Oracle 1Z0-820 Online Practice Questions and Exam Preparation

Oracle 1Z0-820 Online Questions & Answers

• Question 1:

  The COMSTAR framework provides support for the iSCSI protocol.

  Identify three true statements describing the COMSTAR framework. (Choose three.)

  A. One IP port can handle multiple iSCSI target devices.
  B. The disk volume provided by the server is referred to as the LUN and can be accessed by an iSCSI initiator.
  C. The disk volume provided by the server is referred to as the target.
  D. The iSCSI initiator is configured on the server. E The iSCSI initiator is configured on the client.
  A. One IP port can handle multiple iSCSI target devices.
  C. The disk volume provided by the server is referred to as the target.
  D. The iSCSI initiator is configured on the server. E The iSCSI initiator is configured on the client.

• Question 2:

  You are configuring NFS on a server. Select the two statements that are true.

  A. Resources listed in /etc/dfs/dfstab are automatically shared on boot up.
  B. A directory cannot be shared if a subdirectory below it is already shared.
  C. Renaming a share created with the zfs set share command is not supported.
  D. NFS and SMB protocols cannot be used simultaneously to share the same directory.
  A. Resources listed in /etc/dfs/dfstab are automatically shared on boot up.
  C. Renaming a share created with the zfs set share command is not supported.

  ---

  A: ZFS can automatically share file systems by setting the sharenfs property. Using this property, you do not have to modify the /etc/dfs/dfstab file when a new file system is shared. The sharenfs property is a comma-separated list of options to pass to the share command. The value on is an alias for the default share options, which provides read/write permissions to anyone. The value off indicates that the file system is not managed by ZFS and can be shared through traditional means, such as the /etc/dfs/dfstab file. All file systems whose sharenfs property is not off are shared during boot.

• Question 3:

  You need to update an OS image on a client. The pkg publisher command displays the wrong publisher with the wrong update:

  PUBLISHERTYPESTATUSURI

  solansohQinonlinehttp://DkQ.oracle.conVsolaris/release The update is available on this updated publisher:

  PUBLISHERTYPESTATUSURI

  solarisoriQJnonlinehttp://svsA.example.com

  Select the option that describes the procedure used to update the OS image on this system from the updated publisher.

  A. Copy the repository from the ISO image onto the local client. Configure the repository on the client by using the svccfg -s command so that the Solaris publisher is connected to the new repository Refresh the application/pkg/server service. Issue the pkgrepo refresh command to refresh the repository catalog
  B. Configure the publisher on the client using the svccfg -s command so that the solans publisher is connected to the repository at http://svsA.example.com. Refresh the application/pkg/server service. Issue the pkgrepo refresh command to refresh the repository catalog
  C. Use the pkg set-publisher command lo change the URL of the publisher solans to htto://svsA example.com. Issue the pkg update command to update the OS Image.
  D. Add the new publisher http://svsA.example.com Solaris. Use the pkg set-publisher command to set the publisher search order and place http://svsA example com ahead of http://pkg.oracle.com/solaris/release. Issue the pkg publisher command to view the publishers. Set the new publisher to sticky. Issue the pkg update command to update the OS image-
  C. Use the pkg set-publisher command lo change the URL of the publisher solans to htto://svsA example.com. Issue the pkg update command to update the OS Image.

• Question 4:

  You are setting up a local IPS package repository on your Oracle Solaris11 server:

  solaris.example.com.

  You want to point the existing local IPS publisher to the new local IPS repository located in /repo.

  These are the stops that you have followed:

  1.

  Download and rsync the contents of the Oracle Solaris11 repository ISO image to the /repo directory.

  2.

  Configure the repository server service properties. The svcprop command display, the IPS related properties:

  pkg/inst_root astring/repo

  pkg/readonly Boolean true

  The 1s command displays the contents of the /repo directory:

  #ls/repo

  Pkg5.repository publisher

  The svcs publisher command shows the svc: /application/pkg/server: default service is online.

  The pkg publisher command shows the svc: /application/pkg/server: default service is online.

