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1Z0-821 Exam Brain Dumps - Study Notes and Theory
NEW QUESTION # 88
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.
Identify two requirements for using AI.
- A. The minimum requirement to operate as an AI install server is 1 GB of memory.
- B. If two client machines have different architectures and need to be installed with the same version of the Oracle Solaris 11 OS, then you should create two AI manifests and a single install service.
- C. You can create only one manifest per install service. If you need more than one manifest, you should create multiple install services.
- D. You should set up DHCP. The DHCP server and AI install server can be the same machine or two different machines.
Answer: B,D
Explanation:
A: An automated installation of a client over the network consists of the following
high-level steps:
Step 1. The client system boots over the network and gets its network configuration and the
location of the install server from the DHCP server.
Step 2: The install server provides a boot image to the client.
Etc.
D: 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.
NEW QUESTION # 89
Which two capabilities are provided by the OpenBoot PROM?
- A. hardware testing and initialization
- B. a command to safely shut down the system
- C. starting the GRUB loader
- D. booting from a disk or network
Answer: A,D
Explanation:
OpenBoot firmware is executed immediately after you turn on your system. The primary tasks of OpenBoot firmware are to:
*Test and initialize the system hardware (B)
*Determine the hardware configuration *Boot the operating system from either a mass storage device or from a network (C) *Provide interactive debugging facilities for testing hardware and software
Reference: OpenBoot 4.x Command Reference Manual
NEW QUESTION # 90
You are installing the Solaris 11 Operation System by using the Text Installer. A panel prompts you to create a root password and a user account.
Which four describe your options for completing this panel of the Installation?
- A. If you provide a username, that user is assigned the root role.
- B. If you do not provide a username, root is an account rather than a role and is set to expire immediately.
- C. The root password must be set and cannot be blank.
- D. The root password can be left blank.
- E. If you provide a username, root is an account rather than a role and is set to expire immediately.
- F. If you provide a username, that user is given root privileges.
- G. Creating a user account is optional.
Answer: A,B,C,G
Explanation:
Explanation/Reference:
Explanation:
A: You are not required to create a user account.
B: You must create a root password.
D: If you create a user account in this panel, you need to provide both the user's password and a root password.
In this case, root will be a role assigned to the user.
G: If you do not create a user account, you still need to provide a root password.
In this case, root will be a regular user.
NEW QUESTION # 91
How are operating system updates distributed in the Oracle Solaris 11 environment?
- A. Software updates are published as packages to a repository. All software packages are then updated manually from the command line using the pkg command.
- B. Updates are only available to customers with an active support contract. The updates are distributed through the My Oracle Support web portal and installed in a central location. All software packages are then updated manually from the command line using the smpatch command.
- C. Patches are download from http: //support.oracle.com either automatically or manually. All software packages are then updated manually from the command line using the smpatch or patchadd commands.
- D. Software updates, published as packages to an OS image. All software packages are then updated manually from the command line using the pkg command.
Answer: A
Explanation:
* Updating all of the packages on your installed system - To update all of the packages on your system that have available updates, use the pkg update command, as follows:
# pkg update Running this command updates packages that you might not otherwise consider updating, for example, kernel components and other low-level system packages.
*Adding or updating individual packages - To add individual software packages, use the pkg
install command. Any dependent packages are also updated at the same time.
*install package updates that deliver fixes- A pkg update operation might include bug fixes, so the operation is similar to applying a specific patch or patches in previous Oracle Solaris releases.
Note: The IPS interfaces first check for updates for currently installed packages before retrieving them via the network. By default, interfaces check repository catalogs in the following locations:
*The default installation repository at pkg.oracle.com/solaris/release.
*The support repository in My Oracle Support. This repository is restricted to users with Oracle Solaris 11 Express support contracts, and it contains packages with the latest bug fixes. For this reason, a support contract must be purchased for production deployments.
