You run the following command:
ping host1
After a short time, you receive the following response:
no answer from host1
Which is a cause of this message?
A.
The interface on host1 is configured as down.
B.
Your local network interface is configured as down.
C.
Your IP address is not in the /etc/hosts file on host1.
D.
Your local system is unable to resolve the IP address for host1.