Waec Data Processing Past Questions For Year 2018
Question 1
Arranging records in a file according to a particular order is referred to as
- A. matching
- B. merging
- C. sorting
- D. updating
Question 2
Which of the foolowing statements about relational model is not correct?
- A. A file is a sequence of related records
- B. A record consist of a row of data containing single value from each column
- C. Data in the column of a table are of the same data type
- D. Data in the rows of a table are of the same data type
Question 3
A relational database model is designed according to set of rules known as
- A. Normalization
- B. Isolation
- C. Grouping
- D. Enumeration
Question 4
The following are attributes of computer virus except the ability to
- A. modify other files
- B. replicate itself in order to spread to other files and system
- C. execute without the user's approval
- D. warn the user before execution
Question 5
Computer virus is not transmitted through
- A. formatting of documents
- B. email
- C. external storage device
- D. internet
