Oracle 1Z0-820 Online Practice Questions and Exam Preparation

Oracle 1Z0-820 Online Questions & Answers

• Question 121:

  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).
  B. The default failure detection time is 60 seconds (12 consecutive probes).
  D. Arbitrary hosts on the subnet are detected by sending an "all hosts" (224.0.0.1) multicast packet

• Question 122:

  View the Exhibit

  

  You executed the command on the Automated Installer (AJ) install server.

  Select the three options that describe the information in the Exhibit. (Choose three.)

  A. It shows the Al manifests and SC profiles that have been added to the sll-sparc install service.
  B. it will be used to install two zones, zonel and zone2, as part of the Automated Installation.
  C. zmanifest is used to configure zone parameters such as language, locale, time zone, terminal, users, and the root password for the zone administrator.
  D. The z1 profile and z2profile contain all of the instructions for creating the zone (zonecfg). The information used in this file is in a zonecfg export format
  E. The z1 profile and z2profile contain information to configure zone parameters such as language, locale, time zone, terminal, users, and the root password for the zone administrator.
  B. it will be used to install two zones, zonel and zone2, as part of the Automated Installation.
  C. zmanifest is used to configure zone parameters such as language, locale, time zone, terminal, users, and the root password for the zone administrator.
  D. The z1 profile and z2profile contain all of the instructions for creating the zone (zonecfg). The information used in this file is in a zonecfg export format

• Question 123:

  Your are troubleshooting network throughput on your server.

  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 - aggr
  B. dlstat show-aggr
  C. dlstat show-link -r
  D. dlstat show-link -aggr
  E. dlstat show-phys -aggr
  B. dlstat show-aggr

  ---

  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.

• Question 124:

  The following information is displayed during the migration of a ZFS file system:

  

  Which answer correctly describes the status of the migration?

  A. The new file system is named pool1/data1, the shadowstat command was used to generate the output, and the migration is still in progress.
  B. The shadowed file system is named pool1/data1, the shadowstat command was used to generate the output, and the migration is still in progress
  C. 25.5 GB of data has been transferred so far. 409 MB of data remains to be transferred
  D. The shadowed file system is named pool1/data1. the shadowstat command was used to generate the output, and the migration is still in progress with 409 MB remaining to be transferred to the target filesystem.
  E. The new file system is named pool1/data1, the shadow command was used to generate the output, and the migration is still in progress.
  F. The shadowed file system is named pool1/data1, the shadow command was used to generate the output, and the migration is still in progress.
  G. 27.3 GB is the exact size of the data that is yet to be transferred from the shadowed file system.
  F. The shadowed file system is named pool1/data1, the shadow command was used to generate the output, and the migration is still in progress.

• Question 125:

  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.
  B. forwarding=on has not been configured for the global zone of SystemA.
  E. ARP table entries on SystemA and SystemB are incomplete for vnid and vnic2.

• Question 126:

  The COMSTAR framework provides support for the iSCSI protocol.

  Select three options that correctly describe the COMSTAR framework.

  A. iSCSI devices can be used as dump devices.
  B. SCSI commands are carried over IP networks and enable you to mount disk devices from across the network onto your local system.
  C. Large amounts of data can be transferred over an IP network with very little network degradation.
  D. COMSTAR allows you to convert any Solaris11 host into a SCSI target device that can be accessed over a storage network.
  E. One IP port can handle multiple ISCSI target devices.
  B. SCSI commands are carried over IP networks and enable you to mount disk devices from across the network onto your local system.
  D. COMSTAR allows you to convert any Solaris11 host into a SCSI target device that can be accessed over a storage network.
  E. One IP port can handle multiple ISCSI target devices.

  ---

  B: By carrying SCSI commands over IP networks, the iSCSI protocol enables you to access block devices from across the network as if they were connected to the local system. COMSTAR provides an easier way to manage these iSCSI target devices.

  D: Common Multiprotocol SCSI TARget, or COMSTAR, a software framework that enables you to convert any Oracle Solaris 11 host into a SCSI target device that can be accessed over a storage network by initiator hosts.

  E: One IP port can handle multiple iSCSI target devices.

  Reference: Oracle Solaris Administration: Devices and File Systems, Configuring Storage Devices With COMSTAR

• Question 127:

  You need to remove the gzip software package.

  Before you remove the package, you want to create a backup of the operating environment.

  Which IPS command should you use?

