Topic 4

Topic 4

University

85 Qs

quiz-placeholder

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Topic 4

Topic 4

Assessment

Quiz

Science

University

Practice Problem

Easy

Created by

Vy Hạ

Used 58+ times

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85 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A form of database design which maps conceptual requirements is called:

logical designs.

response designs.

security design.

physical design.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Data is represented in the form of:

data trees.

tables.

data notes.

chairs.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A two-dimensional table of data sometimes is called a:

group.

set.

declaration.

relation.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

________ is a component of the relational data model included to specify business rules to maintain the integrity of data when they are manipulated.

Business rule constraint

Data integrity

Business integrity

Data structure

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An attribute (or attributes) that uniquely identifies each row in a relation is called a:

column.

foreign field.

primary key.

duplicate key.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An attribute in a relation of a database that serves as the primary key of another relation in the same database is called a:

link attribute.

link key.

foreign key.

foreign attribute.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A primary key whose value is unique across all relations is called a(n):

global primary key.

inter-table primary key.

enterprise key.

foreign global key.

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