03 DBMS MCQ 3

1.In E-R diagram, attribute is represented by …….
 (A)Rectangle
 (B)Square
 (C)Double Rectangle
 (D)Eclipse
2. The number of attribute in a relation is called its __________
 (A) Row
 (B) Column
 (C) Degree
 (D) None of the above
3. In a relational database, each tuple is divided into fields called
 (A) Relations
 (B) Domains
 (C)Queries
 (D) None of the above
4. Which of the following is a part of the Oracle database system
(A)Free lists
(B) Front end
(C) Network
(D) None of the above
5. Which of the following is used with database?
(A)ATM
(B)Payment gateway
(C)Data mining
(D)None of the above
6. In SQL, TCL stands for ___________
(A) Transmission control Language
(B) Transaction Central Language
(C) Ternary Control Language
(D) Transaction Control Language
7. Dr. E.F Codd represented…… rules that a database must obey if
        it has to be considered truly relational.
(A) 10
(B) 15
(C) 14
(D) 12
8.In E-R diagram, attribute is represented by …….
 (A)Rectangle
 (B) Square
 (C) Double Rectangle
 (D) Eclipse
9. A collection of conceptual tools for describing data, relationships, semantics and constraints is referred to as ………
 (A) Data Model
 (B) E-R Model
 (C) DBMS
 (D) All of the above
10. In E-R Diagram, weak entity is represented by…..
 (A) Rectangle
 (B)Square
 (C)Double Rectangle
 (D) Circle