Explanation/Reference:
Explanation:
D: zoneadm halt command halts the specified zones. halt bypasses running the shutdown scripts inside the zone. It also removes run time resources of the zone.
E: Use: zlogin zone shutdown
to cleanly shutdown the zone by running the shutdown scripts.
Use this procedure to cleanly shut down a zone.
1. Become superuser, or assume the Primary Administrator role.
2. Log in to the zone to be shut down, for example, my-zone, and specify shutdown as the name of the utility and init 0 as the state global# zlogin my-zone shutdown -y -g0 -i 0

Explanation/Reference:
Explanation:
http://www.oracle.com/technetwork/server-storage/solaris11/overview/solaris-matrix-1549264.html

Explanation/Reference:
Explanation:
A subnetwork, or subnet, is a logically visible subdivision of an IP network. The practice of dividing a network into two or more networks is called subnetting.
The routing prefix of an address is written in a form identical to that of the address itself. This is called the network mask, or netmask, of the address. For example, a specification of the most-significant 18 bits of an IPv4 address, 11111111.11111111.11000000.00000000, is written as 255.255.192.0.

Decompress using savecore -f vmdump.0
savecore - save a crash dump of the operating system
-f dumpfile Attempt to save a crash dump from the specified file instead of from the system's current dump device. This option may be useful if the information stored on the dump device has been copied to an on-disk file by means of the dd(1M) command.

The user file-creation mode mask (umask) is use to determine the file permission for newly created files. It can be used to control the default file permission for new files. It is a four-digit octal number. You can setup umask in /etc/bashrc or /etc/profile file for all users. By default most Unix distro set
it to 0022 (022) or 0002 (002). In short,