WAEC 2024/2025 Data Processing Answers

Data-Processing-Obj

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(1a)

(i) Access to vast information resources.

(ii) Facilitation of distance learning.

(iii) Collaboration opportunities among students and educators.

(iv) Enhanced interactive learning experiences.

(1b)

(i) Corrective maintenance addresses problems identified through testing or user feedback.

(ii) Adaptive maintenance modifies software to accommodate changes in the environment.

(iii) Preventive maintenance proactively addresses potential issues to prevent failures.

(2ai)

File organization is the way data is stored and arranged in a file system to facilitate efficient retrieval and storage of information.

(2aii)

– Sequential File Organization:

II. Records are inserted one after the other.

– Direct (Random) File Organization:

IV. It generates random key to identify location.

– Indexed File Organization:

I. It does not support the use of tapes.

– Hashed File Organization:

III. It does not generate random keys to identify location.

(2b)

Table 1:

| Attribute | Sequential File Organization | Indexed File Organization |

| — | — | — |

| 2 | No random key generation | Random key generation |

| 3 | No tape support | Supports tape storage |

(2bi)

(i) Keep food and drinks away from computers

(ii) Avoid touching internal computer components

(2bii)

(i) Google Chrome

(ii) Mozilla Firefox

(iii) Microsoft Edge

(4ai)

1. Exposure to harmful content

2. Risk of cyberbullying and online harassment

(4aii) Prevention measures:

1. Implement internet filters and blockers to restrict access to inappropriate websites

2. Establish clear internet usage policies and guidelines for students

3. Monitor student internet activity

4. Educate students about online safety and digital citizenship

(4b) One reason for user authentication before access to the system is granted:

1. To ensure that only authorized users (students and staff) have access to sensitive information and school data, maintaining confidentiality and security.

(5a)

Create a table with Table Design

(i) Select Create > Table Design.

(ii) In the new table, for the first field, enter a field name and a data type.

(iii) To set the primary key for the table, select the Field Name cell for the appropriate field and then select Primary Key.

(iv) Select File > Save, and name the table.

(5b)

Create a select query

Create a query to focus on specific data.

(i) Select Create > Query Wizard .

(ii) Select Simple Query, and then OK.

(iii) Select the table that contains the field, add the Available Fields you want to Selected Fields, and select Next.

(iv) Choose whether you want to open the query in Datasheet view or modify the query in Design view, and then select Finish.

(5c)

Create a new split form by using the Split Form tool

(i) In the Navigation Pane, click the table or query that contains the data that you want on your form. Or, open the table or query in Datasheet view.

(ii) On the Create tab, in the Forms group, click More Forms, and then click Split Form.

(5d)

In the Navigation Pane, select the report that you want to print. Click File and then click Print. On the Print area of the File options, click the Print option to open the Print dialog box. Change the page format setup or other print options or printer selection as needed, and then click OK to print your report.

(6a)

1. Open the document in MS Word.

2. Click on the “Layout” tab in the top menu.

3. Click on “Orientation” and select “Landscape” from the dropdown menu.

4. Next, click on the “Size” option in the “Layout” tab.

5. Select “A4” from the list of paper sizes.

6. Once the orientation and paper size are set, go to the “File” tab in the top menu.

7. Click on “Print” to open the print settings.

8. Ensure that the correct printer is selected.

9. Adjust any additional print settings as needed (e.g., number of copies, color vs. grayscale).

10. Finally, click on the “Print” button to print the document in landscape orientation on A4 paper.

(6bi)

“Freeze Panes”.

(6bii)

1. Select the cell below the row you want to keep visible while scrolling.

2. Go to the “View” tab on the Excel ribbon.

3. Click on “Freeze Panes” in the “Window” group.

4. Select “Freeze Top Row” to keep the top row visible, or “Freeze First Column” to keep the leftmost column visible, or “Freeze Panes” to keep both the top row and the leftmost column visible.

(6biii)

(i) Using the “Split” feature to view two different parts of the worksheet at the same time.

(ii)Opening a new window for the same Excel file to compare the student records side by side.

(6biv)

1. For using the “Split” feature:

– Go to the “View” tab on the Excel ribbon.

– Click on “Split” in the “Window” group to split the window into different panes.

– Adjust the split bars to view different parts of the worksheet.

2. For opening a new window:

– Go to the “View” tab on the Excel ribbon.

– Click on “New Window” in the “Window” group to open a new window for the same Excel file.

– Arrange the windows side by side for comparison.

(6c)

(i)Projector: To project the laptop or computer screen onto a large screen or wall for the audience to see.

(ii)Screen or Display: To provide a surface for the projected content to be displayed clearly to the audience.

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