Oracle 1Z0-820 Online Practice Questions and Exam Preparation

Oracle 1Z0-820 Online Questions & Answers

• Question 101:

  Your mentor suggests using the dladm rename-link command to rename the network datalinks. What are the two advantages of following this advice?

  A. It can clarify which network interface has what purpose.
  B. It can simplify specifying the network interface with the dladm modify-aggr command.
  C. It can simplify specifying the network interface with the dladm modify-bridge command.
  D. It can simplify IP filter rule changes if the network interface is replaced with a different type.
  E. It can prevent accidental deletion of the network interface with the dladm delete-phys command.
  F. It can prevent accidental deletion of the network interface configuration with the ipadm delete-addr command.
  A. It can clarify which network interface has what purpose.
  E. It can prevent accidental deletion of the network interface with the dladm delete-phys command.

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  A: To rename the bge0 link to mgmt0, enter the following command: # dladm rename-link bge0 mgmt0

  E: Consider that the bge0 device, whose link was named mgmt0 as shown in the previous example, needs to be replaced with a ce0 device because of a hardware failure. The bge0 NIC is physically removed, and replaced with a new ce0 NIC. To associate the newly added ce0 device with the mgmt0 configuration previously associated with bge0, enter the following command: # dladm rename-link ce0 mgmt0

  Note: How to Rename a Datalink Use this procedure if you want to change a datalink name to a customized name. For example, some of the datalinks in upgraded system might have retained legacy hardware- based names and you want to change these names to generic ones.

  Note: dladm rename-link [-R root-dir] link new-link

  Rename link to new-link. This is used to give a link a meaningful name, or to associate existing link configuration such as link properties of a removed device with a new device.

• Question 102:

  View the Exhibit and review the file system configuration.

  

  Identify the correct procedure to create a file system with the same properties as the file system displayed in the exhibit

  A. zfs create -o mountpoint=/data2, compression=on pool1/data2
  B. zfs create -o mountpoint=/data2 -o compression=on pool1/data2
  C. zfs clone -o mountpoint=/data2, compression=on pool1/data@now pool1/data2
  D. zfs clone -o mountpoint=/data2 -o compression=on pool1/data@now pool1/data2
  E. zfs create -o mountpoint=/data2 -o compression=on pool1/data@now pool1/data2
  E. zfs create -o mountpoint=/data2 -o compression=on pool1/data@now pool1/data2

• Question 103:

  Review the ZFS dataset output that is displayed on your system:

  

  Which four correctly describe the output?

  A. /data/file4 has been added.
  B. The link /data/file3 has been added.
  C. /data/file3 has been renamed to /data/file13.
  D. /data/file4 has been modified and is now larger.
  E. /data/file1 has been deleted.
  F. /data/file1 has been modified and is now smaller.
  G. /data/file5 has been modified.
  H. /data/file3 (a link) has been removed.
  A. /data/file4 has been added.
  C. /data/file3 has been renamed to /data/file13.
  E. /data/file1 has been deleted.
  G. /data/file5 has been modified.

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  A: + Indicates the file/directory was added in the later dataset

  C: R Indicates the file/directory was renamed in the later dataset

  E: - Indicates the file/directory was removed in the later dataset

  G: M Indicates the file/directory was modified in the later dataset

  Note: Identifying ZFS Snapshot Differences (zfs diff) You can determine ZFS snapshot differences by using the zfs diff command.

  The following table summarizes the file or directory changes that are identified by the zfs diff command.

  File or Directory Change Identifier

  *

  File or directory is modified or file or directory link changed M

  *

  File or directory is present in the older snapshot but not in the newer snapshot -

  *

  File or directory is present in the newer snapshot but not in the older snapshot +

  *

  File or directory is renamed R

• Question 104:

  Identify the correctly matching pair of equivalent functionality of JumpStart and Automated installer (AI).

  A. JumpStart: begin script AI: package repository
  B. JumpStart: setup_server AI: installadm create-service
  C. JumpStart: add_Install_client AI: SMF system configuration profile files
  D. JumpStart: finish scripts and sysidsfg files AI: manifest files
  B. JumpStart: setup_server AI: installadm create-service

  ---

  JumpStart: Use the setup_install_server(1M) command. AI: Use the installadm create-service command.

