Waec Data Processing 2019 Past Questions and Answers

Question 11:

• WAEC 2019

Virus effect can be prevented by ____________

A. Installing and updating antivirus
B. Installing new operating system
C. Purchasing new computer
D. Using external disk on public computer system

Question 12:

• WAEC 2019

The parts of the object in Figure 7 labeled II are called

A. Attribute
B. Entities
C. Models
D. Relations

Question 13:

• WAEC 2019

The arrangement that gives the correct order of magnitude of the database elements is ____________

A. Character, field, record, table, database, file
B. Character, field, record, table, file, database
C. Database, table, file, record, field, character
D. Database, record, file, field, table, character

Question 14:

• WAEC 2019

One unique feature of index file is that it contains

A. Reference number
B. Relative number
C. Sequential number
D. Static number

Question 15:

• WAEC 2019

Which of the following file organization requires a primary key

A. Indexed file organization
B. Random file organization
C. Serial file organization
D. Sequential file organization