Oracle 1Z0-821 Online Practice Questions and Exam Preparation

Oracle 1Z0-821 Online Questions & Answers

• Question 111:

  Your server has one zone named dbzone (hat has been configured, but not yet installed). Which command would you use to view all the options that were used to configure this zone?

  A. zoneadm list –icv dbzone
  B. zones tat –c summary dbzone
  C. zonecfg –z dbzone info
  D. zonecfg –icv dbzone info
  C. zonecfg –z dbzone info

  ---

  zonecfg info

  Display information about the current configuration. If resource-type is specified, displays only information about resources of the relevant type. If any property-name value pairs are specified, displays only information about resources meeting

  the given criteria. In the resource scope, any arguments are ignored, and info displays information about the resource which is currently being added or modified.

  Note:

  zonecfg -z

  zonename. Specify the name of a zone. Zone names are case sensitive. Zone names must begin with an alphanumeric character and can contain alphanumeric characters, the underscore (_) the hyphen (-), and the dot (.). The name global

  and all names beginning with SUNW are reserved and cannot be used.

  Incorrect answer:

  A: The zoneadm utility is used to administer system zones. A zone is an application container that is maintained by the operating system runtime.

  list option:

  Display the name of the current zones, or the specified zone if indicated.

  B: No such command.

  D: no such options zonecfg -icv

• Question 112:

  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. You can create only one manifest per install service. If you need more than one manifest create multiple install services.
  B. 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.
  C. 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.
  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. The install server needs to be able to access an Oracle Solaris Image Packaging System (IPS) software package repository; the clients do not.
  F. The install server can be either an x86 machine or a SPARC machine.
  B. 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.
  E. The install server needs to be able to access an Oracle Solaris Image Packaging System (IPS) software package repository; the clients do not.
  F. The install server can be either an x86 machine or a SPARC machine.

  ---

  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.

• Question 113:

  Which two statements are true when updating Solaris 11 from one Support Respository Update (SRU) to another SRU by using the pkg update command?

  A. By default, the pkg update command automatically creates a backup Boot Environment whenever the kernel is affected by the update.
  B. By default, the pkg update command automatically creates a new Boot Environment whenever the kernel is affected by the update.
  C. The pkg update command can only be used to update to a newer SRU.
  D. The pkg update command can be used to update to a newer or older SRU.
  E. By default, the pkg update command always updates Solaris 11 to the first SRU that was released after the Current SRU.
  F. The pkg update command can only be performed while running in the single-user milestone.
  B. By default, the pkg update command automatically creates a new Boot Environment whenever the kernel is affected by the update.
  C. The pkg update command can only be used to update to a newer SRU.

• Question 114:

  You are going to create live zones on you server. Disk space is critical on this server so you need to reduce the amount of disk space required for these zones. Much of the data required for each of these zones is identical, so you want to eliminate the duplicate copies of data and store only data that is unique to each zone.

  Which two options provide a solution for eliminating the duplicate copies of data that is common between all of these zones?

  A. Create the zones by using sparse root zones.
  B. Set the dedup property to on and the dedupratio to at least 1.5 for the zpool.Create a separate ZFS file system for each zone in the zpool.
  C. Put all of the zones in the same ZFS file system and set the dedupratio property for the ZFS file system to at least 1.5.
  D. Put all of the zones in the same ZFS file system and set the dedup property for the file system to on.
  E. Put each zone in a separate ZFS file system within the same zpool. Set the dedup property to on for each ZFS file system.
  D. Put all of the zones in the same ZFS file system and set the dedup property for the file system to on.
  E. Put each zone in a separate ZFS file system within the same zpool. Set the dedup property to on for each ZFS file system.

  ---

  n Oracle Solaris 11, you can use the deduplication (dedup) property to remove redundant data from your ZFS file systems. If a file system has the dedup property enabled, duplicate data blocks are removed synchronously. The result is that only unique data is stored, and common components are shared between files.

