[Feb 11, 2024] Free Oracle Solaris 1Z0-821 Official Cert Guide PDF Download
Oracle 1Z0-821 Official Cert Guide PDF
NEW QUESTION # 143
Which two are user definable OpenBoot parameters that can be set in the OpenBoot
PROM?
- A. System date and time
- B. Verbose hardware diagnostics
- C. Host ID
- D. IP address for the system console
- E. Powering off the hardware
- F. Default boot device
Answer: B,F
Explanation:
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
NEW QUESTION # 144
Your server has a ZFS storage pool that is configured as follows:
The server has two spare 146-GB disk drives: c3t5d0 c3t6d0
You need to add more space to the pool1 storage pool. Which command would add more mirrored storage to the pool1 storage pool?
- A. zpool attach pool1 mirror c3t5d0 c3t6d0
- B. zpool attach pool1 c3r3d0 c3r5d0; zpool attach pool1 c3r4d0 c3r6d0
- C. zpool add pool1 c3r3d0 c3r5d0; zpool add pool1 c3r4d0 c3r6d0
- D. zpool add pool1 mirror c3t5d0 c3t6d0
Answer: D
NEW QUESTION # 145
You want to display network interface information. Which command should you use?
- A. ipadm show-prop
- B. ipadm show-if
- C. ipadm show-addrprop
- D. ipadm show-addr
Answer: B
Explanation:
Reference: ipadm(1M) - the new ifconfig(1M)
NEW QUESTION # 146
You attempted to reboot a system via the init command, however the system did not perform boot sequence into the Oracle Solaris Operating Environment. You are presented with a prompt from the OpenBoot PROM. Which command would you enter, to boot the system from the default device?
- A. boot
- B. boot-s0
- C. boot-net install
- D. boot-default
Answer: A
Explanation:
boot With this form, boot loads and executes the program specified by the default boot arguments from the default boot device
Note: boot has the following general format: boot [device-specifier] [arguments] where device-specifier and arguments are optional.
Reference: OpenBoot 4.x Command Reference Manual
NEW QUESTION # 147
Your task is to convert a JumpStart sysidcfg file to an Automated Installer (AI) sc_profile.xml file, using js2ai.
Select two unsupported items that will require changes.
- A. root_password=rJmvLUXM10cU
- B. name_service-NTS+
- C. terminal = zterms
- D. timezone=US/pacific
- E. network_interface=PRIMARY
- F. system_locale=en_US
Answer: C,F
Explanation:
A: terminal
The js2ai tool does not perform any translation. Make sure the terminal type speciied in the sysidcfg ile is supported in Oracle Solaris 11.
D: system_locale
The js2ai tool does not perform any translation. Make sure the locale specified in the sysidcfg ile is supported in Oracle Solaris 11.
NEW QUESTION # 148
After installing the OS, the following network configuration information is displayed from the system:
Which option describes the state of this server?
- A. The automatic network configuration option was chosen during the installation of the OS.
- B. The network was not configured during the installation of the OS.
- C. The manual network configuration option was chosen during the installation of the OS.
- D. The network interface is configured with a static IP address.
Answer: B
Explanation:
Only the loopback addresses are configured. No IP address is configured.
NEW QUESTION # 149
You have a process called bigscript, and you need to know the PID number for this process. Which command will provide that information?
- A. prstat bigscript
- B. pkillbigscript
- C. pgrep bigscript
- D. ps bigscript
Answer: D
Explanation:
The ps command prints information about active processes. Without options, ps prints information about processes associated with the controlling terminal. The output contains only the process ID, terminal identifier, cumulative execution time, and the command name. Otherwise, the information that is displayed is controlled by the options.
Reference: man ps
NEW QUESTION # 150
You need to migrate a UFS file system named /production_ufs to a ZFS file system named /production_ufs. The /production_ufs file system cannot be taken down or be out of production duringthe migration,and the current /production_ufs file system must remain active until the /ptoduction_zfs file system is copied and ready.
