Yes, those are totally needed for normal file operations....
I run CIFS and FTP on my FreeNAS.
CIFS allows Windows computers to access the created folder shares normally. You can adhoc connect from file explorer:
\\192.168.33.250
enter user credentials
Select folder and access/copy/delete files
or Map a drive
use above to initially access device, right click folder to map, select Map network drive and follow the prompts. ( I also suggest using the login as other and enter and save the actual NAS user credentials so the drive is persistent after reboot.
FTP - set the user on the NAS, use either command line or (I use) Filezilla as the client...