does a DFD change of organization mean?
- A.
Input data names are changed as processing occurs
- B.
Some type of editing or computation is done on the input data flow
- C.
The output data is the same as the input data but the data is arranged differently
- D.
A single input is separated into its various components, or a component input is combined into a single output item
Correct Answer
C. The output data is the same as the input data but the data is arranged differentlyExplanation
A DFD change of organization means that the output data remains the same as the input data, but the data is rearranged in a different way. This could involve reordering the data, grouping it differently, or organizing it in a different format. However, the actual data values themselves do not change, only the way they are presented or structured.Rate this question:
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- 32.
It is important to use guidelines when developing DFDs to
- A.
Identify design cost overruns
- B.
Exceed the standards required by management
- C.
Satisfy the configuration management and quality assurance
- D.
Clarify the design approach and ensure a quality design product
Correct Answer
D. Clarify the design approach and ensure a quality design productExplanation
When developing Data Flow Diagrams (DFDs), using guidelines helps to clarify the design approach and ensure a quality design product. Guidelines provide a structured framework for creating DFDs, which helps in organizing and representing the system's data flow. By following guidelines, designers can ensure that the DFD accurately represents the system's functionality and meets the requirements of stakeholders. This helps in avoiding any misunderstandings or ambiguities in the design, ultimately resulting in a high-quality design product.Rate this question:
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- 33.
What should be ignored on a DFD?
- A.
Initialization and termination details
- B.
Conditional primitive details
- C.
Input/output data flows
- D.
Major processes
Correct Answer
A. Initialization and termination detailsExplanation
On a Data Flow Diagram (DFD), initialization and termination details should be ignored. This means that the diagram should not include any information about how the system is initialized or terminated. Instead, the focus should be on the flow of data and the processes involved in the system. This is because DFDs are used to represent the flow of data within a system and to analyze how that data is transformed by different processes. Including initialization and termination details would be unnecessary and would clutter the diagram.Rate this question:
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- 34.
What is the system detailed design based on?
- A.
Organization
- B.
Data Dictionary
- C.
Initialization details
- D.
Structured specification documentation
Correct Answer
D. Structured specification documentationExplanation
The system detailed design is based on structured specification documentation. This documentation provides a clear and organized outline of the system's requirements, functionality, and design specifications. It includes detailed descriptions of the system's components, interfaces, data structures, and algorithms. By following this structured specification documentation, developers can ensure that the system is designed and implemented according to the specified requirements and standards.Rate this question:
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- 35.
When considering errors made on DFDs, one that is not a common error is
- A.
DFD has ambiguous data flow names
- B.
Process creates output from data that is not input
- C.
DFD excludes initialization and termination details
- D.
Process has "dead end" data flows that are input but are never used
Correct Answer
C. DFD excludes initialization and termination detailsExplanation
The statement "DFD excludes initialization and termination details" is not a common error because DFDs typically do include initialization and termination details. These details are important for understanding how the system starts and ends its processes.Rate this question:
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- 36.
What are the two main types of data in the DD?
- A.
Elementary and composite
- B.
Composite and records
- C.
Elementary and fields
- D.
Records and fields
Correct Answer
A. Elementary and compositeExplanation
The correct answer is "Elementary and composite." In data management, elementary data refers to individual data items that cannot be further broken down, such as a single value or character. On the other hand, composite data refers to data that is made up of multiple elementary data items, such as a record or structure. Therefore, the two main types of data in the DD (Data Dictionary) are elementary data and composite data.Rate this question:
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- 37.
A related collection of records is a
- A.
File
- B.
Record
- C.
Dictionary
- D.
Component
Correct Answer
A. FileExplanation
A related collection of records is referred to as a file. A file is a storage unit that contains related information or data organized in a structured manner. It is used to store and retrieve data efficiently. Files can be stored on various storage devices such as hard drives, solid-state drives, or cloud storage. They are an essential part of computer systems and are used in various applications and programs to store and manage data.Rate this question:
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- 38.
What must be considered when evaluating DD software applications?
