Waec Data Processing Past Questions
Question 41
The exchange of information over a network follows a set of rules called
- A. transmission rules
- B. transfer rules
- C. channels rules
- D. protocols
Question 42
In a relational database management system, files are organized as relations and
- A. tuple
- B. modules
- C. tables
- D. forms
Question 43
One of the advantages of a parallel database is
- A. data sharing
- B. data security
- C. faster processing of data
- D. uniform memory access
Question 44
A program developed to protect the computer from malicious software is referred to as
- A. trojan
- B. driver
- C. antivirus
- D. spyware
Question 45
The diagram illustrates the relationship between two tables in a database.
What type of relationship exists between Tables I and II?
- A. one to one
- B. three to four
- C. four to three
- D. one to many
