Oracle Oracle Certifications 1Z0-820 Questions & Answers

• Question 61:

  Which three options describe the purpose of the zonep2vchk command?

  A. Used on a Solaris 10 global zone to access the system for problems before migrating that system to a Solaris 10 branded zone.

  B. Used to access a Solaris 10 global zone for problems before migrating that zone to a Solaris 11 global zone

  C. Used to create zonecfg template for a Solaris 10 global zone that that will be migrated to a solaris10 branded zone.

  D. Used to migrate an Oracle Solaris 11 global zone to a non-global zone.

  E. Used to migrate a Solaris 10 global zone to a non-global zone on the same server; the non-global zone can then be migrated to a Solaris 11 server as a Solaris10 branded zone.

  Correct Answer: CDE

  Explanation: zonep2vchk

  -check a global zone's configuration for physical to virtual migration into non-global zone

  The zonep2vchk utility is used to evaluate a global zone's configuration before the process of physical-tovirtual (p2v) migration into a non-global zone. The p2v process involves archiving a global zone (source), and then installing a non-global zone (target) using that archive

  zonep2vchk serves two functions. First, it can be used to report issues on the source which might prevent a successful p2v migration. Second, it can output a template zonecfg, which can be used to assist in configuring the non-global zone target. zonep2vchk can be executed on a Solaris 10 or later global zone. To execute on Solaris 10, copy the zonep2vchkutility to the Solaris 10 source global zone.

  When run on Solaris 10, a target release of S11 can be specified, which will check for p2v into a Solaris 10 Branded zone.

  Reference: man zonep2vchk

• Question 62:

  When you issue the "gzip: zommand not found" message is displayed. You need to install the gzip utility on your system.

  Which command would you use to check if the gzip utility is available from the default publisher for installation?

  A. pkg info|grep gzip

  B. pkg list SUNWgzip

  C. pkg contents gzip

  D. pkg search gzip

  Correct Answer: D

  Explanation: Searching for Packages

  Use the pkg search command to search for packages whose data matches the specified pattern.

  Like the pkg contents command, the pkg search command examines the contents of packages. While the pkg contents command returns the contents, the pkg search command returns the names of packages that match the query.

  pkg search search [-HIaflpr] [-o attribute ...] [-s repo_uri] query Search for matches to the query, and display the results. Which tokens are indexed are action-dependent, but may include content hashes and pathnames.

  Note: pkg is the retrieval client for the image packaging system. With a valid configuration, pkg can be invoked to create locations for packages to be installed, called 'images', and install packages into those images. Packages are published by publishers, who may make their packages available at one or more repositories. pkg, then, retrieves packages from a publisher's repository and installs them into an image.

• Question 63:

  You execute the command:

  usermod -K limitpnv=all,\!file_wnte guest

  What is the result of this command?

  A. The guest account cannot write any files.

  B. The guest account can assume any role except the file_write role.

  C. Starting at next login, the guest account will be unable to write any files.

  D. The guest account cannot assume a role that includes file_write privileges.

  E. Unless the guest account assumes the limitpriv role, it cannot write any files

  F. An error message is displayed, indicating that "file_wnte" is not a valid execution attribute

  Correct Answer: C

• Question 64:

  Your server hangs intermittently and you believe it may be due to either faulty hardware or a driver. The support technician has told you to generate a live core dump of all memory pages for further analysis Your dump configuration is:

  Dump content: kernel pages

  Dump device: /dev/zvol/dsk/rpool/dump (dedicated)

  Savecore directory: /var/crash

  Savecore enabled: yes

  Save compressed: on

  You don't have enough space on the current dump device, so you need to store the dump on /dev/zvol/ dsk/pool2/dump

  Which option would you select to change the dump location for the next core dump and capture the content of all memory pages as requested by the support technician?

  A. dumpadm -d /dev/zvol/dsk/pool2/dump

  B. dumpadm -d /dev/zvol/dsk/pool2/dump -c all

  C. dumpadm -d /dev/zvol/dsk/pool2/dump -c curproc

  D. dumpadm -s /dev/zvol/dsk/pool2/dump -c all

  E. dumpadm -s /dev/zvol/dsk/pool2/dump

  Correct Answer: D

• Question 65:

  You are going to create live zones on you server. Disk space is critical on this server so you need to reduce the amount of disk space required for these zones. Much of the data required for each of these zones is identical, so you want to eliminate the duplicate copies of data and store only data that is unique to each zone.

  Which two options provide a solution for eliminating the duplicate copies of data that is common between all of these zones?

  A. Create the zones by using sparse root zones.

  B. Set the dedup property to on and the dedupratio to at least 1.5 for the zpool. Create a separate ZFS file system for each zone in the zpool.

  C. Put all of the zones in the same ZFS file system and set the dedupratio property for the ZFS file system to at least 1.5.

  D. Put all of the zones in the same ZFS file system and set the dedup property for the file system to on.

  E. Put each zone in a separate ZFS file system within the same zpool. Set the dedup property to on for each ZFS file system.

  Correct Answer: DE

  Explanation: n Oracle Solaris 11, you can use the deduplication (dedup) property to remove redundant data from your ZFS file systems. If a file system has the dedup property enabled, duplicate data blocks are removed synchronously. The result is that only unique data is stored, and common components are shared between files.

• Question 66:

  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.

