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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 11

View the Exhibit to inspect the boot environment Information displayed within a non global zone on your system.

Which two options describe the solaris-1 boot environment?

Correct Answer: A,D
Explanation/Reference:
Explanation:
A: The - of the Active Column indicates that this boot environment is inactive, and hence not bootable.
Note: The values for the Active column are as follows:
R - Active on reboot.
N - Active now.
NR - Active now and active on reboot.
"-" - Inactive.
"!" - Unbootable boot environments in a non-global zone are represented by an exclamation point.
D: beadm create
Creates a new boot environment name, beName.
Note: beadm list
Lists information about the existing boot environment, which is be Name, or lists information for all boot environments if be Name is not provided.
Note: Using beadm Utility (Tasks)
You can use the beadm utility to create and manage snapshots and clones of your boot environments.
Note the following distinctions relevant to boot environment administration:
* A snapshot is a read-only image of a dataset or boot environment at a given point in time. A snapshot is not bootable.
* A boot environment is a bootable Oracle Solaris environment, consisting of a root dataset and, optionally, other datasets mounted underneath it. Exactly one boot environment can be active at a time.
* A clone of a boot environment is created by copying another boot environment. A clone is bootable.
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Question 12

Which option displays the result of running the zfs list command?

Correct Answer: B
The zfs list command provides an extensible mechanism for viewing and querying dataset information.
You can list basic dataset information by using the zfs list command with no options. This command displays the names of all datasets on the system and the values of their used, available, referenced, and mountpoint properties. For more information about these properties, see Introducing ZFS Properties.
For example:
# zfs list NAME USED AVAIL REFER MOUNTPOINT pool 476K 16.5G 21K /pool pool/clone 18K 16.5G 18K /pool/clone pool/home 296K 16.5G 19K /pool/home pool/home/marks 277K 16.5G 277K /pool/home/marks pool/home/marks@snap 0 - 277K pool/test 18K 16.5G 18K /test
Reference: Querying ZFS File System Information, Oracle Solaris ZFS Administration Guide
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Question 13

Consider the following commands:
What is displayed when this sequence of commands is executed using the bash shell?

Correct Answer: B
First line (rm file1) deletes/removes file1.
Second line captures the text into file2.
The first part of line 3 (cat file1) fails as the file1 does not exist.
The && (AND) operator will ensure that the third line fails. The result of line 3 will be the result of
first part of line 3 (cat file1).
Note: cat - concatenate files and print on the standard output
Note #1: A list is a sequence of one or more pipelines separated by one of the operators ';', '&',
'&&', or '||', and optionally terminated by one of ';', '&', or a newline.
Of these list operators, '&&' and '||' have equal precedence, followed by ';' and '&', which have
equal precedence.
AND and OR lists are sequences of one or more pipelines separated by the control operators '&&'
and '||', respectively. AND and OR lists are executed with left associativity.
An AND list has the form
command1 && command2
command2 is executed if, and only if, command1 returns an exit status of zero.
An OR list has the form
command1 || command2
command2 is executed if, and only if, command1 returns a non-zero exit status.
The return status of AND and OR lists is the exit status of the last command executed in the list.
Note #2 (on exit status): Zero means command executed successfully, if exit status returns non-
zero value then your command failed to execute.
Reference: Bash Reference Manual, Lists of Commands
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Question 14

You want the system to generate an email notification each time one of the services has changed its state.
Which option would send an email message to the system administrator whenever a service changes to the maintenance state?

Correct Answer: C
Explanation/Reference:
Explanation:
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:
The following command creates a notification that sends email when transactions go into the maintenance state
# /usr/sbin/svccfg setnotify -g maintenance mailto:[email protected]
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Question 15

The ZFS configuration on your server is:
Pool1 6.67G31K/pool
Pool1/data31K31K/data
Select the three commands that you would use to 1. Create, 2. List, and 3. Delete a snapshot of the /data file system.

Correct Answer: A,D,E
Explanation/Reference:
Explanation:
A: Snapshots are created by using the zfs snapshot command, which takes as its only argument the name of the snapshot to create.
D: You can list snapshots as follows:
# zfs list -t snapshot
E: Snapshots are destroyed by using the zfs destroy command. For example:
# zfs destroy tank/home/ahrens@now
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