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Contents
NECO Data processing Essay And Obj 2025 Date
According to the NECO timetable, the 2025 NECO Data processing Essay And Objective paper will hold on 26th june, 2025 by 10:00am – 1:00pm
NECO DATA PROCESSING ANSWERS 2025
==============================================
DATA PROCESSING
01-10: AABDDEBBEA
11-20: ACEBDAACAD
21-30: EABEAABDAB
31-40: DCACACAABC
41-50: CCEDAABADD
51-60: CCCADDACEA
==============================================
INSTRUCTIONS: ANSWERS ANY FOUR QUESTIONS ONLY
==============================================
(1ai)
Digitalisation is the process of converting information into a digital format, where data is organized into bits. It involves the adoption of digital technologies to change business models and provide new revenue and value-producing opportunities.
(1aii)
(PICK ANY TWO)
(i) Improved efficiency and productivity
(ii) Easier access to information and services
(iii) Enhanced communication and collaboration
(iv) Reduction in operational costs
(v) Better data management and decision-making
(1bi)
Check the image below
(1bii)
Convert 143₁₀ to binary.
143 ÷ 2 = 71 remainder 1
71 ÷ 2 = 35 remainder 1
35 ÷ 2 = 17 remainder 1
17 ÷ 2 = 8 remainder 1
8 ÷ 2 = 4 remainder 0
4 ÷ 2 = 2 remainder 0
2 ÷ 2 = 1 remainder 0
1 ÷ 2 = 0 remainder 1
Answer = 10001111₂
==============================================
(2ai)
Mainframe computer
(2aii)
General-purpose computer
(2b)
A general-purpose computer is designed to perform a wide variety of tasks. It can be used for word processing, internet browsing, gaming, and more.
(2ci)
(PICK ANY THREE)
(i) Education
(ii) Healthcare
(iii) Banking
(iv) Agriculture
(v) Transportation
(2cii)
(PICK ANY THREE)
(i) Cyberbullying
(ii) Job loss due to automation
(iii) Internet addiction
(iv) Spread of misinformation
(v) Data privacy breaches
==============================================
(3ai)
A word processing package is software used to create, edit, format, and print text documents (e.g., Microsoft Word).
(3aii)
=Microsoft Word=
(PICK ANY ONE)
(i) Spell check
(ii) Text formatting
(iii) Inserting images and tables
(iv) Page layout and design tools
(v) Mail merge
=Microsoft Excel=
(PICK ANY ONE)
(i) Use of formulas and functions
(ii) Charts and graphs
(iii) Data sorting and filtering
(iv) Cell referencing
(v) Pivot tables
(3b)
(i) Highlight the text
(ii) Press Ctrl + B to make it bold
(iii) Press Ctrl + I to make it italics
(iv) Press Ctrl + U to underline it
(3ci)
A range is a selection of two or more cells in a spreadsheet. It is identified by the cell references of the upper-left and lower-right corners, such as A1:C3.
(3cii)
A worksheet is a single spreadsheet page within a workbook in Excel. It consists of rows and columns used to organize, calculate, and analyze data.
==============================================
(4ai)
A data model is a conceptual representation of data objects, their relationships, and the rules governing them.
(4aii)
(PICK ANY TWO)
(i) Assists in database design
(ii) Improves data consistency
(iii) Facilitates communication among stakeholders
(iv) Helps identify data relationships
(v) Serves as a blueprint for data integration
(vi) Aids in ensuring data integrity
(4b)
Web design refers to the process of planning, creating, and maintaining websites using tools and languages such as HTML, CSS, and JavaScript to ensure proper layout, responsiveness, and functionality of web pages. WHILE graphic packages are software applications like Adobe Photoshop or CorelDRAW used for creating, editing, and enhancing visual content such as images, illustrations, and designs for print or digital media.
(4c)
(i) Single-user Operating System: This type of operating system allows only one user to operate the computer at a time. It is designed for individual use and does not support multiple users simultaneously.
(ii) Multi-user Operating System: This type allows two or more users to access a computer system at the same time. It is commonly used in servers and large systems where many users need access to shared resources.
==============================================
(5ai)
The Internet is a global network of interconnected computers that communicate and share information using standardized communication protocols.
(5aii)
Sign-in is the process where a user enters their credentials, such as a username or email and a password, to access an already existing account on a website or application, allowing them to use personalized features and services, WHILE sign-up is the initial registration process where a user provides personal information like name, email address, and a chosen password to create a new account before they can sign in or use the platform’s full services.
(5b)
(PICK ANY TWO)
(i) Improved reliability
(ii) Faster access to data
(iii) Increased availability
(iv) Better fault tolerance
(v) Scalability
(vi) Local autonomy
(5c)
(i) URL – Uniform Resource Locator
(ii) ISP – Internet Service Provider
(iii) PPP – Point-to-Point Protocol
(iv) HTML – HyperText Markup Language
==============================================
(6ai)
A switch is a network device used to connect multiple devices within a local area network (LAN). It receives data from one device and forwards it only to the specific device it is intended for. This helps reduce unnecessary traffic and improves overall network performance.
(6aii)
A hub is a basic networking device that connects several devices in a LAN. Unlike a switch, it sends incoming data to all connected devices, not just the intended recipient, which can lead to network congestion and reduced efficiency.
(6bi)
(PICK ANY TWO)
(i) Infected email attachments
(ii) Downloading software from untrusted websites
(iii) Using infected USB drives
(iv) Clicking on malicious pop-up ads
(v) Visiting compromised or unsafe websites
(vi) Installing pirated software
(vii) File sharing on unsecured networks
(6bii)
(PICK ANY TWO)
(i) Install and update antivirus software
(ii) Avoid clicking suspicious links or attachments
(iii) Download software only from trusted sources
(iv) Regularly update your operating system
(v) Use strong passwords and authentication
(vi) Enable firewalls
(vii) Avoid using unknown USB drives
(6ci)
Alt + Esc: Cycles through open windows in the order they were opened, allowing the user to quickly switch between applications.
(6cii)
Ctrl + Backspace: Deletes the entire word to the left of the cursor, making text editing faster and more efficient.
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