Application/Container/Content move: Automatic Redirection HTTP Type and Expiration

Scenario:

• I've got two groups:
  1. "Resources" / [https://mycommunity.domain.local/resources/]
  2. "Thoughts" / [https://mycommunity.domain.local/thoughts/]
• Under the first group, I have a blog "Thoughts & Feelings" [https://mycommunity.domain.local/ resources /b/thoughts-feelings/]
• There's at least one post in that blog, "Summer Blues" [https://mycommunity.domain.local/resources /b/thoughts-feelings/posts/summer-blues]
• I move that entire "Thoughts & Feelings" blog from "Resources" to the "Thoughts" group.
• I know that automatic redirects will be put in place for the blog and any posts:
  1. Blog: [https://mycommunity.domain.local/resources/b/thoughts-feelings/] → [https://mycommunity.domain.local/thoughts/b/thoughts-feelings/]
  2. Post: [https://mycommunity.domain.local/resources/b/thoughts-feelings/posts/summer-blues] → [https://mycommunity.domain.local/thoughts/b/thoughts-feelings/posts/summer-blues]

Our SEO team is asking for some details on how this looks under the hood.

• What type of redirects (301, 302, etc.) are used for the redirection?
• How long do the redirections last (do they have an expiration)?
• If we don't like the answer to either of the above, is there a way (in platform) to override these settings?

Before I asked, I looked within the platform, but I'm not seeing anything in the Admin ⇒ Extensions ⇒ Core Functionality ⇒ Url Redirect on Application Move, Url Redirect on Container Move, or Url Redirect on Content Move

Thanks all!

P.S. We are in the process of upgrading from 11.1 to 12.1, so if there is a difference in the way these redirects are handled, I'd like to know both.