This is the file /etc/named.boot from the computer named tellus with IP address 128.66.12.10.
directory/etc
secondarycompany.com128.66.12.company.com.hosts
secondary66.128.IN-ADDR.ARPA128.66.12.5128.66.rev
primary0.0.127.IN-ADDR.ARPAnamed.local
cachenamed.ca
From this file, you know that:
A.
tellus is the primary DNS server for domain company.com.
B.
There is a secondary DNS server for domain company.com at the IP address 128.66.12.5.
C.
tellus is a secondary DNS server for domain company.com and it downloads the domain data from the server at IP address 128.66.12.5.
D.
The server at IP address 128.66.12.5 is allowed to download domain and reverse lookup data From tellus.