Which component is part of log indexing?

The correct answer encompasses the various components related to log indexing, which is a crucial aspect of efficiently managing and analyzing log data. Log indexing involves processing logs to make them searchable and analyzable, and it includes several functionalities.

Visualizations for log analytics allow users to better understand their log data through graphs, charts, and other visual tools. This makes it easier to spot trends, anomalies, and insights.

Querying and filtering logs is essential for sifting through large volumes of log data to find specific information. This capability enables users to run complex searches to retrieve relevant logs based on specific criteria, enhancing the overall usability of the log data.

Cost optimization for log retention ensures that the organization is managing the storage of its logs efficiently without incurring unnecessary costs. By optimizing which logs to retain and how long to keep them, organizations can balance the need for data retention with budget constraints.

Each of these components plays a critical role in the broader context of log indexing, which is why 'all of the above' is the correct choice.