Free Practice Questions for Oracle 1z0-822 Exam

D: Example:

# prctl -n task.max-lwps $$

process: 111107: csh

NAME PRIVILEGE VALUE FLAG ACTION RECIPIENT

task.max-lwps

usage 3

privileged 3 - deny -

system 2.15G max deny

F: The following command activates system logging of all violations of task.max-lwps.

# rctladm -e syslog task.max-lwps

#

Note: How to Set the Maximum Number of LWPs for Each Task in a Project

This procedure adds a project named x-files to the /etc/project file and sets a maximum number of LWPs for a task created in the project.

1.Become an administrator.

2. Use the projadd command with the -K option to create a project called x-files. Set the maximum number of LWPs for each task created in the project to 3.

# projadd -K 'task.max-lwps=(privileged,3,deny)' x-files

prctl

- get or set the resource controls of running processes, tasks, and projects.

The prctl utility 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.

Incorrect:

not A: ipcs provides information on the ipc facilities for which the calling process has read access.

not D:

rctladm

- display or modify global state of system resource controls

Not E: prstat - report active process statistics

Note:

* In the Oracle Solaris operating system, the concept of a per-process resource limit has been extended to the task and project entities.

Use one of the following methods to restart the depot server process:

B: Use svcadm(1M) to restart the application/pkg/server instance.

C: Send a SIGUSR1 signal to the depot server process using kill(1). This executes a “graceful restart” that leaves the process intact but reloads all configuration, package, and search data:

# kill -USR1 pid

Note:

* The pkd.depotd service is managed by SMF under the service identifier svc:/application/pkg/server.

How to Specify a Temporary Resource Cap for a Zone

This procedure is use to allocate the maximum amount of memory that can be consumed by a specified zone. This value lasts only until the next reboot. To set a persistent cap, use the zonecfg command.

1. Become superuser, or assume a role that includes the Process Management profile.

The System Administrator role includes the Process Management profile.

2. Set a maximum memory value of 512 Mbytes for the zone my-zone.

# rcapadm -z testzone -m 512M

* Simulation:

* Creating a New Pool By Splitting a Mirrored ZFS Storage Pool

A mirrored ZFS storage pool can be quickly cloned as a backup pool by using the zpool split command.

Currently, this feature cannot be used to split a mirrored root pool.

You can use the zpool split command to detach disks from a mirrored ZFS storage pool to create a new pool with one of the detached disks. The new pool will have identical contents to the original mirrored ZFS storage pool.

By default, a zpool split operation on a mirrored pool detaches the last disk for the newly created pool. After the split operation, import the new pool. For example::

# zpool status tank

pool: tank

state: ONLINE

scrub: none requested

config:

NAME STATE READ WRITE CKSUM

tank ONLINE 0 0 0

mirror-0 ONLINE 0 0 0

c1t0d0 ONLINE 0 0 0

c1t2d0 ONLINE 0 0 0

errors: No known data errors

# zpool split tank tank2

# zpool import tank2

# zpool status tank tank2

pool: tank

state: ONLINE

scrub: none requested

config:

NAME STATE READ WRITE CKSUM

tank ONLINE 0 0 0

c1t0d0 ONLINE 0 0 0

errors: No known data errors

pool: tank2

state: ONLINE

scrub: none requested

config:

NAME STATE READ WRITE CKSUM

tank2 ONLINE 0 0 0

c1t2d0 ONLINE 0 0 0

errors: No known data errors

Rights profiles – The user_attr, prof_attr, and exec_attr databases are now read-only. These local files databases are assembled from fragments that are located in /etc/user_attr.d, /etc/security/prof_attr.d, and /etc/security/exec_attr.d.

The fragment files are not merged into a single version of the file, but left as fragments. This change enables packages to deliver complete or partial RBAC profiles. Entries that are added to the local files repository with the useradd and profiles commands are added to the local-entries file in the fragment directory.

Disabled in the MODE column means that all probe-based failure detection is disabled.

You must enable transitive probing to use this failure detection method that does not require test addresses.

Note:

* ipmpstat

- display IPMP subsystem status

The ipmpstat command concisely displays information about the IPMP subsystem.

The -t option identifies the probe targets that are associated with each IP interface in an IPMP group.

* Target mode displays IPMP probe target information. The following output fields are supported:

/ INTERFACE

The IP interface name associated with the information.

/ MODE

The probe target discovery mode:

routes

Probe targets found by means of the routing table.

multicast

Probe targets found by means of multicast ICMP probes.

disabled

All probe-based failure detection is disabled.

transitive

Failure detection is by means of transitive probing, where the health of the IP interface is determined by probing other active interfaces in the group.

/ TESTADDR

The source address used in outgoing probes. Active interfaces that are being used for data traffic, as well as interfaces that have been explicitly configured with NOFAILOVER test addresses, will have the hostname (or IP address) that is used for sending and receiving the ICMP probes. All other interfaces in the group will display the name of the interface from which the probes are sent. Note that if an active IP interface is configured with both IPv4 and IPv6 test addresses, probe target information will be displayed separately for each test address.

/ TARGETS

A space-separated list of probe target hostnames (or IP addresses) for ICMP probes, or target interfaces for transitive probes. The IP targets will be listed in firing order, and, if no probe targets could be found, this field will be empty.

An interface that has been created cannot become a member of an aggregation.