Get 100% Passing Success With True 1Z0-821 Exam! [Nov-2021]
Oracle 1Z0-821 PDF Questions - Exceptional Practice To Oracle Solaris 11 System Administration
NEW QUESTION 92
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 clear pool1 command.
- D. Shut the system down, replace disk c3t3d0, and boot the system. When the system is booted, execute the zpool replace pool1 c3t3d0 command.
Answer: D
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
# cfgadm -c configure c1::dsk/c1t0d0
# zpool replace rpool c1t0d0s0
# zpool online rpool c1t0d0s0
# zpool status rpool\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 93
To confirm that the load balancing among aggregated links is functioning properly,you want to examine the traffic statistics on the links comprising the aggregation.
The correct command is ___________.
- A. dlstat show-link -aggr
- B. dlstat show-link -r
- C. dlstat show-phys -aggr
- D. dlstat show-aggr
- E. dlstat - aggr
Answer: D
Explanation:
dlstat show-aggr [-r | -t] [-i interval] [-p] [ -o field[,...]] [-u R|K|M|G|T|P] [link] Display per-port statistics for an aggregation.
NEW QUESTION 94
To confirm the IP addresses and netmasks have been correctly configured on the network interfaces, which command(s) should you use?
- A. ipadm show-config
- B. ipadm show-ipipadm show-mask
- C. ipadm show-if
- D. ipadm show-addr
- E. ipadmshow-addripadm show-mask
- F. ipadm show-nic
Answer: D
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.
Example: # ipadm show-addr ADDROBJ TYPE STATE ADDR lo0/v4 static ok 127.0.0.1/8 lo0/v6 static ok ::1/128
Reference: man ipadm
NEW QUESTION 95
You are currently working in both your home directory and the system directory /tmp. You are switch back and forth with full path names. Which pair of cd commands will provide you with a shortcut to switch between these two locations?
- A. cd and cd.
- B. cd ~ and cd
- C. cd ~ and cd -
- D. cd * and cd . .
Answer: C
Explanation:
In the Bourne Again,C,Korn,TC,and Z shells,the tilde (~) is used as a shortcut for
specifying your home directory.
cd -
It's the command-line equivalent of the back button (takes you to the previous directory you
were in).
Note:
To make certain that you are in your home directory,type the cd (change directory)
command. This command moves you to your home (default) directory.
NEW QUESTION 96
You are using AI to install a new system. You have added to following information to the AI manifest:
<configuration type= "zone" name= "dbzone"
source = "http://sysA.example.com/zone_cfg/zone.cfg"/>
Which statement is true with regard to the zone.cfg?
- A. It is am xml configuration file from the /etc/zone directory. It will be used as a profile for the zone. It specifies the zonename,zonepath,and other zonecfg parameters.
- B. The zone.cfg file is text file in a zonecfg export format.
- C. The zone.cfg file is an xml file in a form suitable for use as a command file for the zonecfg command.
- D. The zone.cfg file is an AI manifest that specifies how the zone is to be installed.
- E. The zone.cfg file is an SC profile with keywords that are specific for configuring a as part of the installation process.
Answer: D
Explanation:
The configuration element supports non-global zone configurations. When installing a
global zone system,the zone configurations specified in the AI manifest are used to install
non-global zones onto the system after the global zone has been installed
The configuration element has the following attributes:
type
The type of configuration to install. The only type supported by AI is zone.
name
A name given to the configuration. This name must be unique across all configuration
elements in an AI manifest. For configurations of type zone,this name is also used as the
zonename for he zone.
Source
The location from which AI downloads the configuration file for this configuration element.
The value can be an HTTP or FILE URI specification. For configurations of type zone,this
value should point to a zone configuration file as produced from the zonecfg export
command.
NEW QUESTION 97
The following information is displayed about the compress/zjp software package, which Is currently installed on this system:
NAME (PUBLISHER)VERSIONIFO
Compress/zip3.1.2-0.175.0.0.0.0.537if-
NAMEVERSIONDATECOMMENT
Compress/zip3.109 Dec 2011 04:50:38 ESTNone
Which statement describes the information that is displayed tor the compress/zip software package?
