Dbms Mcq Questions

Q.1 In the relational modes, cardinality is termed as:

 (A) Number of tuples. (B) Number of attributes.

 (C) Number of tables. (D) Number of constraints.


 Ans: A


Q.2 Relational calculus is a

 (A) Procedural language. (B) Non- Procedural language.

 (C) Data definition language. (D) High level language.


 Ans: B



Q.3 The view of total database content is

 (A) Conceptual view. (B) Internal view.

 (C) External view. (D) Physical View.



 Ans: A



Q.4 Cartesian product in relational algebra is

 (A) a Unary operator. (B) a Binary operator.

 (C) a Ternary operator. (D) not defined.



 Ans: B Cartesian product in relational algebra is a binary operator.

 (It requires two operands. e.g., P X Q)