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: Jan 29, 2026

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Question 1

You want to deploy Oracle Solans 11 with the Automated Installer (Al). You need to make sure that your server and network meet the requirements for using Al Choose the three options that describe the requirements for using Al. (Choose three.)

A : You must set up DHCP. The DHCP server and Al install server can be the same machine or two different machines.

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

C : The minimum requirement to operate as an Al install server is 1 GB of memory.

D : 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 Al manifests and a single install service.

E : Load the install/installadm package on the Al server.

Answer: A,D

Question 2

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

A : JumpStart: begin scriptAI: package repository

B : JumpStart: setup_serverAI: installadm create-service

C : JumpStart: add_Install_clientAI: SMF system configuration profile files

D : JumpStart: finish scripts and sysidsfg filesAI: manifest files

Answer: B

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

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 5

Review the output from a ZFS file system:

NAMEPROPERTYVALUESOURCE

pool1/encryptencryptionaes-256-ccmlocal pool1/encryptkeysourceraw,file///mykeylocal

You need to recreate the pooM/encrypt file system exactly as it is listed above Which two commands can you use to recreate the pooM/encrypt file system?

(Choose two.)

A : pktool genkey keystone=file outkey=/mykey keytype=aes keylen=256

B : genkey pktool keystore=file outkey=/mykey keytype=aes keylen=256

C : zfs create -o encryption=aes-256-ccm -o keysource=raw,file://mykey pooll/encrypt

D : zfs create -o encryption=aes-256-ccm -o keysource=raw,file:///mykey pooM/encrypt

E : zfs create -o encryption=aes-256-ccm -o keysource=raw,file:///mykey source=local pooll/encrypt

Answer: B,C

Page: 1 / 27

Total 135 Questions | Updated On: Jan 29, 2026

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