Oracle Oracle Certifications 1Z0-821 Questions & Answers

• Question 191:

  Which two options are valid methods of installing a solaris10 branded zone on a system running Oracle Solaris 11?

  A. Use the V2V process to migrate an existing Solaris 8 or 9 non-global zone from a Solaris 10 system to a solaris10 branded zone.

  B. Use the V2V process to migrate an existing Solaris 10 non-global whole root zone from a Solaris 10 system to a solaris10 branded whole root zone.

  C. Install a solaris10 branded zone directly from the Oracle Solaris 10 media.

  D. Migrate an existing 64-bit Solaris 10 system to a solaris10 branded non-global zone using the P2V process.

  E. Use the V2V process to migrate an existing Solaris 10 non-global sparse root zone from a Solaris 10 system to a solaris10 branded sparse root zone.

  Correct Answer: BC

  B: How to Migrate an Existing native Non-Global Zone

  Use the V2V process to migrate an existing zone on your Solaris 10 system to a solaris10 brand zone on a system running the Oracle Solaris 11 release.

  C: How to Install the solaris10 Branded Zone

  A configured solaris10 branded zone is installed by using the zoneadm command with the install subcommand.

• Question 192:

  _________ serves as the interface between the SMF repository and the user to ensure that a consistent, picture of the repository is presented to the user.

  A. repository.db

  B. service manifest

  C. svc.startd

  D. svc.configd

  Correct Answer: D

  SVC.CONFIGD is the repository daemon responsible for maintaining /etc/svc/repository.db. The repository.db must come clean during this integrity check otherwise it is a "no go" for usual boot sequence to run level 3. The repository may get corrupted due to various hardware issues, software bugs, disk write failures, etc.

  Note: When svc.configd(1M), the Solaris Repository Daemon, is started, it does an integrity check of the smf(5) repository, stored in /etc/svc/repository.db. This integrity check can fail due to a disk failure, the database file being corrupted either due to a hardware bug, a software bug, or an accidental overwrite. If the integrity check fails, svc.configd will write a message to the console.

• Question 193:

  You need to install the gzip software package on your system. Which command would you use to find the software package in the configured repository?

  A. pkg search gzip

  B. pkg info gzip

  C. pkg contents gzip

  D. pkginfo gzip

  E. yum list gzip

  Correct Answer: A

  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.

• Question 194:

  You have edited /etc/profile to include the lines:

  dennis_says=hello

  export dennie_says

  You have also edited /etc/skel/local.profile to include the line:

  dennis_says=world

  You now create a new user account brian, and specify use of the bash shell. When brian logs in and enters

  Echo $dennis_says

  What will he see, and why?

  A. world, because the local.profile entry will be executed last

  B. hello, because the global /etc/profile entry overrides the local.profile entry

  C. hello, because the local.profile entry is not automatically sourced on login

  D. hello, because the value specified in local.profile was not exported

  E. nothing, because the variable was not exported in local.profile

  Correct Answer: A

  The $HOME/.profile file is an initialization file that is executed after the /etc/profile when logging in to the Bourne or Korn shell. The file contains user preferences for variable settings. If the ENV variable is set to .kshrc, the .kshrc file executes every time a new shell begins execution. The $HOME/.profile is copied from the /etc/skel/local.profile file by the Administration Tool when creating a new account.

  Note: /etc/skel/local.profile Per-system configuration file for sh/ksh/ksh93/bash login sessions, installed for new users

• Question 195:

  You want to deploy Oracle Solaris 11 with the Automated Installer (AI). You need to make sure that your server and network meet the requirements for using AI.

  Choose the three options that describe the requirements for using AI.

  A. You can create only one manifest per install service. If you need more than one manifest create multiple install services.

  B. If two client machines have different architectures and need to be installed with the same version of the Oracle Solaris 11 OS, then create two AI manifests and a single install service.

