Oracle 1Z0-820 Online Practice Questions and Exam Preparation

Oracle 1Z0-820 Online Questions & Answers

• Question 81:

  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.
  A. The solaris-1 boot environment is not bootable.
  D. The solaris-1 boot environment was created in the non-global zone using the beadm create command.

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  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.

  D: beadm create

  Creates a new boot environment name, beName.

  Note: beadm list

  Lists information about the existing boot environment, which is beName, or lists information for all boot environments if beName is not provided.

  Note: Using beadm Utility (Tasks)

  You can use the beadm utility to create and manage snapshots and clones of your boot environments.

  Note the following distinctions relevant to boot environment administration:

  *

  A snapshot is a read-only image of a dataset or boot environment at a given point in time. A snapshot is not bootable.

  *

  A boot environment is a bootable Oracle Solaris environment, consisting of a root dataset and, optionally, other datasets mounted underneath it. Exactly one boot environment can be active at a time.

  *

  A clone of a boot environment is created by copying another boot environment. A clone is bootable.

  Reference: Creating and Administering Oracle Solaris 11 Boot Environments

• Question 82:

  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

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  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.

  Reference: Oracle Solaris Administration: Security Services, BART Manifests, Rules Files, and Reports (Reference)

• Question 83:

  You have a Solaris 10 system with a host name of sysA and it uses LDAP as a naming service. You have created a flash archive of sysA and you want to migrate this system to an Oracle Solaris 11 server as a solarislO branded zone The zone status on the Oracle Solaris 11 server is:

  -zonel 0incomplete/zone/zone1solaris10 excl

  Select the option that will force the non-global zone to prompt you for a host name and name service the first time it is booted.

  A. Use zonecfg to change the zonename before booting the system for the first time.
  B. Use the -u option with the zoneadm -z zonel 0 attach command.
  C. Use the -u option with the zoneadm -z zonel 0 install command.
  D. Remove the sysidcfg file from the /root directory before booting the non- global zone.
  C. Use the -u option with the zoneadm -z zonel 0 install command.

• Question 84:

  Which three statements accurately describe the Automated Installation (Al) client? (Choose three.)

  A. if the Al client does not match any cnteria to use a custom manifest or script, the default manifest is used.
  B. if the A! client does not match any criteria to use a custom manifest or script, the automated installation aborts.
  C. Any manifest or script in a service can be designated to be the default for that service.
  D. Only the default.xml file is used as the default Al client manifest.
  E. if a client system does not use any SC profile, then an interactive tool opens on that client at first boot after that client installation to complete the configuration of that client.
  F. If a client system does not use any SC profile, then the install server will use the default SC profile.
  A. if the Al client does not match any cnteria to use a custom manifest or script, the default manifest is used.
  C. Any manifest or script in a service can be designated to be the default for that service.
  E. if a client system does not use any SC profile, then an interactive tool opens on that client at first boot after that client installation to complete the configuration of that client.

• Question 85:

  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
  B. installadm set-criteria

  ---

  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 86:

  Which three options describe the purpose of the zonep2vchk command?

  A. Used on a Solaris 10 global zone to access the system for problems before migrating that system to a Solaris 10 branded zone.
  B. Used to access a Solaris 10 global zone for problems before migrating that zone to a Solaris 11 global zone
  C. Used to create zonecfg template for a Solaris 10 global zone that that will be migrated to a solaris10 branded zone.
  D. Used to migrate an Oracle Solaris 11 global zone to a non-global zone.
  E. Used to migrate a Solaris 10 global zone to a non-global zone on the same server; the non-global zone can then be migrated to a Solaris 11 server as a Solaris10 branded zone.
  C. Used to create zonecfg template for a Solaris 10 global zone that that will be migrated to a solaris10 branded zone.
  D. Used to migrate an Oracle Solaris 11 global zone to a non-global zone.
  E. Used to migrate a Solaris 10 global zone to a non-global zone on the same server; the non-global zone can then be migrated to a Solaris 11 server as a Solaris10 branded zone.

