Oracle Oracle Certifications 1Z0-820 Questions & Answers

• Question 21:

  Which two accurately describe the Image Packaging System (IPS) components? (Choose two.)

  A. Every package is represented by an FMRI, consisting of a publisher, a name, and a version, with the scheme.

  B. Every package is represented by a manifest, consisting of a publisher, a name, and a version, with the scheme.

  C. A publisher is an entity that develops and constructs packages.

  D. a repository is an entity that publishes and provides access to packages.

  Correct Answer: AC

• Question 22:

  View the Exhibit.

  

  The file came from your Automated Installer (AI) install server. The file is ____________.

  A. an AI SC profile for non-global zones

  B. the default AI config file for non-global zones

  C. the default AI manifest for non-global zones

  D. a custom AI manifest

  Correct Answer: D

  Explanation: ai_manifest

  -Automated installation manifest file format

  Synopsis /usr/share/install/ai.dtd.1 Some customizations have been made, such as the selection of specific locales. Reference: Oracle Solaris 11 Installation Man Pages

• Question 23:

  When setting up Automated Installer (AI) clients, an interactive tool can be used to generate a custom system configuration profile. The profile will specify the time zone, data and time, user and root accounts, and name services used for an AI client installation. This interactive tool will prompt you to enter the client information and an SC profile (XML) will be created.

  Which interactive tool can be used to generate this question configuration?

  A. sys-unconfig

  B. installadm set-criteria

  C. sysconfig create-profile

  D. installadm create-profile

  Correct Answer: B

  Explanation: Use the installadm set-criteria command to update the client criteria associated with an AI manifest that you already added to a service using installadm add- manifest.

  Use the installadm add-manifest command to add a custom AI manifest to an install service.

  The value of manifest is a full path and file name with .xml extension. The manifest file contains an AI manifest (installation instructions). The manifest file can also reference or embed an SC manifest (system configuration instructions).

• Question 24:

  Your task is to convert a JumpStart sysidcfg file to an Automated Installer (AI) sc_profile.xml file, using js2ai.

  Select two unsupported items that will require changes.

  A. terminal = zterms

  B. name_service-NTS+

  C. timezone=US/pacific

  D. system_locale=en_US

  E. network_interface=PRIMARY

  F. root_password=rJmvLUXM10cU

  Correct Answer: AD

  Explanation: A: terminal The js2ai tool does not perform any translation. Make sure the terminal type speciied in the sysidcfg ile is supported in Oracle Solaris 11.

  D: system_locale The js2ai tool does not perform any translation. Make sure the locale specified in the sysidcfg ile is supported in Oracle Solaris 11.

  Reference: Overview of Installation Options, Comparing sysidcfg File Keywords to SC Proile Directives

• Question 25:

  How should you permanently restrict the non-global zone testzone so that it does not use more than 20 CPU shares while it is running?

  A. While configuring the zone, add this entry: add rct1 set name = capped.cpu-shares add value (priv = privileged, limit = 20, action = none) end exit

  B. While configuring the zone, add this entry: add rct1 set name= zone.cpu-shares add value (priv=privileged, limit=20, action=none) end exit from command line, enter: # dispadmin - d FSS

  C. From the command line enter: #prct1 -n zone.cpu-shares - r - v 20 - i zone testzone

  D. From the command line, enter: #prct1 - n zone.cpu-shares - v 80 - r - i zone global

  Correct Answer: C

  Explanation: The prctl utility allows the examination and modification of the resource controls associated

  with an active process, task, or project on the system. It allows access to the basic and privileged limits

  and the current usage on the specified entity.

  How to Change the zone.cpu-shares Value in a Zone Dynamically This procedure can be used in the

  global zone or in a non-global zone.

  Be superuser, or have equivalent authorizations.

  For more information about roles, see Configuring and Using RBAC (Task Map) in System Administration

  Guide: Security Services.

  Use the prctl command to specify a new value for cpu-shares. # prctl -n zone.cpu-shares -r -v value -i zone

  zonename idtype is either the zonename or the zoneid. value is the new value.

  Note: project.cpu-shares

  Number of CPU shares granted to a project for use with the fair share scheduler

  Reference: man prtcl

• Question 26:

  After installing the OS, you boot the system and notice that the syslogd daemon is not accepting messages from remote systems.

  Which two options should you select to modify the syslogd daemon configuration so that it accepts messages from remote systems?

  A. svccfg -s svc:/system/system -log setprop start/exec= "syslogd -t" Restart the syslogd daemon.

  B. Set the following parameter in the /etc/syslogd.conf file: LOG_FROM_REMOTE= YES Restart the syslogd daemon.

  C. svcadm enable svc:/system/system -log/config/log_from_remote Restart the syslogd daemon.

  D. svccfg -s svc:/system/system-log setprop config/log_from_remote=true Restart the syslogd daemon.

  E. Set the following parameter in the /etc/default/syslogd file: LOG_FROM_REMOTE=YES Restart the syslogd daemon.

  Correct Answer: BD

  Explanation: B: The /etc/default/syslogd file contains the following default parameter settings. See FILES.

