Oracle 1Z0-821 Online Practice Questions and Exam Preparation

Oracle 1Z0-821 Online Questions & Answers

• Question 121:

  You need to make sure that all of the software packages on your server are up to date. Without installing any updates, which two commands would display .my software updates that are available in the default Oracle repository?

  A. pkg list -u
  B. pkg verify -u `*'
  C. pkg search -u
  D. pkg info -r `*'
  E. pkg install -nv
  F. pkg update -nv `*'
  A. pkg list -u
  D. pkg info -r `*'

  ---

  A: the pgk list command display a list of packages in the current image, including state and other information. By default, package variants for a different architecture or zone type are excluded.

  D: pkginfo displays information about software packages that are installed on the system (with the first synopsis, with -l) or that reside on a particular device or directory (with the second synopsis, with -r).

  Without options, pkginfo lists the primary category, package instance, and the names of all completely installed and partially installed packages. It displays one line for each package selected.

  With -r, retrieve the data from the repositories of the image's configured publishers. Note that you must specify one or more package patterns in this case.

• Question 122:

  Identify three options that describe the new Oracle Solaris 11 zone features.

  A. There are boot environments for zones.
  B. Administrators can delegate common administration tasks by using RBAC.
  C. Oracle Solaris 11 supports Solaris 8, 9, and 10 branded zones.
  D. You can migrate a physical Solaris 10 system and its non-global zones to a solaris10 branded zone running on an Oracle Solaris 11 system.
  E. It is possible to change the host ID of a zone.
  A. There are boot environments for zones.
  B. Administrators can delegate common administration tasks by using RBAC.
  D. You can migrate a physical Solaris 10 system and its non-global zones to a solaris10 branded zone running on an Oracle Solaris 11 system.

  ---

  A: The beadm utility includes support for creating and administering non-global zone boot environments.

  Note: A boot environment is a bootable instance of the Oracle Solaris operating system image plus any other application software packages installed into that image. System administrators can maintain multiple boot environments on their

  systems, and each boot environment can have different software versions installed.

  B: Role-based access control (RBAC) is a security feature for controlling user access to tasks that would normally be restricted to the root role. By applying security attributes to processes and to users, RBAC can divide up superuser

  capabilities among several administrators.

• Question 123:

  You start to execute a program by using the following command:

  ~/bigscript and

  You then determine that the process is not behaving as expected, and decide that you need to terminate the process.

  Based on the information shown below, what is the process number you should terminate?

  

  A. 15163
  B. 15156
  C. 15166
  D. 15165
  A. 15163

  ---

  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.

• Question 124:

  You have Solaris 11 system with a host name of sysA and it uses LDAP as a naming service.

  You have created a flash archive of sysA and you want to migrate this system to an Oracle Solaris11 server, Solaris10 branded zone.

  The zone Status on the Oracle Solaris 11 server is:

  -

  zone10 incomplete/zone/zone1solaris10exc1

  Select the option that will force the non-global zone to prompt you for a host name and name service the first time it is booted.

  A. Use zonecfg to change the zonename before booting the system for the first time
  B. Use the - u option with the zoneadm - z zone10 attach command.
  C. Use the -u option with the zoneadn -z zone10 install command.
  D. Remove the sysidcfg file from the /root directory before booting the non- global zone.
  C. Use the -u option with the zoneadn -z zone10 install command.

  ---

  Oracle Solaris 10 branded zones -Oracle Solaris 10 Zones provide an Oracle Solaris 10 environment on Oracle Solaris 11. You can migrate an Oracle Solaris 10 system or zone to a solaris10 zone on an Oracle Solaris 11 system in the following ways:

  *

  Create a zone archive and use the archive to create an s10zone on the Oracle Solaris 11 system.

  This option applies in the current scenario.

  Example of command to Install the Oracle Solaris 10 non-global zone. s11sysB# zoneadm -z s10zone install -u -a /pond/s10archive/s10.flar

  *

  Detach the zone from the Oracle Solaris 10 system and attach the zone on the Oracle Solaris 11 zone. The zone is halted and detached from its current host. The zonepath is moved to the target host, where it is attached.