• Question 115:

  Review the non-global zone configuration displayed below:

  

  The global zone has 1024 MB of physical memory. You need to limit the non-global zone so that it uses no more than 500 MB of the global zone's physical memory. Which option would you choose?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  E. Option E
  C. Option C

  ---

  Add a memory cap.

  zonecfg:my-zone> add capped-memory

  Set the memory cap.

  zonecfg:my-zone:capped-memory> set physical=50m

  End the memory cap specification.

  zonecfg:my-zone:capped-memory> end

• Question 116:

  Identify the Automated Installer's (AI) equivalent to jumpStart's finish scripts and sysidcfg files.

  A. Manifest files
  B. SMF system configuration profile files
  C. Installadm create - client
  D. IPS software package repository
  E. installadm create-service
  F. svccfg - s application/pkg/server setprop sysidcfg
  B. SMF system configuration profile files

  ---

  Comparing sysidcfg File Keywords to System Configuration Profile Directives The following table compares sysidcfg file keywords with example AI system configuration profile specifications.

  sysidcfg File Keyword System Configuration Profile Directives

  Etc.

• Question 117:

  Which two are user definable OpenBoot parameters that can be set in the OpenBoot PROM?

  A. IP address for the system console
  B. Host ID
  C. System date and time
  D. Default boot device
  E. Verbose hardware diagnostics
  F. Powering off the hardware
  D. Default boot device
  E. Verbose hardware diagnostics

  ---

  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

• Question 118:

  You have been tasked with creating a dedicated virtual network between two local zones within a single system. In order to isolate the network traffic from other zones on that system.

  To accomplish this, you will create__________.

  A. An ether stub
  B. A virtual router
  C. A virtual switch
  D. A virtual bridge.
  E. A virtual network interface
  F. Nothing because a virtual switch is automatically created then the virtual network interfaces are created.
  A. An ether stub

  ---

  Etherstubs are pseudo ethernet NICs which are managed by the system administrator. You can create VNICs over etherstubs instead of over physical links. VNICs over an etherstub become independent of the physical NICs in the system. With etherstubs, you can construct a private virtual network that is isolated both from the other virtual networks in the system and from the external network. For example, you want to create a network environment whose access is limited only to your company developers than to the network at large. Etherstubs can be used to create such an environment.

  Note: Oracle Solaris 11 introduces a new and powerful network stack architecture which includes:

  *

  Networking virtualization with virtual network interface cards (VNICs) and virtual switching (etherstubs)

  *

  Tight integration with zones

  *

  Network resource management - efficient and easy to manage integrated quality of service (QoS) to enforce bandwidth limit on VNICs and traffic flows

• Question 119:

  zone1 is a non-global zone that has been configured and installed.

  zone1 was taken down for maintenance, and the following command was run:

  zoneadm -z zone1 mark incomplete

  The following information is displayed when listing the zones on your system:

  

  Which task needs to be performed before you can boot zone1?

  A. The zone needs to be installed.
  B. The zone needs to be brought to the ready state.
  C. The zone needs to be uninstalled and reinstalled.
  D. The zone needs to be brought to the complete state.
  C. The zone needs to be uninstalled and reinstalled.

  ---

  If administrative changes on the system have rendered a zone unusable or inconsistent, it is possible to change the state of an installed zone to incomplete. Marking a zone incomplete is irreversible. The only action that can be taken on a zone marked incomplete is to uninstall the zone and return it to the configured state.

• Question 120:

  Given:

  file1 and file2 are text files.

  dir1 and dir2 are directories.

  Which two commands will be successful?

  A. cp dir1 dir1
  B. cp dir1 file1
  C. cp file? dir1
  D. cp file. dir1
  E. cp file% dir2
  F. cp file1 file2 dir1
  C. cp file? dir1
  F. cp file1 file2 dir1

  ---

  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.