  A. Use the pkg remove command with the -require-backup-be option
  B. Use the beadm create command to create a new boot environment Use the pkg remove command to remove the gzip package from the current boot environment.
  C. Use the luucreate command to create a new boot environment. Use the pkgrm command to remove the gzip package from the current boot environment
  D. Use the pkg unmstall command with the -backup-be-name option
  B. Use the beadm create command to create a new boot environment Use the pkg remove command to remove the gzip package from the current boot environment.

• Question 128:

  The current ZFS configuration on your server is:

  pool1200K3.91G31K/pool1 pool1/data31K3.91G31K/data

  Your backup policy states that you are to perform a full backup of /data on Sunday and incremental backups on Monday through Saturday. Each incremental will back up only the data that has been created or modified since the Sunday backup was started The file systems must be available to users at all times and the data will be backed up to tape.

  Which option should you choose for the Wednesday backup?

  A. On Sunday zfs snapshot pool1/data@sunday zfs send pool1/data@sunday > /dev/rmt/0 On Wednesday zfs snapshot pool1/data@wednesday zfs send -i pool1/data@sunday pool1/data@wednesday > /dev/rmt/0
  B. On Sunday zfs snapshot pool1/data@sunday > /dev/rmt/0 On Wednesday zfs snapshot -i pool1/data@wednesday >/dev/rmt/0
  C. On Sunday zfs snapshot pool1/data@sunday zfs send pool1/data@sunday > /dev/rmt/0 On Wednesday zfs snapshot pool1/data@wednesday zfs send -i pooll/data@wednesday pooll/data@sunday > /dev/rmt/0
  D. On Sunday zfs snapshot pool1/data@sunday zfs send pool1/data@sunday > /dev/rmt/0 On Wednesday zfs snapshot pool1/data@wednesday zfs send -i pool1/data@wednesday > /dev/rmt/0
  E. On Sunday zfs snapshot pool1/data@sunday zfs send pool1/data@sunday | zfs recv> /dev/rmt/0 On Wednesday zfs snapshot pool1/data@wednesday zfs send -i pool1/data@sunday pool1/data@wednesday|zfs recv > /dev/rmt/0
  C. On Sunday zfs snapshot pool1/data@sunday zfs send pool1/data@sunday > /dev/rmt/0 On Wednesday zfs snapshot pool1/data@wednesday zfs send -i pooll/data@wednesday pooll/data@sunday > /dev/rmt/0

• Question 129:

  New features wore added to ZFS in Oracle Solaris11. Your justification to upgrade from Solaris10 to oracle Solaris11 is that it will be possible to take advantage of the enhancements that were made to ZFS.

  Identify the three ZFS functions and features that are included in Oracle Solaris 11, but not in Solaris 10.

  A. Encrypted ZFS datasets
  B. Ability for ZFS to detect and remove redundant data from the tile system
  C. Shadow Data Migration
  D. Ability to split a mirrored ZFS storage pool
  E. Ability to use ZFS on the boot drive and boot to a ZFS root file system.
  F. elimination of the swap file system when using ZFS on the root disk
  A. Encrypted ZFS datasets
  B. Ability for ZFS to detect and remove redundant data from the tile system
  E. Ability to use ZFS on the boot drive and boot to a ZFS root file system.

  ---

  A: ZFS encryption was introduced in ZFS Pool Version Number 30, Solaris Nevada b149. Filesystem encryption since Solaris 11 Express

  B: Deduplication was introduced in ZFS Pool Version Number 21, Solaris Nevada b128.

  E: Booting From a ZFS Root File System Both SPARC based and x86 based systems use the new style of booting with a boot archive, which is a file system image that contains the files required for booting. When a system is booted from a ZFS root file system, the path names of both the boot archive and the kernel file are resolved in the root file system that is selected for booting.

  Reference: Oracle Solaris ZFS Administration Guide, Booting From a ZFS Root File System

• Question 130:

  Before booting test zone a non-global zone, you want to connect to the zone's console so that you can watch the boot process.

  Choose the command used to connect to testzone's console.

  A. zoneadm -C testzone
  B. zoneadm -console testzone
  C. zlogin - z testzone console
  D. zlogin - z testzone - C
  E. zlogin -C testzone
  F. zoneadm - testzone - c
  E. zlogin -C testzone

  ---

  The following options are supported:

  -C

  Connects to the zone console. Connects to the zone console.

  Note:

  After you install a zone, you must log in to the zone to complete its application environment. You might log in to the zone to perform administrative tasks as well. Unless the -C option is used to connect to the zone console, logging in to a zone

  using zlogin starts a new task. A task cannot span two zones Reference: man zlogin