  Note:

  install [-x nodataset] [brand-specific options]

  A subcommand of the zoneadm.

  Install the specified zone on the system. This subcommand automatically attempts to verify first. It refuses to install if the verify step fails.

  -u uuid-match

  Unique identifier for a zone, as assigned by libuuid(3LIB). If this option is present and the argument is a non-empty string, then the zone matching the UUID is selected instead of the one named by the -z option, if such a zone is present.

• Question 125:

  View the exhibit.

  

  The configuration information in the exhibit is displayed on your system immediately after installing the OS. Choose the option that describes the selection made during the Installation of the OS to obtain this configuration.

  A. The automatic network configuration option was chosen during the installation of the OS.
  B. The manual network configuration option was chosen during the installation of the OS.
  C. The network was not configured during the installation of the OS.
  D. The DHCP network configuration option was chosen during the Installation of the OS.
  A. The automatic network configuration option was chosen during the installation of the OS.

  ---

  There are two ways to configure the network configuration: automatic or manual. In the exhibit we see that DHCP has been used used. This indicates an automatic network configuration.

• Question 126:

  You are the administrator of a system that a large number of developers work on. These developers crash the system, and their applications, on a regular basis. What command would you use to configure where the core files are saved?

  A. savecore
  B. dumpadm
  C. svcadm
  D. proc
  E. coreadm
  E. coreadm

  ---

  The coreadm command is used to specify the name and location of core files produced by abnormally-terminating processes.

• Question 127:

  You are attempting to edit your crontab file in the bash shell. Instead of getting your usual vi interface, you are presented with an unfamiliar interface. In order to have your editor of choice-vi- what command must you type after exiting the unfamiliar editor?

  A. EDITOR=vi
  B. crontab=vi
  C. crontab ?e vi
  D. env
  A. EDITOR=vi

  ---

  Set the EDITOR variable to vi.

  Commands like `crontab -e` will use ed per default. If you'd like to use some better editor (like vi) you can use the environment variable EDITOR:

  # EDITOR=vi; crontab -e will open the users crontab in vi. Of course you can set this variable permanently.

  Incorrect answers

  C: -e Edits a copy of the current user's crontab file, or creates an empty file to edit if crontab does not exist. When editing is complete, the file is installed as the user's crontab file. If a username is given, the specified user's crontab file is edited, rather than the current user's crontab file; this can only be done by a user with the solaris.jobs.admin authorization. The environment variable EDITOR determines which editor is invoked with the -e option. The default editor is ed(1). All crontab jobs should be submitted using crontab. Do not add jobs by just editing the crontab file, because cron is not aware of changes made this way.

• Question 128:

  This iron is displayed on the desktop of a laptop computer, which is running Oracle Solaris 11.

  

  Which two statements describe the Information conveyed by this Icon?

  A. NWAM is disabled.
  B. NWAM is automatically configuring the network.
  C. The wireless network card is manually configured and operational.
  D. The wireless network card is manually configured but not operational.
  E. The wireless network card is automatically configured and operational.
  F. The wireless network card is automatically configured but not operational.
  B. NWAM is automatically configuring the network.
  C. The wireless network card is manually configured and operational.

  ---

  B: The Network Status notification icon is only displayed on the desktop if you are using NWAM to automatically configure your network.

  C: All online (Wireless)

  Indicates all manually enabled connections in the enabled network profile are online and that the required number of connections in the enabled profile group (if such a group exists) are online. The required number is the same as those

  described for the All online (Wired) status.

  Note that at least one online connection is wireless.

• Question 129:

  On localSYS, your SPARC based server, you back up the root file system with recursive snapshots of the root pool. The snapshots are stored on a remote NTS file system.

