Exam SK0-005 topic 1 question 43 discussion

I think it's C

It defaulted to a loopback, and it's a Linux box. There is just 0 reason why someone would setup a DHCP to assign a loopback address, even with the unusual subnet mask. Even ChatGPT seems to agree, after I asked about the subnet mask, the loopback instead of apipa (which by the way is avahi on linux) and despite all that, seemed to think that C was the better answer. C makes more sense than someone having setup a DHCP server with that address and getting an incorrect subnet mask.

It's evident that the server's network interface eth0 is configured with the IP address 127.0.0.1, which is the loopback address. This address is reserved for communication within the local system and is not used for external network communication. Additionally, the subnet mask 255.255.0.0 is associated with this loopback address. Given this information, the most suitable explanation is: C. The server is configured to use DHCP on a network that does not have a DHCP server. The Server will not get an APIPA address because this is a Linux server

If the network does not have a DHCP server then the server should get APIPA that self-assigned address when the client fails to lease an address from a DHCP server.

I think provided answer (B) is correct The loopback interface should be assigned a netmask of 255.0.0.0, since 127.0.0.1 is a class A address. Ref: https://www.oreilly.com/library/view/linux-network-administrators/1565924002/ch05s07.html