Data Processing Practice Test – Data Modeling

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Data Processing Practice Test – Data Modeling

Hello and Welcome to Data Processing Practice Test - Data Modeling

  1. You are to attempt 5 random objectives questions ONLY.
  2. Supply Your Full Name and Location in the text box below and begin immediately.
  3. You can attempt as many times as possible.
1. 


Why is it a mistake to use a text data type to store money values? (NECO 2015)

A. Calculation cannot be performed
B. Decimal place cannot be displayed
C. Currency sign cannot be displayed
D. Data cannot be sorted

2. 



Column 2 and 3 in the table above cannot be used as primary key because both fields contain ______ (WASSCE 2023)

A. the same datatype
B. only strings and numbers respectively
C. duplicate values
D. different datatypes

3. 


The database tool that allows the user to select and filter data from multiple tables is referred to as _______

A. form   B. query   C. report   D. table

4. 


A relational database model is designed according to set rules known as ______ (WASSCE 2018)

A. normalization      B. isolation     C. grouping     D. enumeration

5. 


The logical and physical structural arrangement of database to accommodate information needed by the user is called ______ (NECO 2015)

A. Conceptual design.
B. Database design.
C. Entity-relationship.
D. Relationship model.

 

 

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