Waec Data Processing 2018 Past Questions and Answers

Question 11:

• WAEC 2018

Computer virus is not transmitted through ____________

A. Formatting of documents
B. Email
C. External storage device
D. Internet

Question 12:

• WAEC 2018

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 13:

• WAEC 2018

A relational database model is designed according to set of rules known as ____________

A. Normalization
B. Isolation
C. Grouping
D. Enumeration

Question 14:

• WAEC 2018

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 15:

• WAEC 2018

Arranging records in a file according to a particular order is referred to as ____________

A. Matching
B. Merging
C. Sorting
D. Updating