Correct Answer is: none of these

Correct Answer is: is the entire database.

DBMS MCQ Multiple Choice Questions Answers - Page 5 | Quiz for Practice

Q: 61. The full form of DDL is

Correct Answer is: Data Definition Language

Q: 62. In E-R Diagram derived attribute are represented by

Correct Answer is: Dashed ellipse

Q: 65. Which of the following is a comparison operator in SQL?

Correct Answer is: All of the above

Q: 70. Conceptual design

Correct Answer is: involves modelling independent of the DBMS.

Q: 71. The relational model feature is that there

Correct Answer is: is much more data independence than some other database models.

Q: 74. The property / properties of a database is / are :

Correct Answer is: All of the above.

DBMS MCQ Questions for Practice

61. The full form of DDL is

Dynamic Data Language
Detailed Data Language
Data Definition Language
Data Derivation Language

62. In E-R Diagram derived attribute are represented by

Ellipse
Dashed ellipse
Rectangle
Triangle

63. In E-R Diagram relationship type is represented by

Ellipse
Dashed ellipse
Rectangle
Diamond

64. In E-R diagram generalization is represented by

Ellipse
Dashed ellipse
Rectangle
Triangle

65. Which of the following is a comparison operator in SQL?

Equals To
LIKE
BETWEEN
All of the above

66. Which database level is closest to the users?

External
Internal
Physical
Conceptual

67. In a Hierarchical model records are organized as

Graph.
List.
Links.
Tree.

68. The method in which records are physically stored in a specified order according to a keyfield in each record is

hash.
direct.
sequential.
all of the above.

69. The database schema is written in

70. Conceptual design

is a documentation technique.
needs data volume and processing frequencies to determine the size of the database.
involves modelling independent of the DBMS.
is designing the relational model.

71. The relational model feature is that there

is no need for primary key data.
is much more data independence than some other database models.
are explicit relationships among records.
are tables with many dimensions.

72. A logical schema

is the entire database
is a standard way of organizing information into a accessible part
describe how data is actually stored on disk
none of these

73. A logical schema

is the entire database.
is a standard way of organizing information into accessible parts.
describes how data is actually stored on disk.
both B and C

74. The property / properties of a database is / are :

It is an integrated collection of logically related records.
It consolidates separate files into a common pool of data records.
Data stored in a database is independent of the application programs using it.
All of the above.

75. A table joined with itself is called

Join
Self Join
Outer Join
Equi Join