  C. You need a separate install service for each different client architecture that you plan to install, and for each different version of the Oracle Solaris 11 OS that you plan to install on client systems.

  D. If two client machines have different architectures and need to be installed with different versions of the Oracle Solaris 11 OS, then create two AI manifests and two install services.

  E. The install server needs to be able to access an Oracle Solaris Image Packaging System (IPS) software package repository; the clients do not.

  F. The install server can be either an x86 machine or a SPARC machine.

  Correct Answer: BEF

  B (not A, not D, Not C): If two client machines need to be installed with the same version of the Oracle Solaris 11 OS but need to be installed differently in other ways, then create two AI manifests for the AI install service. The different AI manifests can specify different packages to install or a different slice as the install target, for example. Note: An AI manifest provides installation instructions. The AI manifest specifies one or more IPS package repositories where the client retrieves the packages needed to complete the installation. The AI manifest also includes the names of additional packages to install and information such as target installation device and partition information.

  F: The install server can be either an x86 machine or a SPARC machine.

• Question 196:

  To confirm the IP address and netmask have been correctly configured on the network interfaces which command should you use?

  A. ipdilm show-if

  B. ipadm show-nic

  C. ipadm show-addr

  D. ipadm show-ifconfig

  E. ipadm show-addripadm show-mask

  Correct Answer: C

  Show address information, either for the given addrobj or all the address objects configured on the specified interface, including the address objects that are only in the persistent configuration.

  State can be: disabled, down, duplicate, inaccessible, ok, tentative

  Example: # ipadm show-addr ADDROBJ TYPE STATE ADDR lo0/v4 static ok 127.0.0.1/8 lo0/v6 static ok ::1/128

• Question 197:

  You need to migrate a UFS file system named /production_ufs to a ZFS file system named / production_ufs. The /production_ufs file system cannot be taken down or be out of production during the migration, and the current /production_ufs file system must remain active until the /ptoduction_zfs file system is copied and ready.

  Which method allows you to meet both requirements?

  1.

  Copy live data from /production_ufs to /production_zfs while /production_ufs is in use.

  2.

  When the copy is complete, /production_zfs will contain an up-to date copy of /production_ufs

  A. Create a snapshot of the UFS file system. Create the new ZFS file system. Use cpio to copy data from the snapshot to the new ZFS file system.

  B. Create a new Boot Environment. Create the ZFS file system. Use lucreate -m to copy data from the Current UFS file system to the new ZFS file system.

  C. Mirror the existing UFS file system by using SVM.After both submissions are in sync, migrate one of the submissions to a ZFS file System by using Live Upgrade.

  D. Create the new ZFS file system by using zfs create import to import data from the existing UFS file system into the new ZFS file system

  E. Create the new zfs file system by using the zfs create -o shadow.

  Correct Answer: E

  Migrating Data With ZFS Shadow Migration ZFS shadow migration is a tool you can use to migrate data from an existing file system to a new file system. A shadow file system is created that pulls data from the original source as necessary.

  You can use the shadow migration feature to migrate file systems as follows:

  *

  A local or remote ZFS file system to a target ZFS file system

  *

  A local or remote UFS file system to a target ZFS file system Shadow migration is a process that pulls the

  data to be migrated:

  *

  Create an empty ZFS file system.

  *

  Set the shadow property on an empty ZFS file system, which is the target (or shadow) file system, to

  point to the file system to be migrated.

  For example:

  # zfs create -o shadow=nfs://system/export/home/ufsdata users/home/shadow2

  *

  Data from file system to be migrated is copied over to the shadow file system.

• Question 198:

  How are operating system updates distributed in the Oracle Solaris 11 environment?

  A. Updates are only available to customers with an active support contract. The updates are distributed through the My Oracle Support web portal and installed in a central location. All software packages are then updated manually from the command line using the smpatch command.

  B. Patches are download from http: //support.oracle.com either automatically or manually. All software packages are then updated manually from the command line using the smpatch or patchadd commands.

