Oracle 1Z0-821 Online Practice Questions and Exam Preparation

Oracle 1Z0-821 Online Questions & Answers

• Question 51:

  The advantage of core tiles is that they allow you an opportunity to examine the cause of problems, so that they can be resolved. However, core files must be managed because they_____.

  A. take up large amounts of disk space
  B. make numerous entries into the /var/adm/wtmpx file
  C. steal resources from the processor, slowing down system performance
  D. fill up swap space; this will begin to slow the system due to swaps
  E. fill up swap space; this will begin to slow the system due to paging
  A. take up large amounts of disk space

  ---

  Part of the job of cleaning up heavily loaded file systems involves locating and removing files that have not been used recently. You can locate unused files by using the ls or find commands.

  Other ways to conserve disk space include emptying temporary directories such as the directories located in /var/tmp or /var/spool, and deleting core and crash dump files.

  Note: Core files are generated when a process or application terminates abnormally. Core files are managed with the coreadm command.

  For example, you can use the coreadm command to configure a system so that all process core files are placed in a single system directory. This means it is easier to track problems by examining the core files in a specific directory whenever

  a process or daemon terminates abnormally.

• Question 52:

  Which three Installation option allow for a "hands free" and "unattended'" Installation of the Solaris 11 environment?

  A. Jumpstart
  B. LiveCD
  C. A text Installation over the network
  D. An Automated Installation performed on an x86 client
  E. An Automated Installation using media from a local DVD or USB drive
  F. An Automated Installation using a networked repository
  D. An Automated Installation performed on an x86 client
  E. An Automated Installation using media from a local DVD or USB drive
  F. An Automated Installation using a networked repository

  ---

  Oracle Solaris 11 uses Automated Installer (AI) for unattended installations.

  Unattended installations are possible by placing the contents of the AI Image media (or ISO image contents from a download) on an AI server.

• Question 53:

  Select the two statements that correctly describe the operation of NWAM.

  A. If a location is explicitly enabled, it remains active until explicitly changed.
  B. Wireless security keys can be configured by using the nwammgr command.
  C. NWAM stores profile information in /etc/ipadm/ipadm.conf and /etc/dladm/datalink.conf.
  D. Multiple locations may be automatically activated in systems with multiple network interface cards.
  E. Interface NCU Properties "float" and are automatically attached to the highest priority Link NCU Property.
  F. If the DefaultFixed NCP is enabled, persistent configuration, stored in /etc/ipadm.conf and /etc/dladm/datalink.conf is used.
  A. If a location is explicitly enabled, it remains active until explicitly changed.
  D. Multiple locations may be automatically activated in systems with multiple network interface cards.

  ---

  A: Conditional and system locations can be manually activated, which means that the location remains active until explicitly disabled.

  D: A location comprises certain elements of a network configuration, for example a name service and firewall settings, that are applied together, when required. You can create multiple locations for various uses. For example, one location can be used when you are connected at the office by using the company intranet. Another location can be used at home when you are connected to the public Internet by using a wireless access point. Locations can be activated manually or automatically, according to environmental conditions, such as the IP address that is obtained by a network connection.

  

• Question 54:

  Examine this command and its output: # zoneadm list Global zone2 Which two outcomes can be deduced from this output?

  A. There is exactly one nonglobal zone installed.
  B. There is one nonglobal zone running.
  C. There is at least one oneglobal zone configured.
  D. There is one nonglobal zone that is not configured.
  E. There is one nonglobal zone that is not running.
  F. The is one nonglobal zone that is not installed.
  G. There is exactly one nonglobal zone configured.
  B. There is one nonglobal zone running.
  C. There is at least one oneglobal zone configured.

• Question 55:

  View the Exhibit and review the file system information displayed from a remote server.

  

  You are configuring a new server. This new server has the following storage pool configured:

  

  This new server also has the following file systems configured:

  

  When you are finished building this new server, the pool1/data dataset must be an exact duplicate of note server. What is the correct procedure to create the pool1/data dataset on this new server?

  A. zfs create –o mountpoint=/data –o refquota=1g pool1/data
  B. zfs set mountpoint=none pool1zfs create pool1/data
  C. zfs set mountpoint=none pool1zfs create –o mountpoint=/data –o quota=1g pool1/data
  D. zfs create quota=1g pool1/data
  E. zfs create mountpoint=/data pool1/data
  F. zfs set quota=1g pool1/data
  A. zfs create –o mountpoint=/data –o refquota=1g pool1/data

• Question 56:

  The storage pool configuration on your server is:

  

  You back up the /pool1/data file system, creating a snapshot and copying that snapshot to tape (/dev/rmt/0). You perform a full backup on Sunday night and Incremental backups on Monday through Saturday night at 11:00 pm. Each incremental backup will copy only the data that has been modified since the Sunday backup was started.

