zfs snapshot [-r] [-o property=value] ... filesystem@snapname|volume@snapname
Creates a snapshot with the given name. All previous modifications by successful system calls to
the file system are part of the snapshot
zfs clone [-p] [-o property=value] ... snapshot filesystem|volume
Creates a clone of the given snapshot.
Note:
Because snapshots are fast and low overhead, they can be used extensively without great
concern for system performance or disk use .
With ZFS you can not only create snapshot but create a clone of a snapshot.
A clone is a writable volume or file system whose initial contents are the same as the dataset from
which it was created. As with snapshots, creating a clone is nearly instantaneous, and initially
consumes no additional disk space. In addition, you can snapshot a clone.
A clone is a writable volume or file system whose initial contents are the same as the original
dataset. As with snapshots, creating a clone is nearly instantaneous, and initially consumes no
additional space.
Clones can only be created from a snapshot. When a snapshot is cloned, it creates an implicit
dependency between the parent and child.
Reference: man zfs

Explanation/Reference:
Explanation:
A (not H): You can use your existing storage pools as long as they are upgraded. You have the flexibility of encrypting specific file systems.
B(not E): Can I enable encryption on an existing pool?
Yes, the pool must be upgraded to pool version 30 to allow encrypted ZFS file systems and volumes.
C(not D): ZFS encryption is integrated with the ZFS command set. Like other ZFS operations, encryption operations such as key changes and rekey are performed online.
F (not G): Encryption is the process in which data is encoded for privacy and a key is needed by the data owner to access the encoded data. You can set an encryption policy when a ZFS dataset is created, but the policy cannot be changed.

The dispadmin command displays or changes process scheduler parameters while the system is running.
-c class
Specifies the class whose parameters are to be displayed or changed. Valid class values
are: RT for the real-time class,TS for the time-sharing class,IA for the inter-active
class,FSS for the fair-share class,and FX for the fixed-priority class. The time-sharing and
inter-active classes share the same scheduler,so changes to the scheduling parameters of
one will change those of the other.
-g
Gets the parameters for the specified class and writes them to the standard output.

Explanation/Reference:
Explanation:
According to the exhibit the interface already exists.
The command ipadm create-ip net3 is supposed to create a new interface net3.

From the output exhibit we can deduce that the shell has id 15156.
It has spawned three subprocesses:
grep: id 15166
ps -aef 15165
The remaining 15163 must be the subshell (see note below).
This is the id of the process which should be terminated.