JAVA/Sun Exam Questions

What would you need to do to get the system to store the system crash dumps in the /var/crash direct

Your server has been crashing intermittently for unknown reasons. You’ve been told to start saving the information from the crash in the /var/crash directory (c0t1d0s4) so that a technician can analyze the problem. Your crash dump configuration file has the following entries:
Dump content: all pages
Dump device: /dev/dsk/c0d0s1 (swap)
Savecore directory: /var/crash/
Savecore enabled: no
After the most recent crash, you went into the /var/crash directory to look for the dump file and the directory was empty.
What would you need to do to get the system to store the system crash dumps in the /var/crash directory?

A.
dumpadm -y

B.
coreadm -y

C.
dumpadm -s /dev/dsk/c0d0s4

D.
coreadm -p /dev/dsk/c0d0s4