Network Administrator Patricia is doing an audit of the network. Below are some of her findings
concerning DNS. Which of these would be a cause for alarm?
Select the best answer.
A.
There are two external DNS Servers for Internet domains. Both are AD integrated.
B.
All external DNS is done by an ISP.
C.
Internal AD Integrated DNS servers are using private DNS names that are
D.
unregistered.
E.
Private IP addresses are used on the internal network and are registered with the internal AD
integrated DNS server.
Explanation:
A)
There are two external DNS Servers for Internet domains. Both are AD integrated. This is the
correct answer. Having an AD integrated DNS external server is a serious cause for alarm. There
is no need for this and it causes vulnerability on the network.
B)
All external DNS is done by an ISP.
This is not the correct answer. This would not be a cause for alarm. This would actually reduce the
company’s network risk as it is offloaded onto the ISP.
C)
Internal AD Integrated DNS servers are using private DNS names that are unregistered. This is
not the correct answer. This would not be a cause for alarm. This would actually reduce the
company’s network risk.
D)
Private IP addresses are used on the internal network and are registered with the internal AD
integrated DNS server.
This is not the correct answer. This would not be a cause for alarm. This would actually reduce the
company’s network risk.