Which method allows you to meet both requirements?
1.Copy live data from /production_ufs to /production_zfs while /production_ufs is in use.
2.When the copy is complete,/production_zfs will contain an up-to date copy of /production_ufs
- A. Create a snapshot of the UFS file system. Create the new ZFS file system. Use cpio to copy data from the snapshot to the new ZFS file system.
- B. Mirror the existing UFS file system by using SVM.After both submissions are in sync,migrate one of the submissions to a ZFS file System by using Live Upgrade.
- C. Create a new Boot Environment. Create the ZFS file system. Use lucreate -m to copy data from the Current UFS file system to the new ZFS file system.
- D. Create the new ZFS file system by using zfs create import to import data from the existing UFS file system into the new ZFS file system
- E. Create the new zfs file system by using the zfs create -o shadow.
Answer: E
Explanation:
Migrating Data With ZFS Shadow Migration ZFS shadow migration is a tool you can use to migrate data from an existing file system to a new file system. A shadow file system is created that pulls data from the original source as necessary.
You can use the shadow migration feature to migrate file systems as follows:
*A local or remote ZFS file system to a target ZFS file system
*A local or remote UFS file system to a target ZFS file system
Shadow migration is a process that pulls the data to be migrated:
*Create an empty ZFS file system.
*Set the shadow property on an empty ZFS file system,which is the target (or shadow) file
system,to point to the file system to be migrated.
For example:
# zfs create -o shadow=nfs://system/export/home/ufsdata users/home/shadow2
*Data from file system to be migrated is copied over to the shadow file system.
NEW QUESTION # 151
In a default standalone installation of Oracle Solaris 11, what is the default minimum length in characters of a user password, and where is the minimum password length defined?
- A. Default minimum length is 8, and is defined in /etc/shadow.
- B. Default minimum length is 8, and is defined in /etc/default/password.
- C. Default minimum length is 6, and is defined in /etc/default/password.
- D. Default minimum length is 8, and is defined in /usr/sadm/defadduser.
- E. Default minimum length is 6, and is defined in /usr/sadm/defadduser.
- F. Default minimum length is 6, and is defined in /etc/shadow.
Answer: C
Explanation:
Explanation/Reference:
Explanation:
By default, the passwd command assumes a minimum length of six characters. You can use the PASSLENGTH default in the /etc/defaults/passwd files to change that by setting the minimum number of characters that a user's password must contain to some other number.
NEW QUESTION # 152
You want to deploy Oracle Solaris 11 with the Automated Installer (AI). You need to make sure that your server and network meet the requirements for using AI.
Choose the three options that describe the requirements for using AI.
- A. If two client machines have different architectures and need to be installed with the same version of the Oracle Solaris 11 OS, then create two AI manifests and a single install service.
- B. You need a separate install service for each different client architecture that you plan to install, and for each different version of the Oracle Solaris 11 OS that you plan to install on client systems.
- C. The install server needs to be able to access an Oracle Solaris Image Packaging System (IPS) software package repository; the clients do not.
- D. If two client machines have different architectures and need to be installed with different versions of the Oracle Solaris 11 OS, then create two AI manifests and two install services.
- E. You can create only one manifest per install service. If you need more than one manifest create multiple install services.
- F. The install server can be either an x86 machine or a SPARC machine.
Answer: A,C,F
Explanation:
B (not A, not D, Not C): If two client machines need to be installed with the same version of the Oracle Solaris 11 OS but need to be installed differently in other ways, then create two AI manifests for the AI install service. The different AI manifests can specify different packages to install or a different slice as the install target, for example. Note: An AI manifest provides installation instructions. The AI manifest specifies one or more IPS package repositories where the client retrieves the packages needed to complete the installation. The AI manifest also includes the names of additional packages to install and information such as target installation device and partition information.
F: The install server can be either an x86 machine or a SPARC machine.
