Sync AD to AD LDS

Hi all,

I'm trying to sync AD to AD LDS (Both is Windows server 2012 Std) and have 2 questions below

- Can we sync password from AD object to AD LDS? If yes, how can we test the password on AD LDS (just wanna check them)

- Adamsync is just setup on schedule to run? In case of large number of objects on AD, so I think the update is delta update. Is that right?

Appreciate anyone can help.