- A.
Cost
- B.
Purpose
- C.
Manufacturer
- D.
Country of Origin
Correct Answer
B. PurposeExplanation
When evaluating DD software applications, the purpose of the software must be considered. This is because different software applications serve different purposes and have different functionalities. Evaluating the purpose of the software helps in determining if it aligns with the specific needs and requirements of the user or organization. Cost, manufacturer, and country of origin may also be important factors to consider, but the purpose of the software is the most essential aspect to evaluate.Rate this question:
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- 39.
What is the overall goal when you are selecting a DD?
- A.
Obtain a maintenance-free DD
- B.
Keep the conventions and standards you use simple
- C.
Select the dictionary having an acceptable amount of redundancy
- D.
Select the dictionary that meets as many of the requirements as possible
Correct Answer
D. Select the dictionary that meets as many of the requirements as possibleExplanation
The overall goal when selecting a DD is to choose the dictionary that fulfills the maximum number of requirements. This means that the selected dictionary should meet as many of the desired criteria or specifications as possible. By doing so, it ensures that the chosen DD will be able to effectively serve its intended purpose and meet the needs of the user.Rate this question:
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- 40.
Which E-R can have one entity occurrence of the first type that can relate to, at most, one entity occurrence of the second type and vice versa?
- A.
One-to-one
- B.
One-to-many
- C.
Many-to-one
- D.
Many-to-many
Correct Answer
A. One-to-oneExplanation
A one-to-one relationship in an entity-relationship model means that one entity occurrence of the first type can be associated with, at most, one entity occurrence of the second type, and vice versa. This suggests a unique and exclusive relationship between the two types, where each entity occurrence is linked to only one occurrence of the other type.Rate this question:
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- 41.
Which E-R can have one entity occurrence of the first type relating to zero, one, or multiple occurrences of the second type, as well as one occurrence of the second type relating to zero, one, or multiple occurrences of the first type?
- A.
One-to-one
- B.
Many-to-one
- C.
One-to-many
- D.
Many-to-many
Correct Answer
D. Many-to-manyExplanation
A many-to-many relationship in an entity-relationship (E-R) model allows for one entity occurrence of the first type to be related to zero, one, or multiple occurrences of the second type, and vice versa. This means that multiple entities of the first type can be associated with multiple entities of the second type, creating a many-to-many relationship between them.Rate this question:
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- 42.
What type of description ensures that all input and output data flows and all procedures related to the process are defined?
- A.
Explicit
- B.
Detailed
- C.
Complete
- D.
Ambiguity
Correct Answer
C. CompleteExplanation
Complete description ensures that all input and output data flows and all procedures related to the process are defined. A complete description leaves no room for ambiguity or confusion, providing a comprehensive understanding of the process. It includes all necessary details and specifications, leaving no gaps or missing information. This type of description ensures that all aspects of the process are clearly defined and understood, minimizing the risk of errors or misunderstandings.Rate this question:
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- 43.
What is commonly used during the structured code development process to give details of a functional primitive?
- A.
Ambiguity
- B.
Cardinality
- C.
E-R Diagram
- D.
Structured English
Correct Answer
D. Structured EnglishExplanation
Structured English is commonly used during the structured code development process to give details of a functional primitive. Structured English is a form of pseudocode that uses a combination of natural language and programming constructs to describe the logic and steps of a program. It helps in clearly defining the functionality of each primitive and provides a structured and standardized way of documenting the code development process.Rate this question:
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- 44.
A decision tree is characterized by
- A.
Displaying a large set of iterative primitives
- B.
Portraying structured text, program definition, or program design language
- C.
Displaying one or more sets of actions that are executed based on the state of conditions (true or false)
- D.
