Oracle 1Z0-821 Online Practice Questions and Exam Preparation

Oracle 1Z0-821 Online Questions & Answers

• Question 1:

  You are logged in as root to a newly installed Solaris 11 system. You issue the command useradd -d, and then examine the /usr/sadm/defadduser file. This file includes the entry defshell=/bin/sh. Which shell will now be the default for the next account created?

  A. bash shell
  B. C shell
  C. korn shod
  D. bourne shell
  A. bash shell

  ---

  Oracle Solaris 11 introduces user environment and command-line argument changes that include the following:

  *

  Shell changes - The default shell, /bin/sh, is now linked to ksh93. The default user shell is the Bourne-again (bash) shell.

  *

  The legacy Bourne shell is available as /usr/sunos/bin/sh.

  *

  The legacy ksh88 is available as /usr/sunos/bin/ksh from the shell/ksh88 package.

  *

  Korn shell compatibility information is available in /usr/share/doc/ksh/COMPATIBILITY.

• Question 2:

  Which two accurately describe the Solaris IPS repository?

  A. It contains a collection of operating system patches.
  B. It contains a collection of software packages.
  C. All packages within an IPS package repository reside in a catalog.
  D. It is an ISO image of the Solaris installation media.
  E. The packages in a catalog are associated with a specific publisher.
  B. It contains a collection of software packages.
  E. The packages in a catalog are associated with a specific publisher.

  ---

  Image Packaging System (IPS) is a new network based package management system included in Oracle Solaris 11. It provides a framework for complete software lifecycle management such as installation, upgrade and removal of software packages. IPS also enables you to create your own software packages, create and manage package repositories, and mirror existing package repositories.

  Oracle Solaris software is distributed in IPS packages. IPS packages are stored in IPS package repositories, which are populated by IPS publishers.

  E: The following command displays property information about the local repository.

  $ pkgrepo get -s /export/repoSolaris11

  SECTION PROPERTY VALUE publisher prefix solaris repository description This\ repository\ serves\ a\ copy\ of\ the\ Oracle\ Solaris\ 11\ Build\ 175b\ Package\ Repository. repository name Oracle\ Solaris\ 11\ Build\ 175b\ Package\

  Repository repository version 4

  The value of the publisher prefix specifies that solaris is to be used in the following cases:

  When more than one publisher's packages are present and no publisher is specified in the package name in the pkg command When packages are published to the repository and no publisher is specified.

• Question 3:

  You have already generated a 256-bit AES raw key and named the keystore file /mykey. You need to use the key to create an encrypted file system. Which command should you use to create a ZFS encrypted file system named pool1/encrypt using the /mykey keystore?

  A. zfs create - o encryption = /mykey pool1/encrypt
  B. zfs create - o encryption = 256-ccm - o keysource = raw, file : ///my key pool1/encrypt
  C. zfs create - o encryption = AES keysource = /mykey pool1/encrypt
  D. zfs create - o encryption = on keystore = /mykey pool1/encrypt
  B. zfs create - o encryption = 256-ccm - o keysource = raw, file : ///my key pool1/encrypt

  ---

  Example: Encrypting a ZFS File System by Using a Raw Key

  In the following example, an aes-256-ccm encryption key is generated by using the pktool command and is written to a file, /cindykey.file.

  # pktool genkey keystore=file outkey=/cindykey.file keytype=aes keylen=256 Then, the /cindykey.file is specified when the tank/home/cindy file system is created.

  # zfs create -o encryption=aes-256-ccm -o keysource=raw, file:///cindykey.file tank/home/cindys

• Question 4:

  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
  A. storage-server

  ---

  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.

• Question 5:

  Consider the following rule file for use with the Basic Audit Reporting Tool (BART). CHECK all

  IGNORE dirmtime

  /etc/security

  /etc/notices

  IGNORE contents

  /export/home

  IGNORE mtime size contents

  /var

  CHECK

  You are using BART to detect inappropriate changes to the file system.

  Identify the two correct statements describing the attributes recorded.

  A. /var/dhcp Attribute: size uid gid mode acl
  B. /etc/hosts Attributes: size uid gid mode acl intime dest
  C. /var/spool/mqueue Attribute: size uid gid mode acl dirmtime
  D. /etc/security/exec_attr Attribute: size uid mode acl mtime devnode
  E. /export/home/kate/.profile Attributes: uid gid mode acl dirmtime
  F. /export/home/rick/.profile Attributes: size uid gid mode acl mtime contents
  D. /etc/security/exec_attr Attribute: size uid mode acl mtime devnode
  F. /export/home/rick/.profile Attributes: size uid gid mode acl mtime contents

  ---

  D: According to line /etc/security

  F: According to line /export/home Not E: According to line IGNORE dirmtime Note: In default mode, the bart compare command, as shown in the following example, checks all the files installed on the system, with the exception of modified directory timestamps (dirmtime):

  CHECK all IGNORE dirmtime Note 2: The Basic Audit Reporting Tool (BART) feature of Oracle Solaris enables you to comprehensively validate systems by performing file-level checks of a system over time. By creating BART manifests, you can easily and reliably gather information about the components of the software stack that is installed on deployed systems.

  BART is a useful tool for integrity management on one system or on a network of systems.

