Question

The ________ families of file organizations cover most of the file organizations we will have at our disposal as we design physical files and databases.

A) Two
B) Three
C) Four
D) Five

Answer 1

The answer is B) Three, consisting of sequential, direct or hashed, and indexed families of file organizations, each suitable for different data storage and access needs.

Step-by-step explanation:

The correct answer to the question is B) Three. There are three basic families of file organizations that are typically used when designing physical files and databases: sequential, direct (or hashed), and indexed. Each of these file organizations has its own set of advantages and disadvantages that make them suitable for different kinds of data storage and access needs.

For example, sequential file organization is efficient for batch processing where records are processed in a sorted order. Direct or hashed file organization allows quick access to records based on a hash value, useful for random access patterns. Lastly, indexed file organization provides a compromise between sequential and direct access, allowing for both reasonably fast random and sequential access through the use of indexes.