Neco 2017 Data Processing Question 34

Practice objective / multiple choice question 34 from the 2017 Neco Data Processing examination.

Neco 2017 Data Processing Objective / Multiple Choice Medium Difficulty
Question 34 NECO • 2017 • DATA_PROCESSING • objective

In the data‑processing cycle, the stages are Input, Validation, Processing, Storage and Output. A company discovers that its monthly sales report contains duplicate records. Which stage is most likely responsible for this error, and what single procedural change can be introduced at that stage to prevent the duplication?

Answer Options

A. Input stage; add a data entry validation form to catch errors at entry
Correct Answer B. Validation stage; introduce a uniqueness/duplicate check during validation
C. Processing stage; implement a batch de‑duplication algorithm after processing
D. Storage stage; enforce primary key constraints in the database to prevent duplicate rows
Correct Answer
B
Correct Option:
Validation stage; introduce a uniqueness/duplicate check during validation

About This Question

This is Neco 2017 Data Processing Question 34. It is one of the objective questions from the 2017 Neco Data Processing examination.

Difficulty level: Medium .

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