• Question 6:

  You need to configure an ISCSI target device on your x86 based Oracle Solaris II system. While configuring the iSCSI device, the following error is displayed: bash: stmfadm: command not found

  Which option describes the solution to the problem?

  A. The COMSTAR feature is not supported on the x86 platform. The feature is supported only on the SPARC platform.
  B. Use the iscsitadm command on the x86 platform when configuring an iSCSI target.
  C. Install the storage-server group package on this system.
  D. Start the iSCSI target daemon on this system.
  C. Install the storage-server group package on this system.

  ---

  STMF ?Manages transactions, such as context and resources for Small Computer System Interface (SCSI) command execution, and tracking logical unit and port providers. STMF also handles logical unit mappings, allocating memory, recovering failed operations, enumeration, and other necessary functions of an I/O stack. STMF is controlled by stmfadm, and stmfadm is the majority of the commands you will be using to administer COMSTAR (COmmon Multiprotocl Scsi TARget). Install the packages you need for COMSTAR with iSCSI and reboot:

  # pfexec pkg install storage-server # pfexec pkg install SUNWiscsit # shutdown -y -i6 -g0

  Note: You can set up and configure a COMSTAR Internet SCSI (iSCSI) target and make it available over the network. The iSCSI features can work over a normal Internet connection (such as Ethernet) using the standard iSCSI protocol. The iSCSI protocol also provides naming and discovery services, authentication services using CHAP and RADIUS, and centralized management through iSNS.

  The COMSTAR target mode framework runs as the stmf service. By default, the service is disabled. You must enable the service to use COMSTAR functionality. You can identify the service with the svcs command. If you have not rebooted the server since installing the group/feature/storage-server package, the service might not be enabled correctly.

• Question 7:

  Examine this command and its output: $ zfs list -r -t all tank Name USED AVAIL REFER MOUNTPOINT tank 2.41G 2.43G 32K /tank

  tank/database 2.41G 2.43G 2.41G /tank/database

  tank/[email protected] 20K - 2.00G ?

  Next you execute:

  # zfs destroy tank/database

  Which statement is true about the result of executing this command?

  A. It destroys the tank/database dataset.
  B. It destroys tank/database and all descendant datasets.
  C. It fails because the tank/[email protected] snapshot depends on the tank/database dataset.
  D. It fails because the tank/[email protected] clone depends on the tank/database dataset.
  E. It fails because the tank/database data set is not empty.
  C. It fails because the tank/[email protected] snapshot depends on the tank/database dataset.

• Question 8:

  Which five statements describe options available for installing the Oracle Solaris 11operating system using the installation media?

  A. You can perform a text or LiveCD installation locally or over the network.
  B. The text Installer does not install the GNOME desktop. The GNOME desktop package must he added after you have installed the operating system.
  C. The LiveCD Installation cannot be used to install multiple instances of Oracle Solaris.
  D. 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.
  E. The LiveCD Installer is for x86 platforms only.
  F. The GUI installer cannot be used to upgrade your operating system from Solaris 10.
  G. 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.
  H. The LiveCD installer can be used for SPARC or x86 platforms.
  A. You can perform a text or LiveCD installation locally or over the network.
  B. The text Installer does not install the GNOME desktop. The GNOME desktop package must he added after you have installed the operating system.
  D. 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.
  F. The GUI installer cannot be used to upgrade your operating system from Solaris 10.
  H. The LiveCD installer can be used for SPARC or x86 platforms.

  ---

  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.

• Question 9:

  View the Exhibit and review the zpool and ZFS configuration information from your system.

  

  Identify the correct procedure for breaking the /prod_data mirror, removing c4t0d0 and c4t2d0, and making the data on c4t0d0and c4t2d0 accessible under the dev_data mount point.

  A. zpool split pool1 pool2 c4t0d0 c4t2d0zpool import pool2zfs set mountpoint = /dev_data pool2/prod_data
  B. zpool detach pool1 pool2zpool attach pool2zfs set mountpoint=/dev_data pool2/prod_data
  C. zpool split pool1/prod_data -n pool2/dev_datazfs set mountpoint = /dev_data pool2/prod_data
  D. zpool split pool1 pool2 c4t0d0 c4t2d0zpool import pool2
  D. zpool split pool1 pool2 c4t0d0 c4t2d0zpool import pool2

  ---

  In this Solaris release, you can use the zpool split command to split a mirrored storage pool, which detaches a disk or disks in the original mirrored pool to create another identical pool. After the split operation, import the new pool.

• Question 10:

  User jack on host solaris attempts to use ssh to log in to host oracle and receives this message:

  jack@solaris:~$ ssh oracle

  ssh: connect to host oracle port 22: connection refused

  What is the problem?

  A. Host oracle does not have a valid host public key.
  B. Host oracle does not have a valid host private key.
  C. Host solaris does not have a valid host public key.
  D. Host does not have a valid host private key.
  E. Host solaris is not configured for host-based authentication.
  F. Host oracle is not configured for host-based authentication.
  G. Host oracle is not running the ssh service.
  H. Host solaris is not running the ssh service.
  G. Host oracle is not running the ssh service.

  ---

  The host he is trying to connect to (oracle) is not running the required service (ssh).