Answer: Bastion host
Explanation: Bastion host is type of computer which resist the attacks happening on a network particularly. It mostly works between the internet and interior network. It assures that the interior computer network remains undamaged due to any type of threat. It can also be considered that bastion host behave as the gateway between internal network and firewall as well.
A compiler is a series of programs that (usually) convert source code into machine language. There are also compilers that compile into byte code, Java for instance.
No compiler is responsible for executing a freshly compiled program. That would be done in an IDE (Integrated Development Environment).
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