Oracle 1Z0-821 Online Practice Questions and Exam Preparation

Oracle 1Z0-821 Online Questions & Answers

• Question 31:

  The core dump configuration for your system is:

  

  A user is running a process in the global zone and the process crashes. The process information is:

  User1 2663 2618 0 17:46:42 pts/2 0:00 /usr/bin/bash The server host name is: zeus What will the per-process core file be named?

  A. core.bash.2663.global
  B. core.bash.2663.zeus
  C. /var/core/core.bash.2663
  D. /var/core/core.bash.2663.global
  C. /var/core/core.bash.2663

  ---

  Note the first line:

  global core file pattern: /globalcore/core.%f.%p

  The program name is bash

  The runtime process ID is 2663

  Note: By default, the global core dump is disabled. You need to use the coreadm command with the -e global option to enable it. The -g option causes the command to append the program name(%f) and the runtime process ID (%p) to the

  core file name.

• Question 32:

  A local repository is available on this system and you need to enable clients to access this repository via HTTP. The repository information is:

  PUBLISHERTYPESTATUSURI

  solarisoriginonlinehttp://sysA.example.com

  Identify two of the steps that are required to make the local repository on this server available to the client via HTTP.

  A. On the server: set the pkg/inst_root and pkg/readonly properties for the svc:/application/pkg/server:default service and enabled the service
  B. On the server: set the sharefs property on the ZFS file system containing the IPS repository.
  C. On the client: reset the origin for the solaris publisher.
  D. On the client: set the pkg/inst_root and pkg/readonly properties for the svc:/application/server:default service enable the service.
  E. On the client: start the pkg.depotd process.
  A. On the server: set the pkg/inst_root and pkg/readonly properties for the svc:/application/pkg/server:default service and enabled the service
  E. On the client: start the pkg.depotd process.

  ---

  A: Configure the Repository Server Service

  To enable clients to access the local repository via HTTP, enable the application/pkg/server Service Management Facility (SMF) service.

  # svccfg -s application/pkg/server setprop pkg/inst_root=/export/repoSolaris11 # svccfg -s application/pkg/server setprop pkg/readonly=true

  E: Use pkg.depotd to serve the repository to clients.

  Start the Repository Service

  Restart the pkg.depotd repository service.

  # svcadm refresh application/pkg/server

  # svcadm enable application/pkg/server

  To check whether the repository server is working, open a browser window on the localhost location.

• Question 33:

  On which is the open boot prom available?

  A. x86 only
  B. x86 64-Bit only
  C. SPARC only
  D. both x86 and x86 64-Bit
  E. x86, x86 64-Bit and SPARC
  C. SPARC only

  ---

  No OpenBoot Environment on the Intel Platform. The Intel environment has no OpenBoot PROM or NVRAM. On Intel systems, before the kernel is started, the system is controlled by the basic input/output system (BIOS), the firmware interface on a PC. Therefore, many features provided by OpenBoot are not available on Intel systems.

  Note: The Open Boot PROM (OBP) bootloader only exists within SPARC. Before Solaris 10 01/06, the bootloader for Solaris x86 was a Sun customized bootstrap software. After Solaris 10 01/06, it uses GRUB, a well known bootloader that's commonly used in the Linux world.

  With GRUB, it's much easier to make the system dual-boot Linux and Solaris. GRUB extends the capabilities of the bootloader that was not available previously such as the ability to boot from a USB DVD drive. Those who have used Linux will be quite familiar with GRUB and its options.

• Question 34:

  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.comRefresh 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 SolarisUse the pkg set-publisher command to set the publisher search order and place http://sysA.example.com of http://pkg.oracle.com/solaris/releaseIssue the pkg publisher command to view the publishers. Set the new publisher to sticky. Issue the pkg update command to update the OS image.
  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.

  ---

  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.

• Question 35:

  When speaking to an Oracle Support Engineer, you are asked to verify the version of the Solaris 11 build currently running on your system. Which command would display the Solaris 11 build version currently running on your system?

  A. pkg info all
  B. cat /etc/release
  C. cat /etc/update
  D. prtconf | grep
  E. pkg info entire
  B. cat /etc/release

  ---

  Which Solaris release you are running on your system can be determined using the following command:

  cat /etc/release

  This will tell you which release you are running and when it was released. The more recent your system, the more info is contained in this file.

  Example: # cat /etc/release Oracle Solaris 10 8/11 s10s_u10wos_17b SPARC Copyright (c) 1983, 2011, Oracle and/or its affiliates. All rights reserved. Assembled 23 August 2011

• Question 36:

  Identify the correctly matching pair of equivalent functionality of JumpStart and Automated installer (AI).

