DATABASE CONCEPTS TEST EXAM
2025 QUESTIONS AND ANSWERS
Every cell in a relation can hold only a single value - ANS True
SQL stands for Structural Question Language (SQL) - ANS False
By separating data into tables containing data only one theme each, making changes to the
data is simplified - ANS True
A relational database can be defined as a self-describing collection of related tables -
ANS True
A key must be unique - ANS False
To represent a relationship in the relational model, the primary key of one relation is placed
into a second relation - ANS True
Application programs are responsible for creating, maintaining, and supporting database
backup and recovery systems - ANS False
To create a well-formed relation through normalization, every determinant must be a candidate
key. - ANS True
1 @COPYRIGHT THESTAR 2025/2026
2025 QUESTIONS AND ANSWERS
Every cell in a relation can hold only a single value - ANS True
SQL stands for Structural Question Language (SQL) - ANS False
By separating data into tables containing data only one theme each, making changes to the
data is simplified - ANS True
A relational database can be defined as a self-describing collection of related tables -
ANS True
A key must be unique - ANS False
To represent a relationship in the relational model, the primary key of one relation is placed
into a second relation - ANS True
Application programs are responsible for creating, maintaining, and supporting database
backup and recovery systems - ANS False
To create a well-formed relation through normalization, every determinant must be a candidate
key. - ANS True
1 @COPYRIGHT THESTAR 2025/2026