  This information describes the remote system where the snapshots are stored:

  Remote system name: backupSYS

  File system whore the snapshots are stored: /backups/localSYS

  Mounted file system on localSYS: /rpool/snaps

  Most recent backup name: rpool-1202

  Disk c0t0d0 has failed in your root pool and has been replaced. The disk has already been part< and labeled and now you need to restore the root file system. Which procedure would you follow to restore the ZFS root file system on localSYS?

  A. boot cdrom -smount -f nfs backup_server:/rpool/snaps /rmtzpool create rpool c0t0d0s0cat /mnt/rpool.1202 | zfs receive -Fdu rpoolzpool set bootfs=rpool/ROOT/solaris rpoolRecreate swap and dump devices.Reinstall the bootblock on c0t0d0.
  B. boot cdrom -smount -f nfs backup_server:/rpool/snaps /mntzpool create rpool c0t0d0s0zfs create -o mountpoint=/ rpool/ROOTcat /mnt/rpool.1011 | zfs receive -Fdu rpoolzpool set bootfs=rpool/ROOT/solaris rpoolRecreate swap and dump devices.Reinstall the bootblock on c0t0d0.
  C. boot cdrom -smount -F nfs backup_server:/rpool/snaps /mntcat /mnt/rpool.1011 | zfs receive -Fdu rpoolzpool set bootfs=rpool/ROOT/solaris rpool c0t0d0s0Reinstall the bootblock on c0t0d0s0
  D. boot cdrom -smount -f nfs backup_server:/rpool/snaps /rmtzpool create rpool c0t0d0s0zfs receive -Fdu /mnt/rpool.1011zpool set bootfs=rpool/ROOT/solaris rpoolReinstall the bootblock on c0t0d0.
  A. boot cdrom -smount -f nfs backup_server:/rpool/snaps /rmtzpool create rpool c0t0d0s0cat /mnt/rpool.1202 | zfs receive -Fdu rpoolzpool set bootfs=rpool/ROOT/solaris rpoolRecreate swap and dump devices.Reinstall the bootblock on c0t0d0.

  ---

  How to Recreate a ZFS Root Pool and Restore Root Pool Snapshots In this scenario, assume the following conditions:

  *

  ZFS root pool cannot be recovered

  *

  ZFS root pool snapshots are stored on a remote system and are shared over NFS

  *

  The system is booted from an equivalent Solaris release to the root pool version so that the Solaris release and the pool version match. Otherwise, you will need to add the -o version=version-number property option and value when you recreate the root pool in step 4 below.

  All steps below are performed on the local system.

  1.

  Boot from CD/DVD or the network.

  On a SPARC based system, select one of the following boot methods:

  ok boot net -s ok boot cdrom -s If you don't use -s option, you'll need to exit the installation program.

  2.

  Mount the remote snapshot dataset.

  For example:

  # mount -F nfs remote-system:/rpool/snaps /mnt

  3.

  Recreate the root pool.

  For example:

  # zpool create -f -o failmode=continue -R /a -m legacy -o cachefile=/etc/zfs/zpool.cache rpool c1t0d0s0

  4.

  Restore the root pool snapshots.

  This step might take some time. For example:

  # cat /mnt/rpool.0311 | zfs receive -Fdu rpool

  Using the -u option means that the restored archive is not mounted when the zfs receive operation completes.

  5.

  Set the bootfs property on the root pool BE.

  For example:

  # zpool set bootfs=rpool/ROOT/osolBE rpool

  6.

  Install the boot blocks on the new disk.

  On a SPARC based system:

  # installboot -F zfs /usr/platform/`uname -i`/lib/fs/zfs/bootblk /dev/rdsk/c1t0d0s0

• Question 130:

  You attempted to reboot a system via the init command, however the system did not perform boot sequence into the Oracle Solaris Operating Environment. You are presented with a prompt from the OpenBoot PROM. Which command would you enter, to boot the system from the default device?

  A. boot -net install
  B. boot
  C. boot -default
  D. boot -s0
  B. boot

  ---

  Boot With this form, boot loads and executes the program specified by the default boot arguments from the default boot device

  Note: boot has the following general format: boot [device-specifier] [arguments] where device-specifier and arguments are optional.