Hey guys, can anyone tell me how to update namesrvers in 000webhost ? i am begginer here, and i am also not getting the answer in google also, please help 
You need to go to wherever you got the domain name from and update there. Look for DNS settings or nameserver settings and enter the 2 nameservers there.
If you do not own a domain (you can’t just make up a name) then choose or, I will choose your free subdomain (recommended)
where is that section ???!!!
Click create new in members area if you’re talking about the free sub domain.
Parked domain means parking a domain name that you own, not adding a nameserver.
This conversation might also be able to help you out. Steps look quick to me. 
ok now, when i am going to Parked Domain, what should i enter there ? “ns01.000webhost.com” or the IP of the nameserver ?
Neither, you put the name of your domain.
Hello,
The nameservers just have to configure only if you are using **your own domain **(domain you purchased / registered in another site and you want to use it with your 000webhost account).
000webhost is not a domain registrar. 000webhost lends you a subdomain for you to use with your account hosted on 000webhost.
You can also use your own domain with you account hosted on 000webhost.
Thank you/! i love you