Oracle Oracle Certifications 1Z0-821 Questions & Answers

• Question 71:

  dbzone is currently running on your server.

  Which two methods would you use to safely and cleanly shut down dbzone and all of its applications?

  A. zlogin -z dbzone halt

  B. zoneadm -z dbzone shutdown -i0

  C. zoneadm -z dbzone shutdown

  D. zoneadm -z dbzone halt

  E. zlogin dbzone shutdown -i0

  Correct Answer: DE

  D: zoneadm halt command halts the specified zones. halt bypasses running the shutdown scripts inside

  the zone. It also removes run time resources of the zone.

  E: Use: zlogin zone shutdown

  to cleanly shutdown the zone by running the shutdown scripts.

  Use this procedure to cleanly shut down a zone.

  1.

  Become superuser, or assume the Primary Administrator role.

  2.

  Log in to the zone to be shut down, for example, my-zone, and specify shutdown as the name of the

  utility and init 0 as the state global# zlogin my-zone shutdown -y -g0 -i 0

• Question 72:

  You attempted to reboot a system via the init command, however the system did not perform boot sequence into the Oracle Solaris Operating Environment. You are presented with a prompt from the OpenBoot PROM. Which command would you enter, to boot the system from the default device?

  A. boot -net install

  B. boot

  C. boot -default

  D. boot -s0

  Correct Answer: B

  Boot With this form, boot loads and executes the program specified by the default boot arguments from the default boot device

  Note: boot has the following general format: boot [device-specifier] [arguments] where device-specifier and arguments are optional.

• Question 73:

  Review the zonestat command:

  zonestate - q physical - memory -R high -z -p -p "zones" 10 24h 60m

  Select the option that correctly describes the information that is displayed by this command.

  A. It is a sample of dbzone's physical memory usage taken every hour over a 24-hour period.Only the top 10 samplings of peak memory usage are displayed. All other utilization data is eliminated.

  B. It is a sample of dbzone's CPU, virtual memory, and networking utilization.Physical memory is executed from the report.The sampling is taken every 10 minutes over a 24- hour period and peak utilization id displayed each hour.

  C. It is a sample of dbzone's CPU, virtual memory, and networking utilization.Physical memory is executed from the report.The sampling is taken every 10 minutes over a 24- hour period and displayed each hour.

  D. It is a sample of dbzone's physical memory usage taken every 10 seconds and 24-hour period.Only peak virtual memory usage and CPU utilization are displayed each hour.All other Utilization data is eliminated.

  E. It is a sample of dbzone's physical memory usage taken every 10 seconds and 24-hour period.Only peak memory usage is displayed each hour.All other utilization data is eliminated.

  Correct Answer: D

  *

  (Not A, B, C): interval (here 10 seconds): Specifies the length in seconds to pause between each interval report.

  *

  duration (here 24 h)

  * -R report[, report] (here high)

  Print a summary report.

  High Print a summary report detailing the highest usage of each resource and zone during any interval of

  the zonestat utility invocation.

  Note: The zonestat utility reports on the cpu, memory, and resource control utilization of the currently

  running zones. Each zone's utilization is reported both as a percentage of system resources and the

  zone's configured limits.

  The zonestat utility prints a series of interval reports at the specified interval. It optionally also prints one or more summary reports at a specified interval.

  The default output is a summary of cpu, physical, and virtual memory utilization. The -r option can be used to choose detailed output for specific resources.

• Question 74:

  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

  Correct Answer: 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 75:

  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.

  Correct Answer: ABDFH

  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 76:

  Your server has a ZFS storage pool that is configured as follows:

  

  The server has two spate 140-GB disk drives: c3t5d0 c3t6d0 Which command would add redundancy to the pool1 storage pool?

  A. zpool attach pool1 c3t5d0 c3t6d0

  B. zpool attach pool1 c3t3d0 c3c5d0; zpoo1 attach pool1 c3t4d0 c3t6d0

  C. zpool mirror pool1 c3t5d0 c3t6d0

  D. zpool add pool1 mirror c3t5d0 c3t6d0

  E. zpool add raidz pool1 c3t5d0 c3t6d0

  Correct Answer: A

  You can convert a non-redundant storage pool into a redundant storage pool by using the zpool attach command. Note: zpool attach [-f] pool device new_device Attaches new_device to an existing zpool device. The existing device cannot be part of a raidz configuration. If device is not currently part of a mirrored configuration, device automatically transforms into a two-way mirror of device and new_device. If device is part of a two-way mirror, attaching new_device creates a three-way mirror, and so on. In either case, new_device begins to resilver immediately.

• Question 77:

  Server A, Server B, and Server C are connected to the same network switch and are on the sari Each

  server has a single network interface, net0.

  You received a tech support call that Server B has lost network connectivity. Your troubleshooting has

  discovered:

  Server A can ping Server C, but not Server B.

  Server B can ping localhost, but not Server A or C.

  Server C can ping Server A, but not Server B.

  On Server F3, you enter the following command:

  dladm show-phys | grep net0

  Response:

  net0/v4 Ethernet down 0 unknown el00gl

  What is the next logical troubleshooting action?

  A. Run arp -a on all servers.

  B. Confirm that the router is working.

  C. Confirm that the power light of the network switch is on.

  D. Confirm that the physical network connections are intact.

  E. On Server A and C, run tranceroute –n server.

  F. On Server B, run tranceroute –n servera and tranceroute –n serverc.

  Correct Answer: D

  Check the physical connection.

• Question 78:

  View the Exhibit.

  

  Which is true regarding the disk drive?

  A. This disk configuration could be used as a ZFS root disk.

  B. This disk contains an SMI disk label.

  C. Slice 7 represents the entire disk and cannot be used as a slice for a file system

  D. The disk contains an EFI disk label.

  Correct Answer: A

  Installing a ZFS Root Pool

  The installer searches for a disk based on a recommended size of approximately 13 GB.

• Question 79:

  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

  Correct Answer: ABC

  http://www.oracle.com/technetwork/server-storage/solaris11/overview/solaris-matrix- 1549264.html

• Question 80:

  View the exhibit to inspect the file system configuration on your server.

  

  View the Exhibit to inspect the file system configuration on your server.

  Your department's backup policy is to perform a full backup to a remote system disk on Saturday.

  On Sunday through Friday, you are to perform a differential backup to the same remote system disk:

  Following your company policy, which option describes a valid procedure for backing up the /data file

  system to a remote disk named /remote/backup?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C