Topic 1

Topic 1

University

79 Qs

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Topic 1

Topic 1

Assessment

Quiz

Science

University

Practice Problem

Easy

Created by

Vy Hạ

Used 14+ times

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79 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to a McKinsey Global Institute Report, in 2010 alone, global enterprises stored more than:

1 terabyte of data.

3 gigabytes of data.

at least 100 petabytes of data.

more than 7 billion exabytes of data.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Database management involves all of the following EXCEPT:

collecting data.

organizing data.

design web pages.

managing data.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A database is an organized collection of ________ related data.

logically

physically

loosely

badly

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Legacy systems often contain data of ________ quality and are generally hosted on ________.

poor; personal computers

excellent; mainframes

poor; mainframes

excellent; workgroup computers

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Program-data dependence is caused by:

file descriptions being stored in each database application.

data descriptions being stored on a server.

data descriptions being written into programming code.

data cohabiting with programs.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Because applications are often developed independently in file processing systems:

the data is always non-redundant.

unplanned duplicate data files are the rule rather than the exception.

data can always be shared with others.

there is a large volume of file I/O.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Relational databases establish the relationships between entities by means of common fields included in a file called a(n):

entity.

relationship.

relation.

association.

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