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Exam 7: File Handling and Applications

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Question 21

Multiple Choice

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Characters are made up of smaller elements called ____.

A) fields
B) records
C) bits
D) bytes

E) C) and D)
F) B) and D)

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Question 22

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You update the transaction file with data from the master file.

A) True
B) False

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Question 23

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When businesses store data items on computer systems, they are often stored in a framework called the data ____________________ that describes the relationships between data components.

Match each term with a statement below.

A(n)____________________ is a small unit of storage that, for example, holds only one character in a simple text file.

To write a program that produces a report of employees by department number, the records must be grouped by department number before you begin processing.

Files in which records must be accessed immediately are sometimes called instant access files.

Match each term with a statement below.

When you ____ a file, it is no longer available to your application.

Explain the difference in how programmers use the words print , write , and display .

____ applications require that a record be accessed immediately while a client is waiting.

____ files involves combining two or more files while maintaining the sequential order of the records.

Describe what is required to merge more than two files.

The saved version of a master file is the ____ file; the updated version is the child file.

Match each term with a statement below.

How are the keyboard and monitor used in most programming languages?

You can easily merge files even if each file contains a different record layout.

A ____ is a copy that is kept in case values need to be restored to their original state.

Why might programmers use a control break program?

In most programming languages, before an application can use a data file, it must ____.