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  1. Home
  2. Oracle Certification
  3. 1Z0-821 Exam
  4. Oracle.1Z0-821.v2024-03-21.q239 Dumps
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Question 116

Which two are user definable OpenBoot parameters that can be set in the OpenBoot PROM?

Correct Answer: D,E
The NVRAM chip stores user-definable system parameters, also referred to as NVRAM variables or EEPROM parameters. The parameters allow administrators to control variables such as the default boot device and boot command. The NVRAM also contains writeable areas for user-controlled diagnostics, macros, and device aliases. NVRAM is where the system identification information is stored, such as the host ID, Ethernet address, and time-of-day (TOD) clock.
Examples of NVRAM variables:
Variable Default Description boot-device disk or net
The device from which to start up.
diag-device net The diagnostic startup source device.
diag-file Empty string Arguments passed to the startup program in diagnostic mode.
diag-switch? false Whether to run in diagnostic mode
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Question 117

You start to execute a program by using the following command:
~ /bigscript &
You then determine that the process is not behaving as expected, and decide that you need to terminate the process.
Based on the information shown below, what is the process number you should terminate?

Correct Answer: A
From the output exhibit we can deduce that the shell has id 15156.
It has spawned three subprocesses:
grep: id 15166
ps -aef 15165
The remaining 15163 must be the subshell (see note below).
This is the id of the process which should be terminated.
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Question 118

View the exhibit.

The configuration information in the exhibit is displayed on your system immediately after installing
the OS. Choose the option that describes the selection made during the Installation of the OS to obtain this configuration.

Correct Answer: A
There are two ways to configure the network configuration: automatic or manual.
In the exhibit we see that DHCP has been used used. This indicates an automatic network
configuration.
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Question 119

Identify three differences between the shutdown and init commands.

Correct Answer: A,B,E
Note shutdown: shutdown is executed by the super user to change the state of the machine. In most cases, it is used to change from the multi-user state (state 2) to another state.
By default, shutdown brings the system to a state where only the console has access to the operating system. This state is called single-user.
Before starting to shut down daemons and killing processes, shutdown sends a warning message and, by default, a final message asking for confirmation. message is a string that is sent out following the standard warning message "The system will be shut down in ..." If the string contains more than one word, it should be contained within single (') or double (") quotation marks.
Note init: If a 0 through 6 is entered, init enters the corresponding run level. Run levels 0, 5, and 6 are reserved states for shutting the system down. Run levels 2, 3, and 4 are available as multi-user operating states.
OPTIONS 0 Go into firmware. 5 Shut the machine down so that it is safe to remove the power. Have the machine remove power, if possible.
6 Stop the operating system and reboot to the state defined by the initdefault entry in /etc/inittab.
Reference: man init, man shutdown
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Question 120

dbzone is currently running on your server.
Which two methods would you use to safely and cleanly shut down dbzone and all of its applications?

Correct Answer: D,E
D:zoneadm haltcommand haltsthe specified zones. halt bypasses running the
shutdown scripts inside the zone. It also removes run time resources of the zone.
E:Use: zlogin zone shutdown
to cleanly shutdown the zone by running the shutdown scripts.
Use this procedure to cleanly shut down a zone.
1.Become superuser, or assume the Primary Administrator role.
2. Log in to the zone to be shut down, for example, my-zone, and specify shutdown as the name of the utility and init 0 as the state. global#zlogin my-zone shutdown -y -g0 -i 0
Reference: System Administration Guide: Oracle Solaris Containers-Resource Management and Oracle Solaris Zones, How to Use zlogin to Shut Down a Zone
Reference:man zoneadm
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