  C. Software updates are published as packages to a repository. All software packages are then updated manually from the command line using the pkg command.

  D. Software updates, published as packages to an OS image. All software packages are then updated manually from the command line using the pkg command.

  Correct Answer: C

  *

  Updating all of the packages on your installed system ?To update all of the packages on your system that

  have available updates, use the pkg update command, as follows:

  # pkg update

  Running this command updates packages that you might not otherwise consider updating, for example,

  kernel components and other low-level system packages.

  *

  Adding or updating individual packages ?To add individual software packages, use the pkg install

  command. Any dependent packages are also updated at the same time.

  *

  install package updates that deliver fixes?A pkg update operation might include bug fixes, so the operation is similar to applying a specific patch or patches in previous Oracle Solaris releases.

  Note: The IPS interfaces first check for updates for currently installed packages before retrieving them via the network. By default, interfaces check repository catalogs in the following locations:

  *

  The default installation repository at pkg.oracle.com/solaris/release.

  *

  The support repository in My Oracle Support. This repository is restricted to users with Oracle Solaris 11 Express support contracts, and it contains packages with the latest bug fixes. For this reason, a support contract must be purchased for production deployments.

• Question 199:

  You are troubleshooting the failure of a computer to mount an NFS file system hosted by a server (hostname mars) in the local area network.

  Select the three commands that will enable you to identify the problem.

  A. ping - s mars

  B. cat /etc/vfstab

  C. cat /etc/dfs/dfstab

  D. sharemgr show -v

  E. showmount -e mars

  F. rpcinfo -s mars | egrep `nfs|mountd'

  Correct Answer: BEF

  B: The mount point Error. The following message appears during the boot process or in response toan

  explicit mount request and indicates a non-existent mount point.

  Mount: mount-point /DS9 does not exist.

  To solve the mount point error condition, check that the mount point exists on the client. Check the spelling

  of the mount point on the command line or in the /etc/vfstab file (B) on the client, or comment outthe entry

  and reboot the system.

  Note: The /etc/vfstab file lists all the file systems to be automatically mounted at system boot time, with the exception of the /etc/mnttab and /var/run file systems.

  E: showmount This command displays all clients that have remotely mounted file systems that are shared from an NFS server, or only the file systems that are mounted by clients, or the shared file systems with the client access information. The command syntax is:

  showmount [ -ade ] [ hostname ]

  where -a prints a list of all the remote mounts (each entry includes the client name and the directory), -d prints a list of the directories that are remotely mounted by clients, -e prints a list of the files shared (or exported), and hostname selects the NFS server to gather the information from. If hostname is not specified the local host is queried.

  F: * mountd Daemon

  This daemon handles file-system mount requests from remote systems and provides access control. The

  mountd daemon checks /etc/dfs/sharetab to determine which file systems are available for remote

  mounting and which systems are allowed to do the remote mounting.

  * Commands for Troubleshooting NFS Problems

  These commands can be useful when troubleshooting NFS problems.

  rpcinfo Command

  This command generates information about the RPC service that is running on a system.

• Question 200:

  Which three options accurately describe Oracle Solaris 11 zones?

  A. can be NFS servers

  B. are whole root type only

  C. cannot have their own time zone setting

  D. can execute z　 and zpool commands (from a non-global zone)

  E. are virtualized operating system environments, each with its own dedicated OS and kernel

  F. are virtualized operating system environments, created with a single instance of the OS shared kernel

  Correct Answer: ADF

  A: Zones can use Oracle Solaris 11 products and features such as the following: Oracle Solaris ZFS encryption Network virtualization and QoS CIFS and NFS

  C: Non-global zones cannot modify the system clock by default, but each zone can have a separate time zone setting.

  F (not E): The Oracle Solaris Zones partitioning technology is used to virtualize operating system services and provide an isolated and secure environment for running applications. A zone is a virtualized operating system environment created within a single instance of the Oracle Solaris operating system.