Final answer:
The subject is Computers and Technology. The protocol allows hosts to perform name resolution without a DNS server, but it has security vulnerabilities and lacks authentication.
Step-by-step explanation:
The subject of this question is Computers and Technology. The question provides information about a protocol that allows IPv4 and IPv6 hosts to perform name resolution on the same local network without a DNS server. This protocol is loosely based on the DNS packet format and is supported by Windows and Linux hosts.
However, the protocol also has security vulnerabilities that can be exploited in a penetration test. For example, it lacks security controls such as authentication, which means that a malicious host on the network can advertise itself as any host it wants to.. It is implemented in both Windows and Linux operating systems. However, LLMNR has several security vulnerabilities since it lacks fundamental security controls like authentication. These vulnerabilities make it susceptible to attacks such as impersonation, where a malicious host can claim to be another host it is not.