NEW QUESTION # 153
The su command by default makes an entry into the log file for every su command attempt. The following is a single line from the file:
SU 12/18 23:20 + pts/1 user1-root
What does the + sign represent?
- A. successful attempt
- B. The attempt was from a pseudo terminal,and not the console.
- C. Time zone is not set.
- D. The attempt was from a user that is in the adm group,same as root.
- E. unsuccessful attempt
Answer: A
Explanation:
The sulog file,/var/adm/sulog,is a log containing all attempts (whether successful or not) of the su command. An entry is added to the sulog file every time the su command is executed. The fields in sulog are: date,time,successful (+) or unsuccessful (-),port,user executing the su command,and user being switched to. In the preceding example,all su attempts were successful,except for the attempt on 2/23 at 20:51,when user pete unsuccessfully attempted to su to user root.
Look for entries where an unauthorized user has used the command inappropriately. The following entry shows a successful (indicated by +) su from user userid to root.
SU 03/31 12:52 + pts/0 <userid>-root
NEW QUESTION # 154
To confirm the IP address and netmask have been correctly configured on the network interfaces which command should you use?
- A. ipadm show-addr
- B. ipdilm show-if
- C. ipadm show-addripadm show-mask
- D. ipadm show-ifconfig
- E. ipadm show-nic
Answer: A
Explanation:
Explanation/Reference:
Explanation:
Show address information, either for the given addrobj or all the address objects configured on the specified interface, including the address objects that are only in the persistent configuration.
State can be: disabled, down, duplicate, inaccessible, ok, tentative
Example:
# ipadm show-addr
ADDROBJ TYPE STATE ADDR
lo0/v4 static ok 127.0.0.1/8
lo0/v6 static ok ::1/128
NEW QUESTION # 155
Which five statements describe options available for installing the Oracle Solaris 11operating system using the installation media?
- A. The LiveCD installer can be used for SPARC or x86 platforms.
- B. If you are installing Oracle Solaris 11 on an x86-based system that will have more than one operating system installed in it, you cannot partition your disk during the installation process.
- C. The LiveCD installer cannot be used if you need to preserve a specific Solaris Volume Table of Contents (VTOC) slice in your current operating system.
- D. The LiveCD Installation cannot be used to install multiple instances of Oracle Solaris.
- E. You can perform a text or LiveCD installation locally or over the network.
- F. The GUI installer cannot be used to upgrade your operating system from Solaris 10.
- G. The text Installer does not install the GNOME desktop. The GNOME desktop package must he added after you have installed the operating system.
- H. The LiveCD Installer is for x86 platforms only.
Answer: A,C,E,F,G
Explanation:
Explanation/Reference:
Explanation:
A: If the network is setup to perform automated installations, you can perform a text installation over the network by setting up an install service on the network and selecting a text installation when the client system boots.
B: After a fresh install of Solaris 11 express, only the console mode is activated.
To add Gnome, simply do :
$ sudo pkg install slim_install
This will install additional packages that are not installed by default.
D: The text installer advantages over the GUI installer include:
* In addition to modifying partitions, the text installer enables you to create and modify VTOC slices within the Solaris partition.
F: How do I upgrade my Solaris 10 or lower systems to Solaris 11?
Unfortunately, you CAN'T. There is no direct upgrade installer or other tool that will allow you to upgrade from earlier releases of Solaris to Solaris 11. This is primarily due to the vast changes in the packaging mechanism in Solaris 10.
NEW QUESTION # 156
In a fresh installation of Oracle Solaris 11,default datalinks are named with a genetic naming convention,and they increment as you add interfaces. What is the default name?
- A. lo#
- B. nic#
- C. net#
- D. eth#
- E. el000g#
Answer: C
Explanation:
When you install this Oracle Solaris release on a system for the first time,Oracle Solaris
automatically provides generic link names for all the system's physical network devices.
