If an interviewer asks you about your process for deciding when content should be updated or replaced, they are likely trying to understand your approach to maintaining and optimizing content.  Here is an approach to this answer:  “There are a few factors that can influence the decision to update or replace content:  Accurate and up-to-date information: If the information in the content is outdated or inaccurate, it should be updated or replaced.  Search engine rankings: If the content is not performing well in search engine results, it may be necessary to update or replace it to improve its ranking.  Traffic and engagement: If the content is not generating the desired level of traffic or engagement, it may be necessary to update or replace it to improve its performance.  Alignment with business goals: If the content does not align with the current business goals or target audience, it may be necessary to update or replace it to be more effective.  I keep in mind these factors when deciding whether to update or replace content.”