Most Recent Oracle 1Z0-820 Exam Dumps

Prepare for the Oracle Upgrade to Oracle Solaris 11 System Administrator exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Oracle 1Z0-820 exam and achieve success.

The questions for 1Z0-820 were last updated on Apr 29, 2025.

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Question No. 1

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.

Aping - s mars

Bcat /etc/vfstab

Ccat /etc/dfs/dfstab

Dsharemgr show -v

Eshowmount -e mars

Frpcinfo -s mars | egrep 'nfs|mountd'

Show Answer

Correct Answer: A, E, F

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/vfstabfile (B) on the client, or comment out the 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.

Incorrect answers:

A: not a network connectivity problem

D: The sharemgr command configures share groups and the shares contained within them.

Question No. 2

How should you permanently restrict the non-global zone testzone so that it does not use more than 20 CPU shares while it is running?

AWhile configuring the zone, add this entry:
add rct1
set name = capped.cpu-shares
add value (priv = privileged, limit = 20, action = none)
end
exit

BWhile configuring the zone, add this entry:
add rct1
set name= zone.cpu-shares
add value (priv=privileged, limit=20, action=none)
end
exit
from command line, enter:
# dispadmin - d FSS

CFrom the command line enter:
#prct1 -n zone.cpu-shares - r - v 20 - i zone testzone

DFrom the command line, enter:
#prct1 - n zone.cpu-shares - v 80 - r - i zone global

Show Answer

Correct Answer: C

Theprctlutility allows the examination and modification of the resource controls associated with an active process, task, or project on the system. It allows access to the basic and privileged limits and the current usage on the specified entity.

How to Change thezone.cpu-sharesValue in a Zone Dynamically

This procedure can be used in the global zone or in a non-global zone.

Be superuser, or have equivalent authorizations.

For more information about roles, seeConfiguring and Using RBAC (Task Map) inSystem Administration Guide: Security Services.

Use theprctlcommand to specify a new value forcpu-shares.

# prctl -n zone.cpu-shares -r -v value -i zone zonename

idtypeis either thezonenameor thezoneid.valueis the new value.

Note: project.cpu-shares

Number of CPU shares granted to a project for use with the fair share scheduler

Question No. 3

Which three Installation option allow for a "hands free" and "unattended'" Installation of the Solaris 11 environment?

AJumpstart

BLiveCD

CA text Installation over the network

DAn Automated Installation performed on an x86 client

EAn Automated Installation using media from a local DVD or USB drive

FAn Automated Installation using a networked repository

Show Answer

Correct Answer: D, E, F

Oracle Solaris 11 uses Automated Installer (AI) for unattended installations.

Unattended installations are possible by placing the contents of the AI Image media (or ISO image contents from a download) on an AI server.

Incorrect answers:

A: Jumpstart used for Solaris 10.

B: LiveCD is used for hands-on installation.

http://www.oracle.com/technetwork/server-storage/solaris11/overview/solaris-matrix-1549264.html

Question No. 4

View the Exhibit, and review the zpool and ZFS configuration information from your system

The application development team requested an up-to-date copy of the data from the /prod_data file system. You decide to give the team one of the disk drives containing the data by breaking the mirror, removing the disk c4t1d0 and mounting c4t1 dO under a new mount point named /dev_data. Identify the correct procedure for breaking the mirror, removing c4t1d0. and making the data on that drive accessible under the /dev_data mount point

Azfs destroy pooh /prod_data
zfs create pool1/prod_data c4t1d0 zfs create pool1/dev_data c4t1d0

Bzfssplitpool1/prod_data
zfs mount -F zfs pool1/dev_data c4t1d0

Czpool split pooll pool2 zpool import pool2 zfs set mountpoint=/dev_data pool2/prod_data

Dzpool split pool1/prod_data -n pool2/dev_data
zpool import -o mountpoint=/dev_data pool2/dev_data
3 e zfs split pool1/prod_data -n pool2/dev_data zfs set mountpoint=/dev_data pool2/dev_data

Show Answer

Correct Answer: C

Question No. 5

You are asked to troubleshoot networking issues on an unfamiliar system.

Select the correct command to display what network devices are installed.

Aifconfig -a

Bdladm show-dev

Cdladm show-phys

Ddladm show-ether

Enetadm show-dev

Fnetadm show-ether

Show Answer

Correct Answer: B

dladm show-dev

Shows information for all devices or the specified device.

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