1Z0-820 Exam Dumps and Practice Questions

Etherstubs are pseudo ethernet NICs which are managed by the system administrator. You can create VNICs over etherstubs instead of over physical links. VNICs over an etherstub become independent of the physical NICs in the system. With etherstubs, you can construct a private virtual network that is isolated both from the other virtual networks in the system and from the external network. For example, you want to create a network environment whose access is limited only to your company developers than to the network at large. Etherstubs can be used to create such an environment.

Note: Oracle Solaris 11 introduces a new and powerful network stack architecture which includes:

* Networking virtualization with virtual network interface cards (VNICs) and virtual switching (etherstubs)

* Tight integration with zones

* Network resource management - efficient and easy to manage integrated quality of service (QoS) to enforce bandwidth limit on VNICs and traffic flows

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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.

A: ZFS encryption was introduced in ZFS Pool Version Number 30, Solaris Nevada b149.

Filesystem encryption since Solaris 11 Express

B: Deduplication was introduced in ZFS Pool Version Number 21, Solaris Nevada b128.

E: Booting From a ZFS Root File System

Both SPARC based and x86 based systems use the new style of booting with a boot archive, which is a file system image that contains the files required for booting. When a system is booted from a ZFS root file system, the path names of both the boot archive and the kernel file are resolved in the root file system that is selected for booting.

installadm add-manifest

Associates manifests with a specific install

service, thus making the manifests available on

the network, independently from creating a

service. When publishing a non-default manifest,

it is required to associate criteria either via

criteria entered on the command line (-c) or

via a criteria XML file (-C).

Incorrect answers:

C: installadm create-client

Accomplishes optional setup tasks for a specified

client, in order to provide custom client

settings that vary from the default settings used

by the installadm create-service command.

D: installadm create-service

Creates an install service.

The command provides the following functionality:

- Takes an AI ISO image (<srcimage>), unpacks it,

and sets up a net image in a target directory

(<targetdir>. The net image enables client

installations.

- Creates an install service and makes it

available on the network.