  LOG_FROM_REMOTE Specifies whether remote messages are logged. LOG_FROM_REMOTE=NO is equivalent to the -t command-line option. The default value for LOG_FROM_REMOTE is YES.

• Question 27:

  On SystemA, you are troubleshooting a new installation of a virtual network. Local zones cannot connect

  with external systems.

  View the Exhibit.

  

  Loggea in to zonei orsystenvy you can successruiiy ping i cz.ig.vau ana icz.iq.vaz, Duttnere is no response rrom any systems on tne nyz.ioa.i.x network.

  Similarly, logged in to zone2 of SystemA, you can successfully ping 172 16.0 40 and 172 16 0.41, but there is no response from any systems on the 192.168.1.x network.

  However, logged in to the global zone of SystemA, you can successfully ping 172.16 0.41 and 172.16.0.42, as well as 192.168.1.21 and 192.168.1.22.

  Identify two possible explanations. (Choose two.)

  A. forwarding=on has not been configured for SystemA and SystemB.

  B. forwarding=on has not been configured for the global zone of SystemA.

  C. There are missing entries for SystemA and SystemB in /etc/inet/hosts.

  D. forwarding=on has not been configured for zonel and zone2 of SystemA.

  E. ARP table entries on SystemA and SystemB are incomplete for vnid and vnic2.

  F. SystemB and SystemC require a static route to the 172.16.0.x network via 192.168.1.20.

  Correct Answer: BE

• Question 28:

  You are planning the configuration for IPMP (IP Multipathing).

  Best practice dictates that you must ensure that there is at least one neighbor on each subnet that responds to ICMP echo request probes to detect link failure Which two of the following statements are true regarding the link failure detection process? (Choose two.)

  A. By default, in.mpathd selects the default router as the only test partner.

  B. The default failure detection time is 60 seconds (12 consecutive probes).

  C. Without test partners, in.mpathd cannot detect the failure of a subinterface.

  D. Arbitrary hosts on the subnet are detected by sending an "all hosts" (224.0.0.1) multicast packet

  E. Arbitrary hosts on the subnet are detected by sending an "all routers" (224.0.0.2) multicast packet.

  F. Arbitrary hosts on the subnet are detected by examining the ARP cache (Internet-to- MAC address translation table).

  Correct Answer: BD

• Question 29:

  You need to update an OS image on a client. The pkg publishers command displays the wrong publisher with the wrong update: PUBLISHERTYPESTATUSURI Solaris origin onlinehttp://pkg.oracle.com/solaris/release The update is available on the updated publisher:

  PUBLISHERTYPESTATUSURI Solaris originonlinehttp://sysA.example.com Select the option that describes the procedure used to update the OS image on the system from the updated publisher.

  A. Copy the repository from the ISO image onto the local client.

  Configure the repository on the client by using the svccfg - s command so that the Solaris publisher is

  connected to the new repository.

  Refresh the application/pkg/server service.

  Issue the pkgrepo refresh command to refresh the repository catalog

  B. Configure the publisher on the client using the svcfg - s command so that the Solaris publisher is connected to the repository at http://sysA.example.com Refresh the application/pkg/server service. Issue the pkgrepo refresh command to repository catalog

  C. Use the pkg set-publisher command to change the URL of the publisher Solaris to http:// sysA.example.com. Issue the pkg update command to update the OS image.

  D. Add the new publisher http://sysA.example.com Solaris Use the pkg set-publisher command to set the publisher search order and place http://sysA.example.com of http://pkg.oracle.com/solaris/release Issue the pkg publisher command to view the publishers. Set the new publisher to sticky. Issue the pkg update command to update the OS image.

  Correct Answer: C

  Explanation: You can use the pkg set-publisher command to change a publisher URI.

  Changing a Publisher Origin URI

  To change the origin URI for a publisher, add the new URI and remove the old URI. Use the -g option to add a new origin URI. Use the -G option to remove the old origin URI.

  # pkg set-publisher -g http://pkg.example.com/support \ -G http://pkg.example.com/release example.com

  Note: You can use either the install or update subcommand to update a package. The install subcommand installs the package if the package is not already installed in the image. If you want to be sure to update only packages that are already installed, and not install any new packages, then use the update subcommand.

  Reference: Oracle Solaris 11 Express Image Packaging System Guide, Managing Package Publishers

• Question 30:

  The COMSTAR framework provides support for the iSCSI protocol.

  Identify three true statements describing the COMSTAR framework. (Choose three.)

  A. One IP port can handle multiple iSCSI target devices.

  B. The disk volume provided by the server is referred to as the LUN and can be accessed by an iSCSI initiator.

  C. The disk volume provided by the server is referred to as the target.

  D. The iSCSI initiator is configured on the server. E The iSCSI initiator is configured on the client.

  Correct Answer: ACD