This name assignment uses the net# naming convention,where the # is the instance
number. This instance number increments for each device,for example,net0,net1,net2,and
so on.
Note:
Network configuration in Oracle Solaris 11 includes
* Generic datalink name assignment - Generic names are automatically assigned to datalinks using the net0,net1,netN naming convention,depending on the total number of network devices that are on the system
NEW QUESTION # 157
What is the output of the following command,if executed using the default shell for the root role account of a standard Live CD Install of Oracle Solaris 11?
echo '$SHELL'
- A. /usr/bin/bash
- B. /usr/bin/ksh
- C. the PID for the current shell
- D. $SHELL
Answer: D
Explanation:
Single quotes are most strict. They prevent even variable expansion. Double quotes
prevent wildcard expansion but allow variable expansion. For example:
#!/bin/sh
echo $SHELL
echo "$SHELL"
echo '$SHELL'
This will print:
/usr/bin/bash
/usr/bin/bash
$SHELL
NEW QUESTION # 158
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.
- A. zfs destroy pool1/data@now
- B. zfs list -t snapshot pool1/data
- C. zfs snapshot pool1/data@now
- D. zfs create snapshot pool1/data@now
- E. zfs list -t snapshot
- F. zfs destroy snapshot pool1/data@now
Answer: A,B,C
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
NEW QUESTION # 159
When issuing the zonestat 2 1h is command, the following information is displayed:
Which two options accurately describe the statistics contained in the output?
- A. dbzone is using 2.37% of the global zone's total virtual memory.
- B. The network is being utilized 100% with no physical bandwidth remaining.
- C. dbzone is using 0.21% of the total CPU resource available in the zone's processor set.
- D. dbzone is using 5.48% of the total physical memory that has been allocated to the zone.
- E. dbzone is using 0.21% of the global zone's total CPU.
Answer: C,D
Explanation:
Explanation/Reference:
Explanation:
A: %PART
The amount of cpu used as a percentage of the total cpu in a processor-set to which the zone is bound. A zone can only have processes bound to multiple processor sets if it is the global zone, or if psrset(1m) psets are used. If multiple binding are found for a zone, it's %PART is the fraction used of all bound psets.
For [total] and [system], %PART is the percent used of all cpus on the system.
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.
NEW QUESTION # 160
You need to know the IP address configured on interface net3, and that the interface is up. Which command confirms these?
- A. ipadm show-if
- B. ipadm up-addr
- C. ipadm show-addr
- D. ipadm refresh-addr
- E. ipadm show-addrprop
- F. ipadm enable-if
Answer: C
Explanation:
Explanation/Reference:
Explanation:
Show address information, either for the given addrobj or all the address objects configured on the specified interface, including the address objects that are only in the persistent configuration.
State can be: disabled, down, duplicate, inaccessible, ok, tentative
Example:
# ipadm show-addr
ADDROBJ TYPE STATE ADDR
lo0/v4 static ok 127.0.0.1/8
lo0/v6 static ok ::1/128
NEW QUESTION # 161
Which three files must be edited in order to set up logging of all failed login attempts?
- A. /etc/syslog.conf
- B. /var/adm/authlog
- C. /var/adm/loginlog
- D. /etc/default/login
Answer: A,B,D
Explanation:
How to Monitor All Failed Login Attempts
This procedure captures in a syslog file all failed login attempts.
Assume the Primary Administrator role, or become superuser.
1. Assume the Primary Administrator role, or become superuser.
2. (C) Set up the /etc/default/login file with the desired values for SYSLOG and SYSLOG_FAILED_LOGINS
3. (A) Create a file with the correct permissions to hold the logging information.
Create the authlog file in the /var/adm directory.
4. (B) Edit the syslog.conf file to log failed password attempts.
NEW QUESTION # 162
A user jack,using a bash shell,requests a directory listing as follows:
Which three statements are correct?
- A. The pattern dir*b? will expand to dirabc.
