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Welcome to the DBMS MCQs Page

Dive deep into the fascinating world of DBMS with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of DBMS, a crucial aspect of UGC CBSE NET Exam. In this section, you will encounter a diverse range of MCQs that cover various aspects of DBMS, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within UGC CBSE NET Exam.

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Check out the MCQs below to embark on an enriching journey through DBMS. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of UGC CBSE NET Exam.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of DBMS. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

DBMS MCQs | Page 10 of 23

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Q91.
How to express that some person keeps animals as pets ?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q92.
Manager's salary details are hidden from the employee. This is called as

a.

Conceptual level data hiding

b.

Physical level data hiding

c.

External level data hiding

d.

Local level data hiding

Discuss
Answer: (c).External level data hiding
Q93.
Which of the following statements is false ?

a.

Any relation with two attributes is in BCNF.

b.

A relation in which every key has only one attribute is in 2NF.

c.

A prime attribute can be transitively dependent on a key in 3NF relation.

d.

A prime attribute can be transitively dependent on a key in BCNF relation.

Discuss
Answer: (d).A prime attribute can be transitively dependent on a key in BCNF relation.
Q94.
A clustering index is created when ................

a.

primary key is declared and ordered

b.

no key ordered

c.

foreign key ordered

d.

there is no key and no order

Discuss
Answer: (a).primary key is declared and ordered
Q95.
Let R ={A, B, C, D, E, F} be a relation schema with the following dependencies C→F,E→A,EC→D,A→B
Which of the following is a key for R ?

a.

CD

b.

EC

c.

AE

d.

AC

Discuss
Answer: (b).EC
Q96.
Match the following:

List-I                                          List-II
a. DDL                                        i. LOCK TABLE
b. DML                                       ii. COMMIT
c. TCL                                        iii. Natural Difference
d. BINARY Operation             iv. REVOKE

​Codes:
      a    b    c    d

a.

ii     i    iii    iv

b.

i     ii    iv    iii

c.

iii   ii    i     iv

d.

iv   i    ii     iii

Discuss
Answer: (d).iv   i    ii     iii
Q97.
The student marks should not be greater than 100. This is

a.

Integrity constraint

b.

Referential constraint

c.

Over-defined constraint

d.

Feasible constraint

Discuss
Answer: (a).Integrity constraint
Q98.
Consider the following ER diagram. The minimum number of tables required to represent M, N, P, R1, R2 is

a.

2

b.

3

c.

4

d.

5

Discuss
Answer: (a).2
Q99.
Usage of Preemption and Transaction Rollback prevents ..................

a.

Unauthorised usage of data file

b.

Deadlock situation

c.

Data manipulation

d.

File pre-emption

Discuss
Answer: (b).Deadlock situation
Q100.
Views are useful for ................. unwanted information, and for collecting together information from more than one relation into a single view.

a.

Hiding

b.

Deleting

c.

Highlighting

d.

All of the above

Discuss
Answer: (a).Hiding
Page 10 of 23

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