I see no real need for mystery or trepidation concerning a core file. That said, I must admit that most admin students seem to suffer in silence or bury themselves in their e-mail when I say that. But look, it’s really not a big deal to understand where they come from and why.
For a process to run on Solaris, it first has to be composed from a number of segments. The segments of any Solaris program will include the following items:
Its program code, also called its text
Data declared when the program was allocated