Reference: Updating the Software on Your Oracle Solaris 11 System
NEW QUESTION # 92
Which command would you use from the bash shell to determine the total amount of physical memory installed in your Solaris system (x86 and SPARC)?
- A. uname -a
- B. sysdef|grep-imemory
- C. vmstat
- D. prtconf|grep-imemory
- E. prtdiag|grep-imemory
Answer: D
Explanation:
The prtconf command prints the system configuration information. The output includes the total amount of memory, and the configuration of system peripherals formatted as a device tree.
If a device path is specified on the command line for those command options that can take a device path, prtconf will only display information for that device node.
Reference: man prtconf
NEW QUESTION # 93
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?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
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.
NEW QUESTION # 94
Which two capabilities are provided by the OpenBoot PROM?
- A. hardware testing and initialization
- B. a command to safely shut down the system
- C. starting the GRUB loader
- D. booting from a disk or network
Answer: A,D
Explanation:
OpenBoot firmware is executed immediately after you turn on your system. The primary tasks of OpenBoot firmware are to:
*Test and initialize the system hardware (B)
*Determine the hardware configuration *Boot the operating system from either a mass storage device or from a network (C) *Provide interactive debugging facilities for testing hardware and software
NEW QUESTION # 95
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 manual network configuration option was chosen during the installation of the OS.
- C. The network was not configured during the installation of the OS.
- D. The network interface is configured with a static IP address.
Answer: C
Explanation:
Only the loopback addresses are configured. No IP address is configured.
NEW QUESTION # 96
A user brian is configured to use the bash shell. His home directory is /export/home/brian, and contains a .profile and a .bashrc file.
In the -profile, there are these lines:
genius =ritchie
export genius
In the .bashrc us this line:
genius=kernighan
In /etc/profile are these lines:
genius=thompson
export genius
When brian logs in and asks for the value of genius, what will he find, and why?
- A. genius will be ritchie because .profile executes after .bashrc.
- B. genius will be ritchie, because that was the value exported in .profile.
- C. genius will be kernighan, because .bashrc executes after .profile.
- D. genius will be thompson because /etc/profile system settings always override local settings.
- E. genius will be ritchie because variable settings in .profile take precedence over variable settings in .bashrc.
Answer: E
NEW QUESTION # 97
The current ZFS configuration on server is:
You need to backup the /data file system while the file system is active.
Select the option that creates a full backup of the /data file system and stores the backup on server in the pool named backup.
- A. Zfs snapshot pool1/data@Monday | ssh system zfs recv backup/monday
- B. Mount -F nfs systemB: /backup/mntzfs snapshot pool1/data@Mondayzfs clone pool1/data@monday/mnt/Monday
- C. Mount -F nfs system: /backup / mntzfs snapshot pool/data@monday>/mnt/Monday
- D. Zfs send pool1/data@Monday | ssh system zfs recv backup/monday
Answer: A
Explanation:
Example (assuming there exists a snapshot 'tank/test@1).
Full backup
Now let's do a full initial backup from the 'tank/test@1 snapshot:
# zfs send tank/test@1 | zfs receive tank/testback
NEW QUESTION # 98
The following line is from /etc/shadow in a default Solaris 11 Installation:
jack: $5$9JFrt54$7JdwmO.F11Zt/ jFeeOhDmnw93LG7Gwd3Nd/cwCcNWFFg:0:15:30:3:::
Which two are true?
- A. The minimum lifetime for a password for account jack is 15 days.
- B. Passwords for account jack must be a minimum of 15 characters long.
- C. The password for account jack has expired.
- D. The password for account jack has 5 characters.
- E. A history of 3 prior passwords for the account jack is kept to inhibit password reuse.
