Free Oracle 1Z0-820 Exam Questions

Become Oracle Certified with updated 1Z0-820 exam questions and correct answers

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Total 135 Questions | Updated On: May 10, 2026

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Question 1

You need to remove the gzip software package.

Before you remove the package, you want to create a backup of the operating environment.

Which IPS command should you use?

A : Use the pkg remove command with the -require-backup-be option

B : Use the beadm create command to create a new boot environmentUse the pkg remove command to remove the gzip package from the current boot environment.

C : Use the luucreate command to create a new boot environment.Use the pkgrm command to remove the gzip package from the current boot environment

D : Use the pkg unmstall command with the -backup-be-name option

Answer: B

Question 2

You created a new zpool. Now you need to migrate the existing ZFS file system from pool1/prod to pool2/prod.

You have these requirements:

1. Users must have access to the data during the migration, so you cannot shutdown the file system while the migration takes place.

2. Because you want to copy the data as quickly as possible, you need to increase the server resources devoted to the ZFS migration.

Which method would you use to modify the ZFS shadow migration daemon defaults to increase the concurrency and overall speed of migration?

A : Svccfg - s filesystem/shadowd:defaultsetprop config_params/shadow_threads=integer: 16endsvcadm refresh filesystem/shadowd: default

B : Specify the -b < blocksize > option with the zfs create command and increase the value of < blocksize >

C : Use the -o -volblocksize=< blocksize >option with the zfs create command and increase the value of the default < blocksize >.

D : Svccfg -s filesystem/zfs: defaultsetprop config_params/shadow_threads = integer: 16endsvcadm refresh filesystem/zfs:default

Answer: A

Question 3

Which three options are valid methods of installing a Solaris 10 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 : Migrate an existing 32 bit Solaris10 system to a solaris10 branded non-global zone using the P2V process.

F : 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.

Answer: A,B,D

Question 4

Select the two correct descriptions of the configuration of a default installation of Oracle Solaris 11. (Choose two.)

A : The root account no longer exists.

B : Access to the root account is restricted by RBAC.

C : The Solaris Management Console GUI (SMC) can be used to assign the root role to a user.

D : telnet, ftp, and other services are disabled for network access, but root can log in by using SSH.

E : Any logged in user, who knows the password for the root account, can modify the system configuration.

F : usermod -R +root alice will allow user alice to assume the role of root to modify the system configuration.

Answer: A,B

Question 5

When setting up Automated Installer (AI) clients, an interactive tool can be used to generate a custom system configuration profile. The profile will specify the time zone, data and time, user and root accounts, and name services used for an AI client installation. This interactive tool will prompt you to enter the client information and an SC profile (XML) will be created.

Which interactive tool can be used to generate this question configuration?

A : sys-unconfig

B : installadm set-criteria

C : sysconfig create-profile

D : installadm create-profile

Answer: B

Page: 1 / 27

Total 135 Questions | Updated On: May 10, 2026

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