- A. This package can be updated to a new version when the new version of the package becomes available.
- B. This package cannot be downgraded to version 3.1.1.
- C. This package cannot be removed.
- D. This package can be updated to version 3.1.3 but not 3.2.
- E. This package cannot be updated.
Answer: A
Explanation:
Explanation/Reference:
Explanation:
An "f" in the F column indicates the package is frozen. If a package is frozen, you can only install or update to packages that match the frozen version.
Note: The "i" in the I column indicates that these packages are installed in this image.
Adding and Updating Oracle Solaris 11 Software Packages, Showing Package Install State Information
NEW QUESTION 98
Which two are implemented using the Internet Control Message Protocol (ICMP)?
- A. HTTP
- B. syslog
- C. telnet
- D. traceroute
- E. ping
- F. DHCP
Answer: D,E
Explanation:
The Internet Control Message Protocol (ICMP) is one of the core protocols of the Internet Protocol Suite. ICMP differs from transport protocols such as TCP and UDP in that it is not typically used to exchange data between systems, nor is it regularly employed by end-user network applications
(with the exception of some diagnostic tools like ping and traceroute).
NEW QUESTION 99
You upgraded your server to Oracle Solaris 11 and you imported zpool (pool1) that was created in Solaris 10. You need to create an encrypted ZFS file system in pool1, but first you need to make sure that your server supports ZFS encryption.
Which four statements are true for support of ZFS encryption?
- A. ZFS encryption is integrated with the ZFS command set and no additional packages need to be installed.
- B. Encryption is supported at the pool level only for every file system in the pool will be encrypted.
- C. ZFS encryption requires that the ZFS Dataset Encryption package be installed.
- D. You cannot create an encrypted file system in a zpool that was created prior to oracle Solaris11. Create a new zpool in Solaris11, create an encrypted ZFS file system in the new zpool, and move or copy the data from the existing file system into the new encrypted file system.
- E. Encryption is supported at the pool or dataset (file system) level.
- F. The encrypted file system must have been created in Oracle Solaris11. To encrypt a ZFS file system from a previous version of Solaris, upgrade the zpool and create a new encrypted ZFS file system into the encrypted ZFS file system.
- G. If you plan to create an encrypted file system in an existing zpool, the pool must be upgraded to ZFS version 21, minimum.
- H. If you plan to create an encrypted file system in an existing zpool, the zpool must be upgraded to ZFS version 30.
Answer: A,E,F,H
Explanation:
A (not H): You can use your existing storage pools as long as they are upgraded. You have the flexibility of encrypting specific file systems.
B (not E): Can I enable encryption on an existing pool?
Yes, the pool must be upgraded to pool version 30 to allow encrypted ZFS file systems and volumes.
C (not D): ZFS encryption is integrated with the ZFS command set. Like other ZFS operations, encryption operations such as key changes and rekey are performed online.
F (not G): Encryption is the process in which data is encoded for privacy and a key is needed by the data owner to access the encoded data. You can set an encryption policy when a ZFS dataset is created, but the policy cannot be changed.
NEW QUESTION 100
You are having an issue with the shutdown command. You wish to determine if the file is a script or an executable program. Which command would you use to determine this?
- A. attrib shutdown
- B. cksum shutdown
- C. od shutdown
- D. test shutdown
- E. file shutdown
Answer: E
Explanation:
The file command determines the file type file tests each argument in an attempt to classify it. There are three sets of tests,performed in this order: filesystem tests,magic tests,and language tests. The first test that succeeds causes the file type to be printed.
NEW QUESTION 101
A local repository is available on this system and you need to enable clients to access this repository via HTTP. The repository information is:
PUBLISHERTYPESTATUSURI
solarisoriginonlinehttp://sysA.example.com
Identify two of the steps that are required to make the local repository on this server available to the client via HTTP.
- A. On the client: reset the origin for the solaris publisher.
- B. On the client: set the pkg/inst_root and pkg/readonly properties for the svc:/application/server:default service enable the service.
- C. On the server: set the sharefs property on the ZFS file system containing the IPS repository.