  A. JumpStart: begin script AI: package repository
  B. JumpStart: setup_serverAI: installadm create-service
  C. JumpStart: add_Install_clientAI: SMF system configuration profile files
  D. JumpStart: finish scripts and sysidsfg filesAI: manifest files
  B. JumpStart: setup_serverAI: installadm create-service

  ---

  JumpStart: Use the setup_install_server(1M) command. AI: Use the installadm create-service command.

• Question 37:

  You have installed software updates to a new boot environment (BE) and have activated that the booting to the new BE, you notice system errors. You want to boot to the last known good configuration. Which option would you use on a SPARC system to boot to the currentBE boot environment?

  A. boot -L currentBE
  B. boot -Z rpool/ROOT/currentBE
  C. boot -a Enter the currentBE dataset name when prompted.
  D. boot rpool/ROOT/currentBE
  E. boot -m currentBE
  F. beadm activate currentBE
  F. beadm activate currentBE

  ---

  You can change an inactive boot environment into an active boot environment. Only one boot environment can be active at a time. The newly activated boot environment becomes the default environment upon reboot. How to Activate an Existing Boot Environment

  1. Use the following command to activate an existing, inactive boot environment:

  beadm activate beName

  beName is a variable for the name of the boot environment to be activated.

  Note the following specifications.

  beadm activate beName activates a boot environment by setting the bootable pool property, bootfs, to the value of the ROOT dataset of the boot environment that is being activated.

  beadm activate sets the newly activated boot environment as the default in the menu.lst file.

  2. Reboot.

  The newly activated boot environment is now the default on the x86 GRUB menu or SPARC boot menu.

• Question 38:

  Oracle Solaris 11 kernel encounters a fatal error, and it results in a system panic. What type of file does this generate?

  A. a.out
  B. objdump
  C. core dump
  D. tape dump
  E. crash dump
  C. core dump

  ---

  A kernel panic is a type of error that occurs when the core (kernel) of an operating system receives an instruction in an unexpected format or when it fails to handle properly. A kernel panic can also follow when the operating system can't recover from a different type of error. A kernel panic can be caused by damaged or incompatible software or, more rarely, damaged or incompatible hardware.

  When a server kernel panics it abruptly halts all normal system operations. Usually, a kernel process named panic() outputs an error message to the console and stores debugging information in nonvolitile memory to be written to a crash log file upon restarting the computer. Saving the memory contents of the core and associated debugging information is called a "core dump."

• Question 39:

  You run the command dlstat show-link -r.

  Select the two correct statements regarding the information displayed in the INTRS column.

  A. No value is listed for virtual network interfaces.
  B. A value of 0 is listed for virtual interfaces and ether stubs.
  C. The number of Interrupts is listed, which indicates network efficiency.
  D. A number equal to the number of transmitted Ethernet frames is listed for physical links.
  E. The number of packets that were interrupted by a collision is listed, which may indicate hardware problems.
  C. The number of Interrupts is listed, which indicates network efficiency.
  E. The number of packets that were interrupted by a collision is listed, which may indicate hardware problems.

  ---

  In this output, the statistics for interrupt (INTRS) are significant. Low interrupt numbers indicate greater efficiency in performance. If the interrupt numbers are high, then you might need to add more resources to the specific link.

  Example:

  # dlstat -r -i 1

  LINK IPKTS RBYTES INTRS POLLS CH<10 CH10-50 CH>50

  e1000g0 101.91K 32.86M 87.56K 14.35K 3.70K 205 5

  nxge1 9.61M 14.47G 5.79M 3.82M 379.98K 85.66K 1.64K

  vnic1 8 336 0 0 0 0 0

  e1000g0 0 0 0 0 0 0 0

  nxge1 82.13K 123.69M 50.00K 32.13K 3.17K 724 24

  vnic1 0 0 0 0 0 0 0

  Note: dlstat show-link [-r [-F] | -t] [-i interval] [-a] [-p] [ -o field[, ...]] [-u R|K|M|G|T|P] [link] Display statistics for a link.

  -r

  Display receive-side statistics only. Includes bytes and packets received, hardware and software drops, and so forth.

  List of supported RX fields:

  link

  iusedby

  ibytes

  ipkts

  intrs

  polls

  hdrops: hardware drops

  sdrops: software drops (owing to bandwidth enforcement) ch<10: number of packet chains of length < 10

  ch10-50: number of packet chains of length between 10 and 50 ch>50: number of packet chains of length > 50

• Question 40:

  The interface net3 should be operating, but is not.

  Command:

  

  Which command should you enter next?

  A. ipadm create-ip
  B. ipadm enable-if
  C. ipadm show-if
  D. ipadm up-addr
  B. ipadm enable-if

  ---

  Enable-if -t interface

  Enables the given interface by reading the configuration from the persistent store. All the persistent interface properties, if any, are applied and all the persistent addresses, if any, on the given interface will be enabled.

  -t, --temporary

  Specifies that the enable is temporary and changes apply only to the active configuration.