Question 9Which of the following data sources are classified as structured data sources? Select all that apply.1 pointEnterprise Resource Planning (ERP) systemLog filesMessagesRelational databases

The structured data sources from the options provided are:

1. Enterprise Resource Planning (ERP) system
2. Relational databases

Explanation:

Structured data refers to any data that resides in a fixed field within a record or file. This includes data contained in relational databases and spreadsheets.

1. Enterprise Resource Planning (ERP) system: ERP systems are business process management software that allows an organization to use a system of integrated applications to manage the business and automate many back-office functions related to technology, services, and human resources. The data in ERP systems is structured because it is organized in a relational database.

2. Relational databases: A relational database is a type of database that stores and provides access to data points that are related to one another. Relational databases are based on the relational model, an intuitive, straightforward way of representing data in tables. In a relational database, each row in the table is a record with a unique ID called the key. The columns of the table hold attributes of the data, and each record usually has a value for each attribute, making it easy to establish the relationships among data points. Therefore, the data is structured.

Log files and messages are typically considered unstructured data because they don't reside in fixed fields or records. They may contain structured elements, but are not entirely structured themselves.