Free Practice Questions for Oracle 1z0-821 Exam

If administrative changes on the system have rendered a zone unusable or inconsistent, it is possible to change the state of an installed zone to incomplete.

Marking a zone incomplete is irreversible. The only action that can be taken on a zone marked incomplete is to uninstall the zone and return it to the configured state.

B: The /etc/default/syslogd file contains the following default parameter settings. See FILES.

LOG_FROM_REMOTE

Specifies whether remote messages are logged. LOG_FROM_REMOTE=NO is equivalent to the -t command-line option. The default value for LOG_FROM_REMOTE is YES.

* The whoami utility displays your effective user ID as a name.

Here this would be root.

* who am i

The command who shows who is logged on.

Here this would be:

user1 console Dec 30 20:20

* The id utility displays the user and group names and numeric IDs, of the calling process, to the standard output. If the real and effective IDs are different, both are displayed, otherwise only the real ID is displayed.

Here this would be:

uid=0(root) gid=0(root)

Note:

Each UNIX proces has 3 UIDs associated to it. Superuser privilege is UID=0.

Real UID

--------

This is the UID of the user/process that created THIS process. It can be changed only if the running process has EUID=0.

Effective UID

-------------

This UID is used to evaluate privileges of the process to perform a particular action. EUID can be change either to RUID, or SUID if EUID!=0. If EUID=0, it can be changed to anything.

Saved UID

---------

If the binary image file, that was launched has a Set-UID bit on, SUID will be the UID of the owner of the file. Otherwise, SUID will be the RUID.

How to Set Up Email Notification of SMF Transition Events

This procedure causes the system to generate an email notification each time one of the services or a selected service has a change in state. You can choose to use either SMTP or SNMP. Normally, you would only select SNMP if you already have SNMP configured for some other reason.

By default, SNMP traps are sent on maintenance transitions. If you use SNMP for monitoring, you can configure additional traps for other state transitions.

1. Become an administrator or assume a role that includes the Service Management rights profile.'

2. Set notification parameters.

Example 1:

The following command creates a notification that sends email when transactions go into the maintenance state.

# /usr/sbin/svccfg setnotify -g maintenance mailto:sysadmins@example.com

Example 2:

The following command creates a notification that sends email when the switch service goes into the online state.

# /usr/sbin/svccfg -s svc:/system/name-service/switch:default setnotify to-online \ mailto:sysadmins@example.com

Note: The svccfg command manipulates data in the service configuration repository. svccfg can be invoked interactively, with an individual subcommand, or by specifying a command file that contains a series of subcommands.

Changes made to an existing service in the repository typically do not take effect for that service until the next time the service instance is refreshed.

C: /etc/security/exec_attr is a local database that specifies the execution attributes associated with profiles. The exec_attr file can be used with other sources for execution profiles, including the exec_attr NIS map and NIS+ table.

A profile is a logical grouping of authorizations and commands that is interpreted by a profile shell to form a secure execution environment.

Test the remote connection with traceroute.

The Internet is a large and complex aggregation of network hardware, connected together by gateways. Tracking the route one's packets follow (or finding the miscreant gateway that's discarding your packets) can be difficult. traceroute utilizes the IP protocol `time to live' field and attempts to elicit an ICMP TIME_EXCEEDED response from each gateway along the path to some host.

This program attempts to trace the route an IP packet would follow to some internet host by launching UDP probe packets with a small ttl (time to live) then listening for an ICMP "time exceeded" reply from a gateway.

The following options are supported:

C

Connects to the zone console. Connects to the zone console.

Note:

After you install a zone, you must log in to the zone to complete its application environment. You might log in to the zone to perform administrative tasks as well. Unless the -C option is used to connect to the zone console, logging in to a zone using zlogin starts a new task. A task cannot span two zones

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.

* (Not A, B, C): interval (here 10 seconds): Specifies the length in seconds to pause between each interval report.

* duration (here 24 h)

* -R report[, report] (here high)

Print a summary report.

High Print a summary report detailing the highest usage of each resource and zone during any interval of the zonestat utility invocation.

Note: The zonestat utility reports on the cpu, memory, and resource control utilization of the currently running zones. Each zone's utilization is reported both as a percentage of system resources and the zone's configured limits.

The zonestat utility prints a series of interval reports at the specified interval. It optionally also prints one or more summary reports at a specified interval.

The default output is a summary of cpu, physical, and virtual memory utilization. The -r option can be used to choose detailed output for specific resources.