Answer: A,C
Explanation:
From the content of the /etc/shadow file we get:
* username: jack
* encrypted password: $5$9JFrt54$7JdwmO.F11Zt/
jFeeOhDmnw93LG7Gwd3Nd/cwCcNWFFg
* Last password change (lastchanged): Days since Jan 1, 1970 that password was last changed: 0
* Minimum: The minimum number of days required between password changes i.e. the number of days left before the user is allowed to change his/her password: 15 Maximum: The maximum number of days the password is valid (after that user is forced to change his/her password): 30 Warn : The number of days before password is to expire that user is warned that his/her password must be changed: 3
* Inactive : The number of days after password expires that account is disabled
* Expire : days since Jan 1, 1970 that account is disabled i.e. an absolute date specifying when the login may no longer be used
NEW QUESTION # 99
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. pkill bigscript
- C. pgrep bigscript
- D. ps bigscript
Answer: C
Explanation:
Pgrep takes a process name and return a PID.
Note: pgrep looks through the currently running processes and lists the process IDs which
matches the selection criteria to stdout. All the criteria have to match. For example,
pgrep -u root sshd
will only list the processes called sshd AND owned by root.
Incorrec answers:
ps bigscript: You can't pass a name to ps, it interprets it as arguments.
NEW QUESTION # 100
To inspect network interface net3, you enter the following commands:
What problem do you suspect? Assume the user is authorized and provided the correct password.
- A. The net3 interface is not attached to a NIC or etherstub.
- B. The net3/v4 ip object hasn't been configured.
- C. The net3 vnic hasn't been created.
- D. The net3 interface hasn't been enabled yet.
Answer: B
Explanation:
Explanation/Reference:
Explanation:
The following command marks the address object net1/v4a up that was previously marked down.
# ipadm up-addr net1/v4a
NEW QUESTION # 101
You have set up the task.max-lwps resource control on your Solaris 11 system.
Which option describes how to configure the system so that syslogd notifies you when the resources control threshold value for the task.max-lwps resource has been exceeded?
- A. Use the prct1 command to set the logging of all resource control violations at the time the task.max- lwps resource control is being setup.
- B. Modify the /etc/syslog.conf file to activate system logging of all violations of task.max-lwps and then refresh then svc: /system/system-log:default service.
- C. Use the rctladm command to enable the global action on the task.max-lwpa resource control.
- D. Use the setrct1 command to set the logging of all resource control violations for the task.max-lwps resource control.
- E. Activate system logging of all violations of task.max-lwpp in the /etc/rctldm.conf file and then execute the rctladm-u command.
Answer: C
Explanation:
Explanation/Reference:
Explanation:
rctladm - display and/or modify global state of system resource controls The following command activates system logging of all violations of task.max-lwps.
# rctladm -e syslog task.max-lwps
#
NEW QUESTION # 102
You have a user that needs to use the cron tool to schedule some repetitive tasks. When the user enters the crontab -e command in a terminal window, the following error appears:
crontab: you are not authorized to use cron. Sorry
In order to troubleshoot this issue, in what directory would you start your invest
- A. /var/spool/cron
- B. /etc/cron.d
- C. /var/spool/cron/atjobs
- D. /var/spool/cron/crontable
Answer: B
Explanation:
crontab: you are not authorized to use cron. Sorry.
This message means that either the user is not listed in the cron.allow file (if the file exists), or the user is listed in the cron.deny file.
You can control access to the crontab command by using two files in the /etc/cron.d directory: cron.deny and cron.allow. These files permit only specified users to perform crontab command tasks such as creating, editing, displaying, or removing their own crontab files.
The cron.deny and cron.allow files consist of a list of user names, one user name per line.
NEW QUESTION # 103
You need to set up a local package repository to serve 75 client systems. Multiple clients will being the package repository concurrently and you need to ensure that the local repository performs very well under this heavy load, especially during package intensive operations.
Which option would ensure the best performance of the repository during package-intensive rations by multiple clients?
- A. Set up multipathing on the package repository server to distribute the network load multiple network interfaces.
- B. Deploy a package repository locally on each client.
- C. Deploy a second instance of the package repository server to run as a read-only mirror.
