DBMS MCQ 02
1.
Which can choose from several approaches to manage data:
a.
b.
c.
d.
DBMS
DDL
SDL
CDL
2. Which provides mechanisms to structure data in the data base being modeled:
.B
lo
gS
po
t
.In
DBMS
DDL
SDL
CDL
3. E-R stands for:
nd
uH
Entry relationship
Entity relationship
Both
None
G
a.
b.
c.
d.
ub
a.
b.
c.
d.
4. Which models a collection of various concepts that are use to describe the structure of a
data base:
a.
b.
c.
d.
5. Data
a.
b.
c.
d.
Data base
Data model
Data
Recorded
at the conceptual level and view level can be describe with the help of____:
Data model
Relation model
Record based logical model
All of these
6. How many types of record based logical models:
a.
b.
c.
d.
1
2
3
4
7. Which are the types of record based logical models:
Relational
Network
Hierarchical
All of these
.In
a.
b.
c.
d.
ub
2
4
5
6
nd
uH
a.
b.
c.
d.
.B
lo
gS
po
t
8. E-R model entities and their relationship are corresponded as ___ dimensional tables:
G
9. Which are the not properties of a relation are:
a. Row order are insignificant
b. Column order are insignificant
c. The values are atomic
d. None of these
10. Which is the various key:
a.
b.
c.
d.
e.
f.
g.
h.
i.
Super key
Primary key
Secondary key
Alternate key
Candidate key
Foreign key
Concatenated key
All off these
None f these
11. Which is a primary domain:
a.
b.
c.
d.
Domain
Data
Register
Models
12. In which year the relational model introduced:
1969
1970
1971
1972
.B
lo
gS
po
t
.In
a.
b.
c.
d.
E.F. codd
F.F. codd
E.E. codd
None of these
nd
uH
a.
b.
c.
d.
ub
13. In which person introduced the relational model:
G
14. How many components in relational model:
a.
b.
c.
d.
1
2
3
4
15. Which components are use in make up the relational model:
a.
b.
c.
d.
Structural
Manipulative
Integrity
All off these
16. Who is represent a data base as a collection of relation value:
a.
b.
c.
d.
Data model
Relation model
Record based logical model
All of these
17. The heading of a relation is also referred to as ________:
Relation schema
Intension
Both
None
.B
lo
gS
po
t
.In
a.
b.
c.
d.
Extension
Criterion
Relation
None of these
nd
uH
a.
b.
c.
d.
ub
18. In relational model the body of the relation is referred to as_______:
G
19. Which is the set of defined atomic values for an attribute:
a.
b.
c.
d.
Domain
Data
Register
Models
20. Which is the name of role played by a domain in the relation:
a.
b.
c.
d.
Relational schema
Domain
Attribute
Relation
21. Which is made up of relation name and a list of attributes:
a.
b.
c.
d.
Relational schema
Domain
Attribute
Relation
22. A ______ is defined as the subset of the subset of the Cartesian product of domains:
Extension
Criterion
Relation
None of these
.B
lo
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po
t
.In
a.
b.
c.
d.
2
3
4
5
nd
uH
a.
b.
c.
d.
ub
23. SQL schema is how many types of relation schema may be defined:
G
24. In a SQL schema may be defined as which types:
a.
b.
c.
d.
VIEWS
BASE RELATION
BOTH
NONE
25. CAD stands for:
a.
b.
c.
d.
Computer aided design
Computer aided data
Computer aided database
None of these
26. Which is refers to knowledge about the meaning of data:
a.
b.
c.
d.
Data types
Base relation
Semantic knowledge
All of these
27. In which is do not fully support the domain concept:
DBMS
DBS
RDBMS
All of these
.B
lo
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po
t
.In
a.
b.
c.
d.
DBS
DBMS
DDL
DML
nd
uH
a.
b.
c.
d.
ub
28. Which is used for searching and retrieving records from the database:
G
29. How many types of data structures used in hierarchical model:
a.
b.
c.
d.
2
3
4
5
30. PCR stands for:
a. Primary child relationship
b. Parent child relationship
c. Both
d. None
31. Which types of data structures used in Hierarchical model:
a.
b.
c.
d.
PCR
Records
Both
None
32. _____it is an1:N relationship between two different record types:
a.
b.
c.
d.
DATA
RELTION
PCR
All of these
33. Which is a database model used to represent objects and the relationship among these
objects:
.In
Data model
Relation model
Hierarchical model
Network model
.B
lo
gS
po
t
a.
b.
c.
d.
G
nd
uH
ub
34. RDBMS stands for:
a. Relational database management system
b. Relational database management structured
c. Relational database management search
d. Relational database management sum