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NECO 2024 Data Processing OBJ/ESSAY answers are now available. If you are writing this subject, here is the 2024 NECO Data Processing Questions June/July verified solution. The NECO Data Processing Exam will commence on the 18th of July, 2024.
The National Examinations Council (NECO) is a Nigerian examination body responsible for conducting and administering national examinations at the secondary school level. NECO plays a crucial role in assessing and certifying students’ academic achievements across various subjects.
The NECO Data Processing exam will assess students’ understanding of data processing concepts, principles, and their ability to apply this knowledge to solve problems. It includes both objective and essay questions, requiring a solid grasp of topics like data organization, storage, retrieval, and computer systems.
We know how hard it is to understand data processing concepts. You do not need to worry as we are going to make everything easy for you, including the answers.
This is to inform the general public and all the students writing, especially those in the technology and computer sciences, that the DATA PROCESSING EXPO answers are ready with us. We ensured that the answers are in line with the marking scheme.
NECO 2024 DATA PROCESSING OBJ/ESSAY QUESTIONS AND ANSWERS
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2024 NECO Data Processing OBJ/ESSAY Answers
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2024 DATA PROCESSING ESSAY
NUMBER 1
(1ai)
A Database Management System (DBMS) is software that helps you store, manage, and retrieve data from a database. Think of it like a digital filing cabinet where all your data is organized and easy to access.
(1aii)
(PICK ANY TWO)
(i) Improved Data Sharing: A DBMS allows multiple users to access and share data simultaneously. This is particularly useful in organizations where different departments need access to the same data.
(ii) Data Security: DBMS provides robust security features to protect data from unauthorized access. This ensures that sensitive information is only available to those with the proper permissions.
(iii) Reduced Data Redundancy: By centralizing data storage, a DBMS minimizes the duplication of data. This means that the same piece of data is not stored in multiple places, reducing storage costs and improving data consistency.
(iv) Data Integrity: A DBMS enforces rules and constraints to ensure the accuracy and reliability of data. For example, it can prevent entering incorrect or duplicate information, maintaining the overall quality of the data.
(v) Efficient Data Management: A DBMS provides tools and interfaces for efficient data manipulation and management. This includes easy data retrieval, updates, and reporting, making it simpler to manage large volumes of data effectively.
(1b)
(i) Conceptual Data Modeling: This is the first step in data modeling. It involves creating a high-level map of the data, focusing on the important entities and their relationships. The goal is to understand the overall structure of the data without worrying about how it will be implemented. Think of it as a blueprint that shows what data is needed and how it is connected.
(ii) Logical Data Modeling: This step builds on the conceptual model by adding more detail. It involves defining the specific attributes of each entity and the relationships between them, but still remains independent of any specific database technology. The logical model provides a more detailed view of the data structure and helps ensure that all data requirements are accurately captured.
(iii) Physical Data Modeling: This is the final step where the logical model is translated into a specific database design. It involves defining how the data will be stored in the database, including tables, columns, data types, and indexes. The physical model takes into account the performance, storage, and other technical aspects of the database system that will be used to implement the data model.
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NUMBER 2
(2a)
(i) Log Files: Log files are records of events that occur within a computer system or network, tracking activities such as user logins, file accesses, and system changes. In data security, log files are essential for monitoring and auditing purposes. They help detect and analyze suspicious activities, track unauthorized access, and provide a historical record of system events. By regularly reviewing log files, organizations can identify security breaches, troubleshoot issues, and ensure compliance with regulatory requirements. Log files also provide evidence during forensic investigations after a security incident.
(ii) Firewalls: A firewall is a network security device or software that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Firewalls act as a barrier between a trusted internal network and untrusted external networks, such as the internet. They help protect sensitive data and systems from cyber threats by blocking unauthorized access and allowing only legitimate traffic. Firewalls enhance data security by preventing malicious attacks, such as malware and hacking attempts, from reaching the internal network. They also enforce security policies, filter harmful content, and create a secure environment for data transmission.
(2b)
(PICK ANY FOUR)
(i) Corrective Maintenance
(ii) Adaptive Maintenance
(iii) Perfective Maintenance
(iv) Preventive Maintenance
(v) Emergency Maintenance
(vi) Predictive Maintenance
(PICK ANY TWO)
(i) Corrective Maintenance: Corrective maintenance involves fixing bugs or errors that are discovered in the software after it has been released. This type of maintenance addresses issues that prevent the software from functioning correctly, such as crashes, incorrect outputs, or security vulnerabilities. The goal is to restore the software to its expected operational state.
(ii) Adaptive Maintenance: Adaptive maintenance is the process of updating software to keep it compatible with changes in the environment, such as new operating systems, hardware, or other software applications. This ensures that the software continues to function properly as the surrounding technology evolves. For example, updating a program to work with a new version of an operating system is adaptive maintenance.
(iii) Perfective Maintenance: Perfective maintenance involves making improvements to the software based on user feedback or new requirements. These enhancements might include adding new features, improving performance, or optimizing the user interface. The goal is to enhance the software’s functionality and user satisfaction without fixing existing problems.
(iv) Preventive Maintenance: Preventive maintenance aims to identify and address potential issues before they become significant problems. This involves activities like code refactoring, updating documentation, and performing regular system checks. The purpose is to improve the software’s reliability and extend its life by preventing future issues.
(v) Emergency Maintenance: Emergency maintenance is performed in response to an unexpected and urgent issue that needs immediate attention. This could be a critical bug that causes a system outage or a security breach that needs to be addressed right away. Emergency maintenance is often unplanned and requires quick action to minimize disruption and restore normal operations.
(vi) Predictive Maintenance: Predictive maintenance uses data analysis and monitoring tools to predict when a software component is likely to fail or require maintenance. By analyzing patterns and trends, developers can proactively address issues before they occur, reducing downtime and improving system reliability. This approach leverages advanced techniques like machine learning and statistical analysis to anticipate maintenance needs.
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NUMBER 3
(3ai)
(PICK ANY TWO)
A workbook is a file used by spreadsheet programs like Microsoft Excel or Google Sheets. It contains one or more worksheets (also called spreadsheets), each of which is a grid of cells organized in rows and columns.
(3aii)
(i) Navigation Menu: This feature helps users move around the website easily. It usually includes links to different sections or pages of the site, such as Home, About Us, Services, Contact, and more.
(ii) Responsive Design: A responsive design ensures that the website looks good and functions well on various devices, including desktops, tablets, and smartphones. It adjusts the layout and content to fit different screen sizes.
(iii) Search Functionality: A search bar allows users to quickly find specific content on the website by typing in keywords or phrases. This is particularly useful for websites with a lot of information or products.
(iv) Multimedia Content: Websites often include various forms of multimedia, such as images, videos, and audio files, to enhance user engagement and provide a richer experience. This content can help explain concepts, showcase products, or entertain visitors.
(v) Contact Form: A contact form lets visitors send messages directly to the website owner or support team. It typically includes fields for name, email, subject, and message, making it easy for users to get in touch for inquiries or support.
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NUMBER 4
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2024 NECO DATA PROCESSING OBJ & ESSAY QUESTIONS:
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