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Question 1

What best describes a relational database?

Revolt · Accepted Answer

a database containing tables that are connected by common fields

Question 2

What is the primary difference between relational databases and flat files?

Revolt · Accepted Answer

the number of tables

Question 3

Which statements describe disadvantages of using flat files? Check all that apply.

Revolt · Accepted Answer

It is easy to make errors when updating data.; Updating data can be time-consuming.; There is a tendency for duplicate information.

Question 4

What are advantages of using a relational database instead of a flat file? Check all that apply.

Revolt · Accepted Answer

reports generated from specific fields; data easier to sort, filter, and summarize; easier to draw comparisons from data; reduced likelihood of storing duplicate data

Question 5

Suppose you are working on a flat file with information about the United States. Each row represents a different state. There are 35 columns for different facts, such as Total Population and Capital City. What are good arguments for using a relational database instead of a flat file? Check all that apply.

Revolt · Accepted Answer

easier to locate data about each state; easier to prevent duplicate city/state data; easier to analyze large amounts of population data

Question 6

What are examples of data duplication in flat files? Check all that apply.

Revolt · Accepted Answer

a table with three records for student ID # 459100388; a multiple-choice question with two identical answers

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