  Correct Answer: C

  Explanation: 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 67:

  You need to set up an Oracle Solaris 11 host as an iSCSI target so that the host's disk can be accessed over a storage network. The disk device is c3t4d0.

  Which six options describe the steps that need to be taken on this host to enable an iSCSI target?

  A. Create a ZFS file system named iscsi/target.

  B. Create a zpool named iscsi with disk device c3t4d0

  C. Create zfs volume named iscsi/target.

  D. Use the stmfadm command to create a LUN using /dev/zvol/rdsk/iscsi/target.

  E. Use the stmfadm command to create a LUN using iscsi/target.

  F. Use the stmfadm command to make the LUN viewable.

  G. Use the stmfadm command to make the volume viewable.

  H. Enable the svc:/network/iscsi/target:default Service.

  I. Use the itadm command to create the iSCSI target.

  Correct Answer: BCDFHI

  Explanation: How to Create an iSCSI LUN

  The following steps are completed on the system that is providing the storage device.

  1.Create a ZFS storage pool.

  Example: target# zpool create sanpool mirror c2t3d0 c2t4d0 (C)2. Create a ZFS volume to be used as a

  SCSI LUN.

  (D)3. Create a LUN for the ZFS volume.

  Example:

  target# stmfadm create-lu /dev/zvol/rdsk/sanpool/vol1 Logical unit created:

  600144F0B5418B0000004DDAC7C10001

  4. Confirm that the LUN has been created.

  Example

  target# stmfadm list-lu

  LU Name: 600144F0B5418B0000004DDAC7C10001

  (F) 5. Add the LUN view.

  This command makes the LUN accessible to all systems.

  target# stmfadm add-view 600144F0B5418B0000004DDAC7C10001

  How to Create the iSCSI Target

  This procedure assumes that you are logged in to the local system will contains the iSCSI target.

  Note: The stmfadm command manages SCSI LUNs. Rather than setting a special iSCSI property on the

  ZFS volume, create the volume and use stmfadm to create the LUN.

  (H)

  1. Enable the iSCSI target service.

  target# svcadm enable -r svc:/network/iscsi/target:default

  (I)

  2. Create the iSCSI target.

  target# itadm create-target

  Reference: Oracle Solaris Administration: Devices and File Systems, Configuring iSCSI Devices With COMSTAR

• Question 68:

  Solaris 11 includes a redesigned software packaging model: the Image Packaging system.

  Which three describe advantages of the Image Packaging System over the previous Solaris 10 SVR4 packaging model?

  A. Eliminates patching of the software package

  B. Makes the patching process more efficient with less downtime

  C. Eliminates OS version upgrade

  D. Allows for the installation of the OS without a local DVD or installation server

  E. Allows the use of a repository mirror to speed up package operation

  F. Allows users to publish their own software package in a software repository

  Correct Answer: ADF

  Explanation: A: In contrast to the SVR4 packaging model used in earlier Oracle Solaris releases, IPS eliminates the need for patching.

• Question 69:

  You create a flash archive of the Solaris 10 global zone on the server named sysA. The archive name is s10--system flar, and it is stored on a remote server named backup_server.

  On sysA, you create a Solaris 10 branded zone named s10-zone.

  You want to use the flash archive, located on /net/backup_servers/10-system.flar, to install the operating system in the s10-zone zone.

  Which command do you choose to install the s10-system flar archive in the Solaris 10 branded zone (s10zone)?

  A. zoneadm -z slO-zone install -a /net/backup_server/slO-system.flar -u

  B. zonecfg -z slO-zone install -a /net/backup_server/s10-system.flar -u

  C. zoneadm -z s10-zone clone -s /net/backup_server/slO-system flar

  D. zonecfg -a s10-zone create -t SUNWsolanslO \ < /net/backup_server/s10-system.flar

  E. zonecfg-zs10-zoneinstall-f/net/backup_server/slO-system.flar

  Correct Answer: A

• Question 70:

  The current ZFS configuration on serverA is: Pool1 c3t2d0 c3t3d0 Pool2 c3t4d0 c3t5d0 The ZFS configuration on serverB is:

  Pool1 mirror-0 c3t2d0 c3t3d0 mirror-1 c3t4d0 c3t5d0 You need to change serverA's ZFS configuration to match serverB's configuration. Which option should you choose to modify the configuration on serverA so that it matches serverB's

  configuration?

  A. zpool destroy pool2 zpool attach pool1 c3t4d0 ct3t5d0

  B. zpool destroy pool2 zpool attach pool1 c3t2d0 c3t2d0 c3t4d0 c3t5d

  C. zpool destroy pool2 zpool add pool1 c3t4d0 c3t5d0

  D. zpool destroy pool2 zpool mirror pool1 pool2

  E. zpool destroy pool2 zpool attach pool1 c3t2d0 c3t4d0 zpool attach pool1 c3t3d0 c3t5d0

  F. zpool destroy pool1 zpool destroy pool2 zpool create pool1 mirror c3t2d0 c3t3d0 c3t4d0 c3t5d0

  Correct Answer: F

  Explanation: We destroy both pools. Then we recreate the mirror.

  Note: zpool attach [-f] pool device new_device Attaches new_device to an existing zpool device. The existing device cannot be part of a raidz configuration. If device is not currently part of a mirrored configuration, device automatically transforms into a two-way mirror of device and new_device. If device is part of a two-way mirror, attaching new_device creates a three-way mirror, and so on. In either case, new_device begins to resilver immediately. Reference: man zpool