  The pkg publisher command still displays:

  PUBLISHERTYPESTATUSURI

  solarisoriginonlinehttp://pkg.oracle.com/solaris/release/

  Which steps needs to be performed to set the local IPS publisher to the local IPS repository/repo?

  A. Issue the pkgrepo refresh -s command to refresh the repository.
  B. Restart the svc:/application/pkg/server:default service.
  C. pkg set-publisher command to set the new repository location.
  D. Issue the pkgrepo rebuild command to rebuild the repository.
  E. Issue the pkgrepo set command to set the new repository location.
  C. pkg set-publisher command to set the new repository location.

  ---

  Set the Publisher Origin To the File Repository URI To enable client systems to get packages from your local file repository, you need to reset the origin for the solaris publisher. Execute the following command on each client:

  Example: # pkg set-publisher -G '*' -M '*' -g /net/host1/export/repoSolaris11/ solaris Reference: Oracle Solaris 11 Information Library, Set the Publisher Origin To the File Repository URI

• Question 5:

  The current ZFS configuration on server is:

  

  You need to backup the /data file system while the file system is active.

  Select the option that creates a full backup of the /data file system and stores the backup on server in the pool named backup.

  A. Mount -F nfs system: /backup / mnt zfs snapshot pool/data@monday>/mnt/Monday
  B. Mount -F nfs systemB: /backup/mnt zfs snapshot pool1/data@Monday zfs clone pool1/data@monday/mnt/Monday
  C. Zfs send pool1/data@Monday | ssh system zfs recv backup/monday
  D. Zfs snapshot pool1/data@Monday | ssh system zfs recv backup/monday
  D. Zfs snapshot pool1/data@Monday | ssh system zfs recv backup/monday

  ---

  Example (assuming there exists a snapshot `tank/test@1).

  Full backup

  Now let's do a full initial backup from the `tank/test@1 snapshot:

  # zfs send tank/test@1 | zfs receive tank/testback

• Question 6:

  How should you permanently restrict the non-global zone testzone so that it does not use more than 20 CPU shares while it is running?

  A. While configuring the zone, add this entry: add rct1 set name = capped.cpu-shares add value (priv = privileged, limit = 20, action = none) end exit
  B. While configuring the zone, add this entry: add rct1 set name= zone.cpu-shares add value (priv=privileged, limit=20, action=none) end exit from command line, enter: # dispadmin - d FSS
  C. From the command line enter: #prct1 -n zone.cpu-shares - r - v 20 - i zone testzone
  D. From the command line, enter: #prct1 - n zone.cpu-shares - v 80 - r - i zone global
  C. From the command line enter: #prct1 -n zone.cpu-shares - r - v 20 - i zone testzone

  ---

  The prctl utility allows the examination and modification of the resource controls associated with an active process, task, or project on the system. It allows access to the basic and privileged limits and the current usage on the specified entity.

  How to Change the zone.cpu-shares Value in a Zone Dynamically This procedure can be used in the global zone or in a non-global zone.

  Be superuser, or have equivalent authorizations.

  For more information about roles, see Configuring and Using RBAC (Task Map) in System Administration Guide: Security Services.

  Use the prctl command to specify a new value for cpu-shares. # prctl -n zone.cpu-shares -r -v value -i zone zonename idtype is either the zonename or the zoneid. value is the new value.

  Note: project.cpu-shares

  Number of CPU shares granted to a project for use with the fair share scheduler

  Reference: man prtcl

• Question 7:

  You upgraded your server to Oracle Solaris 11 and you imported zpool (pool1) that was created in Solaris 10. You need to create an encrypted ZFS file system in pool1, but first you need to make sure that your server supports ZFS encryption.

  Which four statements are true for support of ZFS encryption?