  On Thursday, at 10:00 am, you had a disk failure. You replaced the disk drive (c4t0d0). You created pool (pool1) on that disk.

  Which option would you select to restore the data in the /pool1/data file system?

  A. zfs create pool1/dataLoad the Monday tape and enter:zfs recv pool1/data < /dev/rmt/0Load the Wednesday tape and enter:zfs recv
  B. Load the Sunday tape and restore the Sunday snapshot:zfs recv pooll/data < /dev/rmt/0zfs rollback pool1/data@monLoad the Wednesday tape and restore the Wednesday snapshot:zfs recv
  C. zfs create pooll/dataLoad the Wednesday tape and enter:zfs recv -F pool1/data < /dev/rmt/0
  D. Load the Sunday tape and enter:zfs recv pool1/data < /dev/rmt/0Load the Wednesday tape and enter:* commands missing*
  D. Load the Sunday tape and enter:zfs recv pool1/data < /dev/rmt/0Load the Wednesday tape and enter:* commands missing*

  ---

  First the full backup must be restored. This would be the Sunday backup. Then the last incremental backup must be restored. This would be the Wednesday backup. Before restoring the Wednesday incremental file system snapshot, the most

  recent snapshot must first be rolled back.

  By exclusion D) would be best answer even though it is incomplete.

• Question 57:

  Which two SMF milestones can be specified at boot time?

  A. none
  B. network
  C. all
  D. config
  E. unconfig
  F. devices
  A. none
  C. all

  ---

  The milestones that can be specified at boot time are

  none single-user multi-user multi-user-server all

• Question 58:

  You created an IP address for interface not.3 with the following command, which executed successfully:

  ipadm create-addr –T static –a 192.168.0.100/24 net3/v4

  You then ran:

  ipadm show -if

  The result indicated that the interface was down.

  You then ran:

  ipadm delete-addr net3/v4

  ipadm create-addr –T static –a 192.168.0.101/24 net3/v4

  ipadm show-if

  The last command indicated that the interface was up.

  Why did it work with the second address specified, but not the first?

  A. The 192.168.0.100 address is reserved for broadcast messages.
  B. Another device exists on the network, using the 192.168.0.100 address.
  C. The network interface card does not support the address 192.168.0.100.
  D. The address 192.168.0.100 is at a boundary and may not be configured in Oracle Solaris 11.
  E. 192.168.0.100 is a DHCP address and may not be statically configured in Oracle Solaris 11.
  B. Another device exists on the network, using the 192.168.0.100 address.

  ---

  The first IP address is already in use.

• Question 59:

  Your SPARC server will not boot into multi user-server milestones and you need to troubleshoot to out why. You need to start the server with minimal services running so that you can go through each milestone manually to troubleshoot the issue.

  Select the option that boots the server with the fewest services running.

  A. boot -s
  B. boot milestone none
  C. boot -m milestone=single-user
  D. boot -m milestone=none
  E. boot -m none
  D. boot -m milestone=none

  ---

  The command boot -m milestone=none is useful in repairing a system that have problems booting early.

  Boot Troubleshooting: To step through the SMF portion of the boot process, start with: boot -m milestone=none Then step through the milestones for the different boot levels: svcadm milestone svc:/milestone/single-user:default svcadm milestone svc:/milestone/multi-user:default svcadm milestone svc:/milestone/multi-user-server:default

• Question 60:

  The default publisher on your system is:

  

  You want to update the Oracle Solaris 11 environment on your system, but you are not able to connect this system to the Internet to access the default Oracle repository. A repository has been created on your local network and is named http://server1.example.com.

  Which command would you choose to connect your system to the local repository?

  A. pkg publisher to specify the new publisher
  B. pkg set-publisher to set the stickiness on the http://server1.example.com publisher and unset stickiness for http://pkg.oracle.com/solaris/release
  C. pkg add-publisher to add the new publisher
  D. pkg set-publisher to set the origin for the publisher
  D. pkg set-publisher to set the origin for the publisher

  ---

  Solaris 11 Express makes it pretty easy to set up a local copy of the repository. A common reason folks need access to a local repository is because their system is not connected to the Internet.

  Tthe pkg set-publisher command can be used to for example add a publisher or to enable or disable a publisher.

  Note: Example Adding a Publisher

  Use the -g option to specify the publisher origin URI.

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

  Example Specifying the Preferred Publisher

  Use the -P option to specify a publisher as the preferred publisher. The specified publisher moves to the top of the search order. You can specify the -P option when you add a publisher or you can modify an existing publisher.

  # pkg set-publisher -P example.com Example Enabling or Disabling a Publisher Use the -d option to disable a publisher. The preferred publisher cannot be disabled. A disabled publisher is not used in package operations such as list and install. You can modify the properties of a disabled publishers.

  Use the -e option to enable a publisher. # pkg set-publisher -d example2.com