  Reference: Transitioning From Oracle Solaris 10 JumpStart to Oracle Solaris 11 Automated Installer, Similarities and Differences Between JumpStart and AI

• Question 105:

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

  PUBLISHERTYPESTATUSURI

  Solaris origin onlinehttp://pkg.oracle.com/solaris/release

  The update is available on the updated publisher:

  PUBLISHERTYPESTATUSURI

  Solaris originonlinehttp://sysA.example.com

  Select the option that describes the procedure used to update the OS image on the 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 svcfg - s command so that the Solaris publisher is connected to the repository at http://sysA.example.com Refresh the application/pkg/server service. Issue the pkgrepo refresh command to repository catalog
  C. Use the pkg set-publisher command to change the URL of the publisher Solaris to http://sysA.example.com. Issue the pkg update command to update the OS image.
  D. Add the new publisher http://sysA.example.com Solaris Use the pkg set-publisher command to set the publisher search order and place http://sysA.example.com 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 to change the URL of the publisher Solaris to http://sysA.example.com. Issue the pkg update command to update the OS image.

  ---

  You can use the pkg set-publisher command to change a publisher URI.

  Changing a Publisher Origin URI

  To change the origin URI for a publisher, add the new URI and remove the old URI. Use the -g option to add a new origin URI. Use the -G option to remove the old origin URI.

  # pkg set-publisher -g http://pkg.example.com/support \ -G http://pkg.example.com/release example.com

  Note: You can use either the install or update subcommand to update a package. The install subcommand installs the package if the package is not already installed in the image. If you want to be sure to update only packages that are already installed, and not install any new packages, then use the update subcommand.

  Reference: Oracle Solaris 11 Express Image Packaging System Guide, Managing Package Publishers

• Question 106:

  I he Automated Installer is used, rather than JumpStart, to install the Oracle Solans 11 operating System. Identify the two correctly matching pairs of equivalent functionality.

  A. AJ: manifest files JumpStart: begin script
  B. Al:installadmcreate-client JumpStart: setup_install_sen/er
  C. Al SMF system configuration profile files JumpStart: profile files
  D. Al: SMF system configuration profile files JumpStart: finish scripts and sysidcfg files
  A. AJ: manifest files JumpStart: begin script

• Question 107:

  Which three installation options allow for a "hands-free" and "unattended" installation of the Oracle Solaris 11 environment?

  (Choose three.)

  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

• Question 108:

  You upgraded your server to Oracle bolans 11 and you imported a zpool(pooll) that was created in bolaris 10. You need to create an encrypted ZFS file system in pooll, 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 Solaris 11. To encrypt a ZFS file system from a previous version of Solaris, upgrade the zpool and create a new encrypted ZFS file system in that zpool Finally, move or copy the data from the existing ZFS file system into the new 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, minimum.
  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 zpool must be upgraded to ZFS version 21, minimum. D f Encryption is supported at the pool or dataset (file system) level
  E. Encryption is supported at the pool level only and every file system in the pool will be encrypted.
  F. Encryption is supported at the pool level only and every file system in the pool will be encrypted.
  G. You cannot create an encrypted file system in a zpool that was created prior to Oracle Solaris 11. Create a new zpool in Solaris 11, 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 Solaris 11. To encrypt a ZFS file system from a previous version of Solaris, upgrade the zpool and create a new encrypted ZFS file system in that zpool Finally, move or copy the data from the existing ZFS file system into the new 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, minimum.
  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 level only and every file system in the pool will be encrypted.

• Question 109:

  you are 10 create a l\-z> me system witn ine roiiowing specmcaiions: Izjb compression enabled cannot consume more than 2 GB from the storage pool redundant data at the block level eliminated mounted as /data Which command creates the desired file system?

  A. zfs create -o mountpoint=/data,compression=on,algorithm=lzjb,deduplication=on,quota=2g/pool1/data
  B. zfs create -o mountpomt=/data compression=on algonthm=lzjb deduphcation=on quota=2g pool!/data
  C. zfs create -o mountpoint=/data -o compression=on -o dedup=on -o quota=2g pooll/data
  D. zfs create -o mountpomt=/data -o compression=on -o algorithm=lzjb -o deduplication=on -o quota=2g pool 1/data
  E. zfs create pool 1 /data zfs set mountpoint=/data,quota=2g.dedup=on,compression=on /pooM/data
  C. zfs create -o mountpoint=/data -o compression=on -o dedup=on -o quota=2g pooll/data

• Question 110:

  You are going to use the- Automated installer (AI) to install a non global zone named zone1. You have created a custom manifest for the non-global zone and named it zone1manifest Which command will you use to add this custom manifest to the s11-sparc install service and associate this custom manifest with the non-global zone?

  A. installadm create-profile -n s11-sparc -f /tmp/zone1manifest.xml - c
  B. installadm create-manifest -n s11-sparc -f /tmp/zone1manifest.xml -m
  C. installadm create-client -n s11-sparc -f /tmp/zone1manifest.xml -m zone1manifest -c zonename= "zone1"
  D. installadm create-service - n s11-sparc -f /tmp/zone1manifest.xml -m zone1manifest - c zonename="zone1"
  B. installadm create-manifest -n s11-sparc -f /tmp/zone1manifest.xml -m

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  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). Reference: installadm