shell:$ nslookup -timeout=2 -retry=1 'docs.learn.ac.lk'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	docs.learn.ac.lk
Address: 192.248.3.206
Name:	docs.learn.ac.lk
Address: 2401:dd00:1:1::206