All About Breathing 1Z0-821 Dumps

NEW QUESTION 1
You are attempting to edit your crontab file in the bash shell. Instead of getting your usual vi interface, you are presented with an unfamiliar interface. In order to have your editor of choice-vi- what command must you type after exiting the unfamiliar editor?

• A. EDITOR=vi
• B. crontab=vi
• C. crontab – e vi
• D. env

Answer: A

Explanation:
Set the EDITOR variable to vi.
Commands like `crontab -e` will use ed per default. If you'd like to use some better editor (like vi) you can use the environment variable EDITOR:
# EDITOR=vi; crontab –e will open the users crontab in vi. Of course you can set this variable permanently.
Incorrect answers
C: -e Edits a copy of the current user's crontab file, or creates an empty file to edit if crontab does not exist. When editing is complete, the file is installed as the user's crontab file. If a username is given, the specified user's crontab file is edited, rather than the current user's crontab file; this can only be done by a user with the solaris.jobs.admin authorization. The environment variable EDITOR determines which editor is invoked with the -e option. The default editor is ed(1). All crontab jobs should be submitted using crontab. Do not add jobs by just editing the crontab file, because cron is not aware of changes made this way.

NEW QUESTION 2
Which two statements are true concerning the creation of user accounts by using the useradd command?

• A. By default, it will create the user's home directory.
• B. New user accounts are unlocked but must change their password at their first login.
• C. New user accounts are in a pending activation state until a password is assigned to them.
• D. By default, a new group will be added for each new user account.
• E. By default, the UID of a new user account will be the next available number above the highest number currently assigned.
• F. By default, the UID of a new user account with be the lowest available unused number for nonsystem accounts.

Answer: CE

NEW QUESTION 3
Before booting testzone, a non-global zone, you want to connect to the zone's console so that you can watch the boot process.
Choose the command used xo connect to testzone's console.

• A. zoneadm – C testzone
• B. zoneadm – console testzone
• C. zlogin – z testzone console
• D. zlogin – z testzone – C
• E. zlogin – C testzone
• F. zoneadm – z testzone – C

Answer: E

NEW QUESTION 4
Oracle Solaris 11 kernel encounters a fatal error, and it results in a system panic.
What type of file does this generate?

• A. a.out
• B. objdump
• C. core dump
• D. tape dump
• E. crash dump

Answer: C

Explanation:
A kernel panic is a type of error that occurs when the core (kernel) of an operating system receives an instruction in an unexpected format or when it fails to handle properly. A kernel panic can also follow when the operating system can’t recover from a different type of error. A kernel panic can be caused by damaged or incompatible software or, more rarely, damaged or incompatible hardware.
When a server kernel panics it abruptly halts all normal system operations. Usually, a kernel process named panic() outputs an error message to the console and stores debugging information in nonvolitile memory to be written to a crash log file upon restarting the computer. Saving the memory contents of the core and associated debugging information is called a “core dump.”

NEW QUESTION 5
When upgrading an existing system from Solaris 11 Express to Oracle Solaris 11, what happens to the datalink names?

• A. They follow the default naming convention for the newly installed version.
• B. They maintain their names.
• C. They are called eth#.
• D. They are called el00g#.
• E. They are left unnamed, to avoid conflicts, and need to be renamed after the installation process is complete.

Answer: A

Explanation:
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
Note: There is no upgrade path from Oracle Solaris 10 to Oracle Solaris 11. You must perform a fresh installation.

NEW QUESTION 6
You are attempting to troubleshoot an event that should have made an entry into the messages log. This event happened about two weeks ago. Which file should you look at
first?

• A. /var/adm/messages
• B. /var/adm/messages.0
• C. /var /adm/messagas.1
• D. /var/adm/messages.2
• E. /var/adm/messages.3

Answer: A

Explanation:
The /var/adm/messages is the file to which all the messages printed on the console are logged to by the Operating System. This helps to track back check the console messages to troubleshoot any issues on the system.
Syslog daemon also writes to this /var/adm/messages file.
The /var/adm/messages file monitored and managed by newsyslog and its configuration file is /usr/lib/newsyslog.
This script runs as the roots cron job everyday, checks the /var/adm/messages file and copies/moves it to /var/adm/messages.0, 1, 2, 3, 4, 5, 6, 7. In other words, it does the Log Rotation for the /var/adm/messages.
In an event the /var file system is running out of space, these files needs to checked and can be removed (not the actual /var/adm/messages itself) to free up space on the file system.
However, care has to be taken, if you decide to empty the /var/adm/messages itself for any reason. This process is called Truncation.
SOLARIS SYSTEM ADMIN TIPS, /var/adm/messages

NEW QUESTION 7
Which two options are characteristics of a fast reboot?

• A. A fast reboot bypasses grub.
• B. A fast reboot cannot be used after a system panic on the x86 platform.
• C. A fast reboot can only be executed on the SPARC platform when the config/fastreboot_default property for the svc:/system/boot-config:default service is set to true.
• D. A fast reboot uses an in-kernel boot loader to load the kernel into memory.
• E. A fast reboot is the default on all platforms.

