When abort() is preferred over exit()?

Question

I know the differences between the two. One notable thing is that abort() sends SIGABRT signal, so it may be relevant when your software relies on them. But for

Answer 1

Sometimes your program breaks to such extent that its state becomes inconsistent and so exit() will not work because it would cause global objects destruction and the latter would not function properly when the state is inconsistent. In such situations abort() is to be preferred.