DBMS Questions – Set 2
1. Rows of a relation are called ________
(A) entity
(B) degree
(C) tuples
(D) None of the above
Answer
(C) tuples
2. The number of tuples in a relation is termed as ______
(A) cardinality
(B) entity
(C) column
(D) None of the above
Answer
(A) cardinality
3. In SQL, Which of the following is a Data Manipulation Language(DML) command?
(A) create
(B) alter
(C) merge
(D) drop
Answer
(C) merge
4. ….. is a top-down approach in which one higher level entity can be divided into two lower
level entities.
(A) Aggregation
(B) Specialization
(C) Generalization
(D) None of the above
Answer
(B) Specialization
5. Which of the following is not a type of database?
(A) Hierarchical
(B) Relational
(C) Network
(D) Transition
Answer
(D) Transition
6. In a relational database, each tuple is divided into fields called_______
(A) Relations
(B) Domains
(C) Queries
(D) None of the above
Answer
(B) Domains
7. In E-R Diagram, attribute is represented by…….
(A) Rectangle
(B) Square
(C) Double Rectangle
(D) eclipse
Answer
(D) eclipse
8. In SQL, TCL stands for______
(A) Transmission Control Language
(B) Transaction Central Language
(C) Ternary Control Language
(D) Transaction Control Language
Answer
(D) Transaction Control Language
9. 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
Answer
(B) Front end
10. Which of the following is used with database?
(A) ATM
(B) Payment gateway
(C) Data Mining
(D) None of the above
Answer
(C) Data Mining
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