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  zonep2vchk

  - check a global zone's configuration for physical to virtual migration into non-global zone

  The zonep2vchk utility is used to evaluate a global zone's configuration before the process of physical-to-virtual (p2v) migration into a non-global zone. The p2v process involves archiving a global zone (source), and then installing a non-global zone (target) using that archive zonep2vchk serves two functions. First, it can be used to report issues on the source which might prevent a successful p2v migration. Second, it can output a template zonecfg, which can be used to assist in configuring the non-global zone

  target. zonep2vchk can be executed on a Solaris 10 or later global zone. To execute on Solaris 10, copy the zonep2vchkutility to the Solaris 10 source global zone.

  When run on Solaris 10, a target release of S11 can be specified, which will check for p2v into a Solaris 10 Branded zone.

  Reference: man zonep2vchk

• Question 87:

  In an effort to reduce storage space on your server, you would like to eliminate duplicate copies of data in your server's ZFS file systems.

  How do you specify that pool1/data should not contain duplicate data blocks (redundant data) on write operations?

  A. zfs create - o compression=on pool1/data
  B. zpool create -o deduplication =on pool1; zfs create pool1/data
  C. zfs create - o deduplication=on pool1; zfs create pool1/data
  D. zfs create - o dedupratio=2 pool1/data
  E. zfs create - o dedup=on pool1/data
  E. zfs create - o dedup=on pool1/data

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  ZFS Deduplication Property Solaris Express Community Edition, build 129: In this Solaris release, you can use the deduplication 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.

  You can enable this property as follows:

  # zfs set dedup=on tank/home

• Question 88:

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

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

  A. sys-unconfig
  B. installadm set-criteria
  C. sysconfig create-profile
  D. installadm create-profile
  C. sysconfig create-profile

• Question 89:

  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

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  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 We will be examini

  Reference: Oracle Solaris Administration: Network Interfaces and Network Virtualization, Configuring Components of Network Virtualization in Oracle Solaris

• Question 90:

  You are creating a non-global zone on your system.

  Which option assigns a zpool to a non-global zone, and gives the zone administrator permission to create zfs file system in that zpool?

  A. While creating the non-global zone, make the following entry: add device set match=/dev/rdsk/c4t0d0 end Boot the zone and log in the zone as root. Create the zpool: zpool create pool2 c4t0d0 In the non-global zone, root can now create ZFS file system in the pool2 zpool
  B. In the global zone, create the zpool: global# zpool create pool2 c4t1d0 While creating the no-global zone, make the following entry: add dataset set name=pool2 end add fs set dir=pool1 set special=pool1 set type=zfspool1 end Boot the zone, log in the zone as root, and create the zfs file system in the pool2 zpool.
  C. In the global zone, create the zpool: global#zpool create pool2 c4t1d0 While creating the global zone, make the following entry: add dataset set name=pool2 end Boot the zone, log in to the zone as root and create the zfs file systems in the pool2 zpool.
  D. In the global zone, create the zpool and the ZFS file systems that you want to use in the non-global zone: global#zpool create pool2 c4t1d0 global#zfs create pool2/data While creating the non-global zone, make the following entry for each ZFS file system that you want to make available in the zone: add fs set dir=/data set special=pool2/data set type=zfs end
  E. Create the zpool in the global zone: global#zpool create pool2 c4t1d0 Boot the non-global zone, log in to the zone as root, and issue this command to delegate ZFS permissions to root: non-global zone# zfs allow root create , destroy, mount pool2 Log in to the non-global zone create ZFS file systems in the pool2 zpool.
  C. In the global zone, create the zpool: global#zpool create pool2 c4t1d0 While creating the global zone, make the following entry: add dataset set name=pool2 end Boot the zone, log in to the zone as root and create the zfs file systems in the pool2 zpool.

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  Reference: Oracle Solaris ZFS Administration Guide, Adding ZFS File Systems to a Non- Global Zone