Answer: CD

Explanation:
C: To change the default behavior of the Fast Reboot feature on the SPARC platform, so that a fast reboot is automatically performed when the system reboots, see below.
The following example shows how to set the property's value to true on the SPARC platform, so that a fast reboot is initiated by default:
# svccfg -s "system/boot-config:default" setprop config/fastreboot_default=true
# svcadm refresh svc:/system/boot-config:default
D: Fast Reboot implements an in-kernel boot loader that loads the kernel into memory and then switches to that kernel.
The firmware and boot loader processes are bypassed, which enables the system to reboot within seconds.
The Fast Reboot feature is managed by SMF and implemented through a boot configuration service, svc:/system/boot-config. The boot-config service provides a means for setting or changing the default boot configuration parameters. When the config/fastreboot_default property is set to true, the system performs a fast reboot automatically, without the need to use the reboot -f command. This property's value is set to true on the x86 platform. For task-related information, including how to change the default behavior of Fast Reboot on the SPARC platform, see Accelerating the Reboot Process on an x86 Based System.
Note: One new feature, called Fast Reboot, will allow the system to boot up without doing the routine set of hardware checks, a move that can make system boot times up to two- and-a-half times faster, Oracle claimed. This feature can be handy in that an administrator applying a patch or software update across thousands of Solaris deployments can reboot them all the more quickly.

NEW QUESTION 8
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 second instance of the package repository server to run as a read writable mirror.
• 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 clone of the primary repository server.
• E. Deploy a package repository locally on each client.

Answer: A

NEW QUESTION 9
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?

• A. The solaris-1 boot environment is not bootable.
• B. The solaris-1 boot environment is incomplete.
• C. The solaris-1 boot environment was created automatically when the non global zone was created.
• D. The solaris-1 boot environment was created in the non-global zone using the beadm create command.
• E. The solaris-1 boot environment is associated with a non active global zone boot environment.

Answer: AE

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.
http://docs.oracle.com/cd/E23824_01/html/E21801/unbootable.html#scrolltoc

NEW QUESTION 10
Select the two statements that correctly describe the operation of NWAM.

• A. If a location is explicitly enabled, it remains active until explicitly changed.
• B. Wireless security keys can be configured by using the nwammgr command.
• C. NWAM stores profile information in /etc/ipadm/ipadm.conf and /etc/dladm/datalink.conf.
• D. Multiple locations may be automatically activated in systems with multiple network interface cards.
• E. Interface NCU Properties "float" and are automatically attached to the highest priority Link NCU Property.
• F. If the DefaultFixed NCP is enabled, persistent configuration, stored in /etc/ipadm.conf and /etc/dladm/datalink.conf is used.

Answer: AD

Explanation:
A: Conditional and system locations can be manually activated, which means that the location remains active until explicitly disabled.
D: A location comprises certain elements of a network configuration, for example a name service and firewall settings, that are applied together, when required. You can create multiple locations for various uses. For example, one location can be used when you are connected at the office by using the company intranet. Another location can be used at home when you are connected to the public Internet by using a wireless access point. Locations can be activated manually or automatically, according to environmental conditions, such as the IP address that is obtained by a network connection.

NEW QUESTION 11
You suspect a problem with the oponldap package and want to make sure that the files have not be modified or otherwise tampered with.
Which command would validate all of the files contained in the openldap package and report any problems?

• A. pkgchk openldap
• B. pkginfo openldap
• C. pkg contents openldap
• D. pkg verify openldap
• E. pkg set-property signature-policy verify

Answer: A

Explanation:
pkgchk checks the accuracy of installed files or, by using the -l option, displays information about package files. pkgchk checks the integrity of directory structures and files. Discrepancies are written to standard error along with a detailed explanation of the problem.

NEW QUESTION 12
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 hasn't been enabled yet.
• B. The net3 vnic hasn't been created.
• C. The net3/v4 ip object hasn't been configured.
• D. The net3 interface is not attached to a NIC or etherstub.

Answer: C

Explanation:
The following command marks the address object net1/v4a up that was previously marked
down.
# ipadm up-addr net1/v4a

NEW QUESTION 13
This iron is displayed on the desktop of a laptop computer, which is running Oracle Solaris 11.

Which two statements describe the Information conveyed by this Icon?

• A. NWAM is disabled.
• B. NWAM is automatically configuring the network.
• C. The wireless network card is manually configured and operational.
• D. The wireless network card is manually configured but not operational.
• E. The wireless network card is automatically configured and operational.
• F. The wireless network card is automatically configured but not operational.

Answer: BC

Explanation:
B: The Network Status notification icon is only displayed on the desktop if you are using NWAM to automatically configure your network.
C: All online (Wireless)
Indicates all manually enabled connections in the enabled network profile are online and that the required number of connections in the enabled profile group (if such a group exists) are online. The required number is the same as those described for the All online (Wired) status.
Note that at least one online connection is wireless.

