Default Question about bootloader (could be locked)

I'm about to receive my note 8 (Swappa) and it is the wifi version....I think its the 5100 model...the person said it is running kk.... does that mean the bootloader is locked?
I have the n2 and it wasn't locked ....I know some people got the n3 and w/o realizing when they took the update it locked their bootloader .....
I'm wondering if this one that I will get will have the bootloader is not coming rooted