Practice 1Z0-820 Exam Online

Question 1

You upgraded your server to Oracle bolans 11 and you imported a zpool(pooll) that was created in bolaris 10. You need to create an encrypted ZFS file system in pooll, but first you need to make sure that your server supports ZFS encryption.

Which four statements are true for support of ZFS encryption?

A : The encrypted file system must have been created in Oracle Solaris 11. To encrypt a ZFS file system from a previous version of Solaris, upgrade the zpool and create a new encrypted ZFS file system in that zpool Finally, move or copy the data from the existing ZFS file system into the new encrypted ZFS file system.

B : if you plan to create an encrypted file system in an existing zpool, the zpool must be upgraded to ZFS version 30, minimum

C : ZFS encryption is integrated with the ZFS command set and no additional packages need to be installed.

D :

ZFS encryption requires that the ZFS Dataset Encryption package be installed.

E If you plan to create an encrypted file system in an existing zpool, the zpool must be upgraded to ZFS version 21, minimum. D f Encryption is supported at the pool or dataset (file system) level

E : Encryption is supported at the pool level only and every file system in the pool will be encrypted.

F :

You cannot create an encrypted file system in a zpool that was created prior to Oracle Solaris 11.

Create a new zpool in Solaris 11, create an encrypted ZFS file system in the new zpool, and move or copy the data from the existing file system into the new encrypted file system.

Answer: A,B,C

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:default

setprop config_params/shadow_threads=integer: 16

end

svcadm 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: default

setprop config_params/shadow_threads = integer: 16

end

svcadm 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

A process associated with a user application keeps crashing on the user, but a core dump is not being saved in the /var/core/pprocess directory. The core dump configuration is:

global core file pattern: /var/core/core. %f.%p

global core file content: default

init core file pattern: core

init core file content: default

global core dumps: enabled

per-process core dumps: enabled

global setid core dumps disabled

per-process setid core dumps: disabled

global core dump logging: disabled

Which option would change the core dump configuration so that a user's per-process core dumps get saved in the /var/core/pprocess directory?

A : coreadm ---g /var/core/pprocess/core.%f %p

B : coreadm ---i /var/core/pprocess/core.%f.%p

C : coreadm ---i /var/core/pprocess/core.%f.%p coreadm ---e proc---setid ---d process

D : coreadm ---g /var/core/pprocess/core.%f.%p coreadm ---e global---setid

E :

Make this change to the /etc/coreadm conf file:

init core file pattern: /var/core/pprocess/core.%f.%p

Answer: A

Question 5

After installing the OS, you boot the system and notice that the syslogd daemon is not accepting messages from remote systems.

Which two options should you select to modify the syslogd daemon configuration so that it accepts messages from remote systems?

A :

svccfg -s svc:/system/system -log setprop start/exec= ''syslogd -t''

Restart the syslogd daemon.

B :

Set the following parameter in the /etc/syslogd.conf file: LOG_FROM_REMOTE= YES

Restart the syslogd daemon.

C :

svcadm enable svc:/system/system -log/config/log_from_remote

Restart the syslogd daemon.

D :

svccfg -s svc:/system/system-log setprop config/log_from_remote=true

Restart the syslogd daemon.

E :

Set the following parameter in the /etc/default/syslogd file: LOG_FROM_REMOTE=YES

Restart the syslogd daemon.

Answer: B,D

Name:	Upgrade to Oracle Solaris 11 System Administrator
Exam Code:	1Z0-820
Certification:	OPN Certified Specialist
Vendor:	Oracle
Total Questions:	135
Last Updated:	Apr 22, 2024

Oracle 1Z0-820