NEW QUESTION 14
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. It is not possible to make a script executable without using the chmod command.
• B. umask value of 0002 set in /etc/profile
• C. umask value of 0002 set in /export/home/jack/.bashrc
• D. umask value of 0722 set in /etc/profile
• E. umask value of 0722 set In /export/home/jack/.bashrc

Answer: B

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).
1. The default umask 002 used for normal user. With this mask default directory permissions are 775 and default file permissions are 664.
2. The default umask for the root user is 022 result into default directory permissions are 755 and default file permissions are 644.
3. For directories, the base permissions are (rwxrwxrwx) 0777 and for files they are 0666 (rw-rw-rw).
In short,
1. A umask of 022 allows only you to write data, but anyone can read data.
2. A umask of 077 is good for a completely private system. No other user can read or write your data if umask is set to 077.
3. A umask of 002 is good when you share data with other users in the same group. Members of your group can create and modify data files; those outside your group can read data file, but cannot modify it. Set your umask to 007 to completely exclude users who are not group members.

NEW QUESTION 15
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. $SHELL
• D. the PID for the current shell

Answer: C

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 16
View the following information for a software package:

Which command would you use to display this information for a software package that is not currently installed on your system?

• A. pkg list gzip
• B. pkg info -r gzip
• C. pkg search –1 gzip
• D. pkg verify –v gzip
• E. pkg contents gzip

Answer: B

Explanation:
By default, the pkg info command only lists information about installed packages on the system; however, we can use a similar command to look up information about uninstalled packages, as shown in here:
Example:
Listing Information About an Uninstalled Package
# pkg info -r php-52 Name: web/php-52 Summary: PHP Server 5.2
Description: PHP Server 5.2 Category: Development/PHP State: Not Installed Publisher: solaris
Version: 5.2.17
Build Release: 5.11
Branch: 0.175.0.0.0.1.530
Packaging Date: Wed Oct 12 14:01:41 2011
Size: 44.47 MB
FMRI: pkg://solaris/web/php-52@5.2.17, 5.11-0.175.0.0.0.1.530:20111012T140141Z
Note: pkg info command displays information about packages in a human-readable form. Multiple FMRI patterns may be specified; with no patterns, display information on all
installed packages in the image.
With -l, use the data available from locally installed packages. This is the default.
With -r, retrieve the data from the repositories of the image's configured publishers. Note that you must specify one or more package patterns in this case.

NEW QUESTION 17
Your server has a ZFS storage pool that is configured as follows:

The following partition scheme is used for every disk drive in pool1:

Which two are true regarding the ZFS storage pool?

• A. The data on c3t3d0 is duplicated on c3t4do.
• B. The data is striped across disks c3t3d0 and c3t4do and mirrored across vdevs mirror-0 and mirror-1.
• C. The storage pool is 146 GB total size (rounded to the nearest GB).
• D. The storage pool is 584 G8 total size (rounded to the nearest GB).
• E. The storage pool is 292 GB total size (rounded to the nearest GB).

Answer: AE

NEW QUESTION 18
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 publisher to specify the new publisher
• B. pkg set-publisher to set the stickiness on the http://server1.example.com publisher and unset stickiness for http://pkg.oracle.com/solaris/release
• C. pkg add-publisher to add the new publisher
• D. pkg set-publisher to set the origin for the publisher

Answer: D

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 19
You are installing the Solaris 11 OE by using the Interactive Text Installer. You have selected the option to automatically configure the primary network controller. Which three items will automatically be configured as a result of this selection?

• A. The IP address.
• B. The name service.
• C. The time zone.
• D. A default user account.
• E. The terminal type.
• F. The root password.
• G. The host name.

Answer: ABC

Explanation:
IP address and name service (such as a DNS server) are provided by the DHCP server.

NEW QUESTION 20
Which best describes the svc:/system/boot-config service?

• A. It is used to change the milestone on a system.
• B. It is used to set the default run level of the system.
• C. It provides the parameters used to set the system to automatically perform a fast or slow reboot.
• D. When the service is enabled, the system performs a fast reboot by default; when it is disable the system performs a slow reboot by default.

Answer: C

Explanation:
Starting with the Oracle Solaris 11 Express release, Fast Reboot is supported on the SPARC platform, as well as the x86 platform. On both platforms, this feature is controlled by the SMF and implemented through a boot configuration service, svc:/system/boot- config. The boot-config service provides a means for setting or changing the default boot configuration parameters.
The fastreboot_default property of the boot-config service enables an automatic fast reboot of the system when either the reboot or the init 6 command is used. When the config/fastreboot_default property is set to true the system automatically performs a fast reboot, without the need to use the reboot -f command. By default, this property's value is set to false on the SPARC platform and to true on the x86 platform.

NEW QUESTION 21
You want to configure an iSCSI target device on your system.
Select the group package required to install this functionality on your system.

• A. storage-server
• B. solaris-small-server
• C. storage-avs
• D. storage-nas

Answer: A

Explanation:
How to Create an iSCSI LUN
The disk volume provided by the server is referred to as the target. When the LUN is associated with an iSCSI target, it can be accessed by an iSCSI initiator.
The following tasks are completed on the system that is providing the storage device.
1. Install the COMSTAR storage server software. target# pkg install storage-server
Etc.

NEW QUESTION 22
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