Which of the following is an example of structured data?

Structured data refers to data that is organized in a predefined manner, making it easily searchable and analyzable. This type of data resides in fixed fields within a record or file, typically in a format that can be easily managed by data management systems.

Data in relational databases serves as a prime example of structured data. These databases use a tabular format consisting of rows and columns, where each column represents a specific attribute of the data, and each row corresponds to a single record. This organization allows for efficient querying and analysis through structured query language (SQL), enabling data integrity and consistency.

In contrast, emails, social media posts, and multimedia files like images and videos do not exhibit the same level of organization. Emails and social media posts often contain unstructured or semi-structured data, including various formats like text, links, and images, making them less easily searchable and analyzable without substantial preprocessing. Images and videos, being largely unstructured, lack the organized fields that characterize structured data, making them difficult to search without specific metadata.

Thus, the clear organization of data in relational databases makes it the quintessential representation of structured data.