The Oracle 1Z0-821 exam validates your ability to administer Oracle Solaris 11 systems in production environments. This certification is designed for systems administrators and IT professionals who manage Solaris infrastructure and need to demonstrate competency across installation, software management, storage, networking, and security. This page guides you through the exam syllabus, question formats, and effective preparation strategies to help you succeed on your first attempt.
Use this topic map to guide your study for Oracle 1Z0-821 (Solaris 11 System Administration) within the Oracle Operating Systems path.
The 1Z0-821 exam measures both theoretical knowledge and practical reasoning through a mix of question types. Questions progress in difficulty and require you to apply concepts to real-world Solaris administration scenarios.
Questions build on each other, so strong foundational knowledge of installation, services, and storage directly supports your ability to answer advanced questions on zones and security.
An effective study plan breaks the nine topics into manageable weekly goals and reinforces connections between installation, configuration, and troubleshooting. Combine hands-on lab work with question review to build both speed and confidence.
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Storage administration (ZFS, partitioning, file systems) and service management typically account for a significant portion of the exam. However, all nine domains are tested, so balanced preparation across installation, networking, zones, and security is essential. Review the official exam guide to confirm current topic weightings.
A typical workflow starts with installing Solaris, then configuring the network and storage. User accounts and access controls are applied next, services are enabled and managed, and zones may be created for workload isolation. Understanding these dependencies helps you answer scenario questions correctly and troubleshoot issues faster in production.
Hands-on experience is highly valuable; aim to practice installation, zone creation, ZFS configuration, and service management in a lab environment. Prioritize labs that involve troubleshooting, such as fixing a failed service or recovering from a storage issue, because these scenarios appear frequently on the exam and build problem-solving skills.
Common errors include confusing SMF service states, misunderstanding zone resource limits, and overlooking file permission inheritance in ZFS. Many candidates also rush through scenario questions without fully reading the requirements, leading to incorrect answers. Take time to understand not just the "what" but the "why" behind each concept.
In your final week, focus on weak areas identified in practice tests rather than re-reading all topics. Do one more timed practice test to confirm pacing, aim to complete questions with 10-15 minutes to spare for review. On exam day, read each question fully, eliminate obviously wrong answers, and flag difficult items to revisit at the end.
You are installing the Oracle Solaris 11 Operating System by using the Text Installer. Which two options describe the features associated with the Text Installer?
You need to connect two nonglobal zones using a private virtual network.
Identify the network resources required in the global zone to accomplish this.
A user account must be a member of a primary group, and may also be a member of one or more secondary groups. What is the maximum total number of groups that one user can concurrently belong to?
Each user belongs to a group that is referred to as the user's primary group. The GID number, located in the user's account entry within the /etc/passwd file, specifies the user's primary group.
Each user can also belong to up to 15 additional groups, known as secondary groups. In the /etc/group file, you can add users to group entries, thus establishing the user's secondary group affiliations.
Note (4 PSARC/2009/542):
his project proposes changing the maximum value for NGROUPS_MAX from 32 to 1024 by changing the definition of NGROUPS_UMAX from 32 to 1024.
The use for a larger number of groups is described in CR 4088757, particular in the case of Samba servers and ADS clients; the Samba servers map every SID to a Unix group. Users with more than 32 groups SIDs are common. We've seen reports varying from '64 is enough', '128 is absolutely enough' and 'we've users with more 190 group SIDS).
NGROUPS_MAX as defined by different Unix versions are as follows (http://www.j3e.de/ngroups.html):
Linux Kernel >= 2.6.3 65536
Linux Kernel < 2.6.3 32
Tru64 / OSF/1 32
IBM AIX 5.2 64
IBM AIX 5.3 ... 6.1 128
OpenBSD, NetBSD, FreeBSD, Darwin (Mac OS X) 16
Sun Solaris 7, 8, 9, 10 16 (can vary from 0-32)
HP-UX 20
IRIX 16 (can vary from 0-32)
Plan 9 from Bell Labs 32
Minix 3 0 (Minix-vmd: 16)
QNX 6.4 8
Examine this command and its output:
$ zfs list -r -t all tank
Name USED AVAIL REFER MOUNTPOINT
tank 3.00G 1.84G 32K /tank
tank/database 3.00G 1.84G 2.00G /tank/database
tank/[email protected] 1.00G - 2.00G --
Which two conclusions can be drawn based on this output?
Identify the correct description of an IPS image.
An image is a location where packages can be installed.
An image can be one of three types:
* Full images are capable of providing a complete system.
* Partial images are linked to a full image (the parent image), but do not provide a complete system on their own.
* User images contain only relocatable packages.