Databases-Relational Model (GATE Computer Science): Questions 23 - 29 of 49

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Question number: 23

» Databases » Relational Model

MCQ▾

Question

________ are unsophisticated users who interact with the system by invoking one of the application programs that have been written previously.

Choices

Choice (4) Response
a.

Naive users

b.

Sophisticated users

c.

Specialized users

d. None of the above

Question number: 24

» Databases » Relational Model

MCQ▾

Question

E-R diagram generally map directly into columns for the appropriate tables and new tables are created for these attributes is called ________

Choices

Choice (4) Response
a.

weak entity

b.

attribute

c.

entity

d.

Multivalued attributes

Question number: 25

» Databases » Relational Model

MCQ▾

Question

A ________ is a statement requesting the retrieval of information.

Choices

Choice (4) Response
a.

data definition language

b.

query

c.

SQL

d.

data manipulation language

Question number: 26

» Databases » Relational Model

MCQ▾

Question

A person who has such central control over the system is called a ________.

Choices

Choice (4) Response
a.

Sophisticated

b.

Sophisticated users

c.

Naive users

d.

database administrator

Question number: 27

» Databases » Relational Model

MCQ▾

Question

A database system provides a ________ to specify the database schema

Choices

Choice (4) Response
a.

data definition language

b.

SQL

c.

Lines

d.

data manipulation language

Question number: 28

» Databases » Relational Model

MCQ▾

Question

The JDBC standard defines a ________.

Choices

Choice (4) Response
a.

API

b.

ODBC

c.

JSP

d. None of the above

Question number: 29

» Databases » Relational Model

MCQ▾

Question

The collection of information stored in the database at a particular moment is called an ________ of the database.

Choices

Choice (4) Response
a.

schema

b.

instance

c.

sub schemas

d. Question does not provide sufficient data or is vague

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