CM12 SCCMContentLib content, can be backed-up and re-used?

If your systems run under Configuration Manager 2012, you may fall into a question on SCCMContentLib like the following:

If you un-install a secondary site and re-install a Distribution Point on the same machine, can you use the SCCMContentLib from the secondary site for this new DP, without a new transfer of
the content to be required?

The answer is this: Yes, you can use the SCCMContentLib from the secondary site for the new deployment point, without a new transfer of the content.
You will have to Back up this folder, before uninstalling the secondary site – just to make sure you won’t lose it...