B.

/etc/svc/volatile

B.

 It contains all of the package metadata.

C.

zone2 and zone3 will need a dedicated etherstub.

Explanation:
Note:
* In Oracle Solaris 11, etherstubs and VNICs are the basic components of network
virtualization.
* The VNIC connects the virtual network to the external network. The VNIC also enables
the zones to communicate with one another through the virtual switch that is automatically
created with the VNIC. For a virtual network to host traffic internally between zones and
with the external LAN and the Internet, each zone must have its own interface. Therefore,
you must repeat this procedure as many times as the number of zones that will belong to
the virtual network.
* Create the etherstub.
# dladm create-etherstub etherstub
Perform this step only if you are creating a private virtual network which you want to restrict
from being accessed by external systems.

B.

 A link with an existing IP interface cannot be added to an aggregation.

C.

The switch must support the Link Aggregation Control Protocol (LACP).

Explanation: An interface that has been created cannot become a member of an
aggregation.

A.

The interface is plumbed.

C.

The netmask value is ffffffc0.

D.

 Issue the svccfg revert command.

Explanation: svccfg
subcommand: revert [snapshot]
Reverts the administrative customizations of the currently selected instance and its service
to those recorded in the named snapshot. If no argument is given, use the currently
selected snapshot and deselect it on success.

Incorrect:
Not A: Rollback to as-delivered system: svccfg delcust
svccfg
subcommand: delcust [-M] [pattern]
Delete any administrative customizations for the current selection. If an argument is
supplied, it is taken as a glob pattern and only property groups and properties with names
that match the argument are deleted.
Not B: There is no command revetsnap
Not C: Run the command /lib/svc/bin/restore_repository, and follow its instructions to
restore one of the automatic backup copies of the repository. Upon successful completion,
the system or local zone will be rebooted, and the restored repository will take effect.
Not D:

C.

  after the commit command

Explanation:
* The netcfg command manipulates system network configuration profiles. The netcfg
command can be invoked interactively, with an individual subcommand, or by specifying a
command file that contains a series of subcommands.
* subcommand: netcfg commit
Commits the current profile specification to persistent storage. A configuration must be
correct to be committed. Therefore, this operation automatically performs a verify operation
on the profile or object as well. The commit operation is attempted automatically upon
exiting the current scope by using either the end or exit subcommand.
Note:

* from the netadm list output we see the line
ncp Automatic disabled
* Oracle Solaris 11 uses profile-based network configuration, which is comprised of two
network configuration modes: manual (fixed) and automatic (reactive). Depending on which
network configuration mode you choose during an installation, either the DefaultFixed
network configuration profile (NCP) or the Automatic NCP is activated on the system. If the
DefaultFixed NCP is active, the network is manually configured by using the dladm and
ipadm commands . If the Automatic NCP or a user-defined NCP that you previously
created is active, the netcfg and netadm commands (formerly nwamcfg and nwamadm) are
used to create and manage network configuration.

A.

/etc/user_attr

C.

 /etc/security/prof_attr

Explanation: Rights profiles – The user_attr, prof_attr, and exec_attr databases are now
read-only. These local files databases are assembled from fragments that are located in
/etc/user_attr.d, /etc/security/prof_attr.d, and /etc/security/exec_attr.d.
The fragment files are not merged into a single version of the file, but left as fragments.
This change enables packages to deliver complete or partial RBAC profiles. Entries that
are added to the local files repository with the useradd and profiles commands are added
to the local-entries file in the fragment directory.