- B. The pattern dir*a will expand to dira diraa.
- C. The pattern dir*a will expand to diraa.
- D. The pattern dir? will expand to dira dirb dirc.
- E. The pattern dir*b? will expand to dirb dirabc.
Answer: A,B,D
Explanation:
A: dir followed by a single letter.
C: dir followed by any characters ending with a.
D: dir followed by any characters,then character b,then one single character.
only dirabc matches
NEW QUESTION # 163
Review the storage pool information:
Choose the correct procedure to repair this storage pool.
- A. Shut the system down, replace disk c3t3d0, and boot the system. When the system is booted execute the zpool online pool1 command.
- B. Shut the system down, replace disk c3t3d0, and boot the system. When the system is booted, execute the zpool replace pool1 c3t3d0 c3t3d0 command.
- C. Shut the system down, replace disk c3t3d0, and boot the system. When the system is booted, execute the zpool replace pool1 c3t3d0 command.
- D. Shut the system down, replace disk c3t3d0, and boot the system. When the system is booted, execute the zpool clear pool1 command.
Answer: C
Explanation:
Explanation/Reference:
Explanation:
You might need to replace a disk in the root pool for the following reasons:
The root pool is too small and you want to replace it with a larger disk The root pool disk is failing. In a non-redundant pool, if the disk is failing so that the system won't boot, you'll need to boot from an alternate media, such as a CD or the network, before you replace the root pool disk.
In a mirrored root pool configuration, you might be able to attempt a disk replacement without having to boot from alternate media. You can replace a failed disk by using the zpool replace command.
Some hardware requires that you offline and unconfigure a disk before attempting the zpool replace operation to replace a failed disk.
For example:
# zpool offline rpool c1t0d0s0
# cfgadm -c unconfigure c1::dsk/c1t0d0
<Physically remove failed disk c1t0d0>
<Physically insert replacement disk c1t0d0>
# cfgadm -c configure c1::dsk/c1t0d0
# zpool replace rpool c1t0d0s0
# zpool online rpool c1t0d0s0
# zpool status rpool
<Let disk resilver before installing the boot blocks>
SPARC# installboot -F zfs /usr/platform/`uname -i`/lib/fs/zfs/bootblk /dev/rdsk/c1t0d0s0 x86# installgrub /boot/grub/stage1 /boot/grub/stage2 /dev/rdsk/c1t9d0s0
NEW QUESTION # 164
The default publisher on your system is:
You want to update the Oracle Solaris 11 environment on your system, but you are not able to connect this system to the Internet to access the default Oracle repository. A repository has been created on your local network and is named http://server1.example.com.
Which command would you choose to connect your system to the local repository?
- A. pkg set-publisher to set the stickiness on the http://server1.example.com publisher and unset stickiness for
http://pkg.oracle.com/solaris/release - B. pkg set-publisher to set the origin for the publisher
- C. pkg add-publisher to add the new publisher
- D. pkg publisher to specify the new publisher
Answer: B
Explanation:
Solaris 11 Express makes it pretty easy to set up a local copy of the repository.
A common reason folks need access to a local repository is because their system is not connected to the Internet.
Tthe pkg set-publisher command can be used to for example add a publisher or to enable or disable a publisher.
Note: Example Adding a Publisher
Use the -g option to specify the publisher origin URI.
# pkg set-publisher -g http://pkg.example.com/release example.com
Example Specifying the Preferred Publisher
Use the -P option to specify a publisher as the preferred publisher. The specified publisher moves to the top of the search order. You can specify the -P option when you add a publisher or you can modify an existing publisher.
# pkg set-publisher -P example.com
Example Enabling or Disabling a Publisher
Use the -d option to disable a publisher. The preferred publisher cannot be disabled. A disabled publisher is not used in package operations such as list and install. You can modify the properties of a disabled publishers.
Use the -e option to enable a publisher.
# pkg set-publisher -d example2.com
NEW QUESTION # 165
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