- D. Deploy a second instance of the package repository server to run as a read writable mirror.
- E. Deploy a second instance of the package repository server to run as a clone of the primary repository server.
Answer: A
Explanation:
Explanation/Reference:
Explanation:
NEW QUESTION # 104
View the Exhibit.
After Installing the OS, you need to verify the network interface information. Which command was used to display the network interface information in the exhibit?
- A. svcs -1 network/physical
- B. netstat -a
- C. ifconfiq -a
- D. ipadm show-addr
Answer: D
Explanation:
Explanation/Reference:
Explanation:
'ipadm show-addr' displays all the configured addresses on the system.
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 # 105
User jack makes use of the bash shell; his home directory is/export/home/jack.
What is the correct setting of umask, and where should it be set, to allow jack to create a shell script using the vi editor, that is executable by default?
- A. umask value of 0002 set in /etc/profile
- B. umask value of 0722set In /export/home/jack/.bashrc
- C. umask value of 0722 set in /etc/profile
- D. umask value of 0002 set in /export/home/jack/.bashrc
- E. It is not possible to make a script executable without using the chmod command.
Answer: A
Explanation:
The user file-creation mode mask (umask) is use to determine the file permission for newly created files. It can be used to control the default file permission for new files. It is a four-digit octal number. You can setup umask in /etc/bashrc or /etc/profile file for all users. By default most Unix distro set
it to 0022 (022) or 0002 (002). In short,
NEW QUESTION # 106
Which command should you choose to display the current parameters for the FSS scheduler?
- A. dispadmin -c FSS -g
- B. prionctl -c FSS
- C. dispadmin - c FSS
- D. priocntl -c FSS -g
Answer: A
Explanation:
Explanation/Reference:
Explanation:
The dispadmin command displays or changes process scheduler parameters while the system is running.
-c class
Specifies the class whose parameters are to be displayed or changed. Valid class values are: RT for the real-time class, TS for the time-sharing class, IA for the inter-active class, FSS for the fair-share class, and FX for the fixed-priority class. The time-sharing and inter-active classes share the same scheduler, so changes to the scheduling parameters of one will change those of the other.
-g
Gets the parameters for the specified class and writes them to the standard output.
NEW QUESTION # 107
Given:
file1 and file2 are text files.
dir1 and dir2 are directories.
Which two commands will be successful?
- A. cp file? dir1
- B. cp file1 file2 dir1
- C. cp dir1 dir1
- D. cp file. dir1
- E. cp file% dir2
- F. cp dir1 file1
Answer: A,B
Explanation:
C: Here the wildcard character ? is used (Matches any single character).
file1 and file2 will be copied into dir1
F: the two files file1 and file2 are copied into directoy dir1.
Note: cp - copy files and directories
Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.
Cp has three principal modes of operation. These modes are inferred from the type and count of arguments presented to the program upon invocation.
* When the program has two arguments of path names to files, the program copies the contents of the first file to the second file, creating the second file if necessary.
* When the program has one or more arguments of path names of files and following those an argument of a path to a directory, then the program copies each source file to the destination directory, creating any files not already existing.
* When the program's arguments are the path names to two directories, cp copies all files in the source directory to the destination directory, creating any files or directories needed.
This mode of operation requires an additional option flag, typically r, to indicate the recursive copying of directories. If the destination directory already exists, the source is copied into the destination, while a new directory is created if the destination does not exist.
NEW QUESTION # 108
......
The Oracle 1Z0-821 exam is a certification exam designed for IT professionals who want to demonstrate their knowledge and skills in Oracle Solaris 11 system administration. This exam is a part of the Oracle Certified Associate (OCA) certification track for Oracle Solaris 11 System Administrator. It is an entry-level exam that validates the candidate's ability to install, configure, and maintain the Oracle Solaris 11 operating system. The exam is comprised of 75 multiple-choice questions and the candidates are given 120 minutes to complete the exam.
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