Portraying a hierarchy of independent conditions and the activities resulting from each valid combination of conditions
Correct Answer
D. Portraying a hierarchy of independent conditions and the activities resulting from each valid combination of conditionsExplanation
A decision tree is a graphical representation that portrays a hierarchy of independent conditions and the activities resulting from each valid combination of conditions. It helps in decision-making by providing a clear and structured visualization of different possible outcomes based on different conditions. By following the branches of the tree, one can determine the appropriate actions to be taken based on the current state of conditions (true or false). This hierarchical structure allows for easy understanding and evaluation of different scenarios, making decision trees a popular tool in various fields such as data analysis, machine learning, and problem-solving.Rate this question:
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- 45.
What is an algorithm used for?
- A.
Governing the transformation of input data flows into output data flows
- B.
Displaying one or more sets of actions that are executed based on the state of conditions (true or false)
- C.
Outlining the final solution that you must translate into a specific programming language with syntactical structures
- D.
Portraying a hierarchy of independent conditions and the activities resulting from a valid combination of conditions
Correct Answer
C. Outlining the final solution that you must translate into a specific programming language with syntactical structuresExplanation
An algorithm is used to outline the final solution that needs to be translated into a specific programming language with syntactical structures. It provides a step-by-step procedure or set of instructions to solve a problem or perform a task. The algorithm serves as a blueprint or plan for implementing the solution in a programming language, ensuring that the code follows the correct syntax and structure.Rate this question:
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- 46.
What are reserved words?
- A.
Algorithms written in structured english
- B.
Words you can express using specific parameters
- C.
Algorithms and syntax used in a particular programming language
- D.
Words having special meaning to a particular programming language
Correct Answer
D. Words having special meaning to a particular programming languageExplanation
Reserved words are words that have a special meaning in a particular programming language. These words are predefined and cannot be used as identifiers or variable names in the code. They are reserved for specific purposes, such as defining control structures, data types, or keywords in the language syntax. Using reserved words inappropriately can lead to syntax errors and confusion in the code. Therefore, it is important for programmers to be aware of and avoid using reserved words in their code.Rate this question:
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- 47.
What is an iterative primitive solution?
- A.
Step-by-step processing
- B.
A hierarchy of independent conditions
- C.
Code structured for repetitive execution
- D.
Alternative steps that may or may not be executed
Correct Answer
C. Code structured for repetitive executionExplanation
An iterative primitive solution refers to code that is structured in a way that allows for repetitive execution. This means that the code is designed to be executed in a loop or iteration, where a certain block of code is repeated multiple times until a specific condition is met. This approach is commonly used in programming to perform repetitive tasks efficiently and reduce code duplication. It allows for step-by-step processing and ensures that the same set of instructions is executed repeatedly until the desired outcome is achieved.Rate this question:
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- 48.
Data items arranged in the order in which they are stored and the same manner that they will be addressed describes the use of a/an
- A.
Linked list
- B.
Ordered list
- C.
Network list
- D.
Hierarchical list
Correct Answer
B. Ordered listExplanation
An ordered list is a data structure where the data items are arranged in a specific order, usually based on their values or keys. The order of the items in the list corresponds to the order in which they are stored in memory and the order in which they will be accessed. This allows for efficient searching and retrieval of items based on their position in the list. In contrast, a linked list does not necessarily have a specific order, a network list refers to a different type of data structure, and a hierarchical list organizes items in a hierarchical structure rather than a linear order.Rate this question:
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- 49.
A tree structure is best used to display database records that have what type of fields?
- A.
Repetetive
- B.
Duplicate
- C.
Indexed
- D.
Pointer
Correct Answer
A. RepetetiveExplanation
A tree structure is best used to display database records that have repetitive fields. This is because a tree structure allows for efficient organization and retrieval of data that has repeating or hierarchical patterns. Each node in the tree represents a record, and the branches represent the relationships between the records. This structure is particularly useful when dealing with data that has a parent-child relationship or when there are multiple instances of the same type of data.Rate this question:
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- 50.
Another structure name for a network is
- A.
Plex
- B.
Node
- C.
Pointer
- D.
Indexed
Correct Answer
A. PlexExplanation
Another structure name for a network is "plex".Rate this question:
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Mar 22, 2023Quiz Edited by
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Feb 26, 2017Quiz Created by
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