  A. The encrypted file system must have been created in Oracle Solaris11. To encrypt a ZFS file system from a previous version of Solaris, upgrade the zpool and create a new encrypted ZFS file system into the encrypted ZFS file system.
  B. If you plan to create an encrypted file system in an existing zpool, the zpool must be upgraded to ZFS version 30.
  C. ZFS encryption is integrated with the ZFS command set and no additional packages need to be installed.
  D. ZFS encryption requires that the ZFS Dataset Encryption package be installed.
  E. If you plan to create an encrypted file system in an existing zpool, the pool must be upgraded to ZFS version 21, minimum.
  F. Encryption is supported at the pool or dataset (file system) level.
  G. Encryption is supported at the pool level only for every file system in the pool will be encrypted.
  H. You cannot create an encrypted file system in a zpool that was created prior to oracle Solaris11. Create a new zpool in Solaris11, create an encrypted ZFS file system in the new zpool, and move or copy the data from the existing file system into the new encrypted file system.
  A. The encrypted file system must have been created in Oracle Solaris11. To encrypt a ZFS file system from a previous version of Solaris, upgrade the zpool and create a new encrypted ZFS file system into the encrypted ZFS file system.
  B. If you plan to create an encrypted file system in an existing zpool, the zpool must be upgraded to ZFS version 30.
  C. ZFS encryption is integrated with the ZFS command set and no additional packages need to be installed.
  F. Encryption is supported at the pool or dataset (file system) level.

  ---

  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.

  Reference: Oracle Solaris ZFS Administration Guide, Encrypting ZFS File Systems

• Question 8:

  You are asked to troubleshoot networking issues on an unfamiliar system.

  Select the correct command to display what network devices are installed.

  A. ifconfig -a
  B. dladm show-dev
  C. dladm show-phys
  D. dladm show-ether
  E. netadm show-dev
  F. netadm show-ether
  B. dladm show-dev

  ---

  dladm show-dev

  Shows information for all devices or the specified device.

  Reference: man dladm

• Question 9:

  You are setting up an automated installer (AI) install server and issue the following command:

  installadm create-service -n prod_ai -s /repo/prod_ai.iso \

  -i 192.168.1.100 -c 5 -d /export/repo

  Which four options describe the install server that you have configured?

  A. The service name is prod_ai.
  B. DHCP base IP address is 192.168.1.100
  C. The initial IP address for the install clients will be 192.168.1.100. This IP address is temporary. After the client is booted, it will use IP addresses in the following range: 192.168.1.101-105.
  D. Five IP addresses are allocated for DHCP clients, starting with 192.168.1.100.
  E. The Install server will support up to five clients.
  F. The AI net image ISO file is located in /repo/prod and the net image ISO will be unpacked in /export/repo.
  G. The AI net image ISO file is located in /repo/repo and is named /repo/prod/_ai.iso.
  A. The service name is prod_ai.
  B. DHCP base IP address is 192.168.1.100
  D. Five IP addresses are allocated for DHCP clients, starting with 192.168.1.100.
  F. The AI net image ISO file is located in /repo/prod and the net image ISO will be unpacked in /export/repo.

  ---

  A: -n

  Uses this install service name instead of default

  service name.

  B: -i

  Sets up a new DHCP server. The IP addresses,

  starting from dhcp_address_start, are set up.

  D: -c

  Sets up a total number of IP addresses in the

  DHCP table equal to the value of the

  count_of_ipaddr. The first IP address is the

  value of dhcp_ip_start that is provided by the

  -i option.

  F: -s

  Specifies location of AI ISO image to use for

  setting up the install service.

  Required: Specifies location to set up net image.

  Reference: man installadm

• Question 10:

  Which three Installation option allow for a "hands free" and "unattended'" Installation of the Solaris 11 environment?

  A. Jumpstart
  B. LiveCD
  C. A text Installation over the network
  D. An Automated Installation performed on an x86 client
  E. An Automated Installation using media from a local DVD or USB drive
  F. An Automated Installation using a networked repository
  D. An Automated Installation performed on an x86 client
  E. An Automated Installation using media from a local DVD or USB drive
  F. An Automated Installation using a networked repository

  ---

  Oracle Solaris 11 uses Automated Installer (AI) for unattended installations.

  Unattended installations are possible by placing the contents of the AI Image media (or ISO image contents from a download) on an AI server.

  Reference: Differences between Oracle Solaris 10 and 11 for System Administrators http://www.oracle.com/technetwork/server-storage/solaris11/overview/solaris-matrix- 1549264.html