You are asked to configure your system to save crash dump information. While choosing a
directory to save the dump data, you consider protecting a minimum amount of free space. What
is the default minimum free space in a crash dump directory?
A.
By default, the minimum free space is 10% of the size of the dump volume.
B.
By default, no minimum free space is set.
C.
By default, the minimum free space is 1 MB.
D.
By default, the space is determined by the amount of swap space.
E.
By default, the space is determined by the amount of memory installed in the system.
Explanation:
Dump Parameter: minimum free space
Minimum amount of free space required in the savecoredirectory after
saving crash dump files. If no minimum free space has been configured, the
default is one Mbyte.
The answer should be the B
root@solaris:/var/crash# dumpadm
Dump content : kernel with ZFS metadata
Dump device : /dev/zvol/dsk/rpool/dump (dedicated)
Savecore directory: /var/crash
Savecore enabled : yes
Save compressed : off
C is the correct
man dumpadm:
If the dumpadm -m option is used to create a minfree file
based on a percentage of the total size of the file system
containing the savecore directory, this value is not
automatically recomputed if the file system subsequently
changes size. In this case, the administrator must re-
execute dumpadm -m to recompute the minfree value. If no
such file exists in the savecore directory, savecore will
default to a free space threshold of one megabyte. If no
free space threshold is desired, a minfree file containing
size 0 can be created.
C
http://docs.oracle.com/cd/E19455-01/805-7229/6j6q8svht/index.html
minimum free space
Minimum amount of free space required in the savecore directory after saving crash dump files. If no minimum free space has been configured, the default is one megabyte.