Neco 2018 Data Processing Question 4

Practice essay / theory question 4 from the 2018 Neco Data Processing examination. This question covers Types of Files and File Organization .

Neco 2018 Data Processing Essay / Theory
Topic: Types of Files and File Organization
Question 4 NECO • 2018 • DATA_PROCESSING • essay

A school maintains a digital file of its students' examination results. Each record contains the student's admission number (8 characters), name (up to 30 characters), and scores in three subjects (each an integer between 0 and 100). The file is to be stored on a computer for frequent retrieval of individual student results.

Question Parts

( a )
Distinguish between a text file and a binary file. State two advantages of using a binary file for the above application.
( b )
Explain the three common file organization methods (sequential, indexed, direct) and indicate which method would give the fastest access to a particular student's record. Justify your choice.
( c )
Assuming the file is stored as a binary file with fixed‑length records, calculate the minimum storage space required for 5,000 student records. (Assume 1 character = 1 byte, and each integer score occupies 2 bytes.)
( d )
The school decides to add a new field for the student's date of birth (format DD/MM/YYYY, 10 characters). Re‑calculate the storage requirement and state the percentage increase in file size compared with part (c).

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Neco 2018 Data Processing Question 4. It is one of the essay questions from the 2018 Neco Data Processing examination.

The question covers Types of Files and File Organization .

View More Neco 2018 Data Processing Questions More Neco Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support