- D. On the server: set the pkg/inst_root and pkg/readonly properties for the svc:/application/pkg/server:default service and enabled the service
- E. On the client: start the pkg.depotd process.
Answer: D,E
Explanation:
A: Configure the Repository Server Service To enable clients to access the local repository via HTTP,enable the application/pkg/server Service Management Facility (SMF) service. # svccfg -s application/pkg/server setprop pkg/inst_root=/export/repoSolaris11 # svccfg -s application/pkg/server setprop pkg/readonly=true
E: Use pkg.depotd to serve the repository to clients. Start the Repository Service Restart the pkg.depotd repository service. # svcadm refresh application/pkg/server # svcadm enable application/pkg/server To check whether the repository server is working,open a browser window on the localhost location.
NEW QUESTION 102
How are operating system updates distributed in the Oracle Solaris 11 environment?
- A. Software updates, published as packages to an OS image. 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. Software updates are published as packages to a repository. All software packages are then updated manually from the command line using the pkg command.
- D. 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.
Answer: C
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 103
A user jack,using a bash shell,requests a directory listing as follows:
Which three statements are correct?
- A. The pattern dir*a will expand to dira diraa.
- B. The pattern dir? will expand to dira dirb dirc.
- C. The pattern dir*b? will expand to dirb dirabc.
- D. The pattern dir*a will expand to diraa.
- E. The pattern dir*b? will expand to dirabc.
Answer: A,B,E
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 104
Consider the following commands:
What is displayed when this sequence of commands is executed using the bash shell?
- A. Hello, world
- B. bash: syntax error near unexpected token '| |'
- C. cat: cannot open file1: No such file or directory
- D. bash: syntax error broker pipe
- E. cat: cannot open file1: No such file or directory Hello, world
Answer: E
NEW QUESTION 105
In Oracle Solaris 11, where is the Oracle default repository located?
- A. http://www.oracle.com/Solaris/download
- B. http://pkg.oracle.com/solaris/release
- C. /cdrom/cdrom0
- D. http://localhost/solaris
- E. /var/spool/pkg
Answer: B
Explanation:
Explanation/Reference:
Explanation:
REPOSITORY DESCRIPTION
* http://pkg.oracle.com/solaris/release
The default repository for new Oracle Solaris 11 users. This repository receives updates for each new release of Oracle Solaris. Significant bug fixes, security updates, and new software may be provided at any time for users to install at Oracle's discretion.
*https://pkg.oracle.com/solaris/support
Provides bug fixes and updates. Accessible with a current support contract from Oracle.
* https://pkg.oracle.com/solaris/dev Provides the latest development updates. Accessible to users enrolled in the Oracle Solaris 11 Platinum Customer Program and approved Oracle Partners.
NEW QUESTION 106
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 interface is not attached to a NIC or etherstub.
- C. The net3/v4 ip object hasn't been configured.
- D. The net3 vnic hasn't been created.
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 107
Which three options accurately describe Oracle Solaris 11 zones?
- A. can execute zes and zpool commands (from a non-global zone)
- B. cannot have their own time zone setting
- C. are whole root type only
- D. canbe NFS servers
- E. are virtualized operating system environments, created with a single instance of the OS shared kernel
- F. are virtualized operating system environments, each with its own dedicated OS and kernel
Answer: B,D,E
Explanation:
A: Zones can use Oracle Solaris 11 products and features such as the following: Oracle Solaris ZFS encryption Network virtualization and QoS CIFS and NFS
C: Non-global zones cannot modify the system clock by default, but each zone can have a separate time zone setting.
F (not E): The Oracle Solaris Zones partitioning technology is used to virtualize operating system services and provide an isolated and secure environment for running applications. A zone is a virtualized operating system environment created within a single instance of the Oracle Solaris operating system.
NEW QUESTION 108
Choose three options that describe the features associated with a Live Media installation.
- A. installs the desktop based packages
- B. allows both automatic and manual configuration of the network
- C. does not allow the root user to log in to the system directly from the console (or any terminal)
- D. provides a "hands free" installation
- E. installs both the server-based and desktop-based package
- F. can be used to install only x86 platforms
- G. installs the server-based set of packages only
Answer: A,D,F
Explanation:
The graphical installer is officially known as the "Live Media." This means that Oracle Solaris can be booted into RAM, causing zero impact on your existing operating system.
