shell:$ nslookup -timeout=2 -retry=1 'africa.airtel.com'
;; communications error to 1.1.1.1#53: timed out
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	africa.airtel.com
Address: 45.60.75.92
Name:	africa.airtel.com
Address: 45.60.84.92