dns.sharperstudent.com has no NS records.
NS records for this zone are defined at sharperstudent.com.
NS records for this zone are defined at sharperstudent.com.
Question and response
Question
dig dns.sharperstudent.com. NS
Answer
The response has no answer records.
Authority
sharperstudent.com. 3600 SOA dns.sharperstudent.com. hostmaster.sharperstudent.com. 1372687184 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0