After it is loaded, you are free to experiment with Oracle Solaris to determine whether it is something you would like to install to your system.
You can download Oracle Solaris 11 Live Media for x86, which is an approximately 800 MB image file, and use a DVD burner to create the disk, or you can use the ISO image directly in a virtual machine or through the Oracle Integrated Lights Out Manager (ILOM) Remote Console.
The Live Media is not intended for long-term use. For example, any changes that you make to the system are lost when the system is shut down. Therefore, the next logical step is to install Oracle Solaris on the system, which the Live Media makes easy by placing an Install Oracle Solaris icon right on the desktop. But before we head down that road, let's step back a bit and consider the installation options.
Note: The Live Media provides administrators with an opportunity to explore the Oracle Solaris 11 environment without installing it on a system. The system boots off the media directly allowing administrators to start the installer should they choose to install it to a system.
NEW QUESTION 109
Review the storage pool information:
Which statement describes the status of this storage pool?
- A. It is an improperly configured RAIDZ storage pool; data will be striped across three disk components, but only three drives are protected with redundancy.
- B. It is a RAIDZ storage pool and can withstand a single disk failure; data will be striped at: disk components.
- C. It is an improperly configured RAIDZ storage pool; data will be striped across four disk components, but only three drives are protected with redundancy.
- D. It is a double-parity RAIDZ storage pool and can withstand two disk failures; data will be striped across four disk components.
Answer: A
Explanation:
Explanation/Reference:
Explanation:
Device c3t6d0 is not included in the RAIDZ storage pool. The other three devices are included in the raidz pool. The data on these devices are protected.
Note: In addition to a mirrored storage pool configuration, ZFS provides a RAID-Z configuration with either single, double, or triple parity fault tolerance. Single-parity RAID-Z (raidz or raidz1) is similar to RAID-5.
Double-parity RAID-Z (raidz2) is similar to RAID-6.
NEW QUESTION 110
Select the five tasks that need to be performed on the Automated Installer (AI) install server before setting up the client.
- A. Create a local IPS repository on the AI Install server and start the repository server service,the publisher origin to the repository file.
- B. Download the text install image into the IPS repository.
- C. The DHCP server must be enabled on the install server and must provide the DHCP service for the clients.
- D. Create the AI install service. Specify the path to the AI network boot image ISO file and the path where the AI net image ISO file should be unpacked.
- E. DHCP must be available on the network for the Install server and the clients,but the install server does not need to be the DHCP server.
- F. Set up a IP address on the AI install server.
- G. Install the AI installation tools.
- H. Create the AI install service. Specify the path to the AI network boot image ISO file and the path to the IPS repository.
- I. Download the AI boot image. The image must be the same version as the Oracle Solaris OS that you plan to install on the client.
Answer: B,E,F,G,H
Explanation:
B: Configure the AI install server to use a static IP address and default route.
D: The create-service command can set up DHCP on the AI install server. If you want to set up a separate DHCP server or configure an existing DHCP server for use with AI. The DHCP server must be able to provide DNS information to the systems to be installed.
E: An automated installation of a client over the network consists of the following high-level
steps:
1.The client system boots over the network and gets its network configuration and the
location of the install server from the DHCP server.
2.The install server provides a boot image to the client.
3.Characteristics of the client determine which installation instructions and which system
configuration instructions are used to install the client.
4.The Oracle Solaris 11 OS is installed on the client,pulling packages from the package
repository specified by the installation instructions in the AI install service.
G: Install the AI tool set.
Use the installadm create-service command to create an AI install service. Give the service
a meaningful name,and specify the path where you want the service created. Specify the
source of the network boot image (net image) package or ISO file.
installadm create-service [-n svcname] [-s FMRI_or_ISO] [-d imagepath]
-d imagepath The imagepath is the location of the new install service. The install-image/solaris-autoinstall package is installed to this location,or the specified ISO file is expanded at this location.
NEW QUESTION 111
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