Exam 8: Advanced Data Handling Techniques

When a large data file needs to be processed in ascending or descending order based on a particular field, the most efficient approach is usually to store and access records based on their logical order.

Explain why you might want to use a two-dimensional array.

The sorting process is usually reserved for a relatively large number of data items.

You do not need to determine a record's exact physical address in order to use it.

You can make additional improvements to a bubble sort to reduce unnecessary comparisons.

In its simplest form, creating a(n) ____________________ list involves creating one extra field in every record of stored data.

When you ____ records, you store a list of key fields paired with the storage address for the corresponding data record.

Describe a two-dimensional array.

A two-dimensional array contains two dimensions: ____.

The most popular computer coding schemes include ASCII, Numeric, and EBCDIC.

Describe a bubble sort.