What option can be purchased in 500GB increments that moves data to a Splunk-maintained archive?

The correct answer references the Splunk Managed Archive - Dynamic Data Active Archive, which is a service that allows organizations to purchase storage in increments of 500GB. This feature is particularly beneficial for users who want to effectively manage data retention by moving less frequently accessed data to a Splunk-maintained archive. This option enhances data management strategies by providing cost-effective storage solutions while ensuring that data remains accessible as needed.

In the context of the other choices, while there are various solutions for data management, they may not offer the same structured storage options or direct affiliation with Splunk's managed services. For instance, self-managed storage often requires more hands-on management and may not come with the same level of efficiency or integration that a Splunk-managed archive provides. Therefore, the option for the Splunk Managed Archive - Dynamic Data Active Archive stands out as it caters specifically to the needs for both storage capacity and operational efficiency, making it a preferred choice for those looking to scale their data archiving processes within the Splunk ecosystem.