Oracle 1Z0-821 Online Practice Questions and Exam Preparation

Oracle 1Z0-821 Online Questions & Answers

• Question 131:

  You are troubleshooting the Oracle Solaris11 Automated Installer (AI), which is not connecting with the IPS software repository. Which three steps will help determine the cause of DNS name resolution failure?

  A. Verify the contents of /etc/resolve.conf.
  B. Run netstat -nr to verify the routing to the DNS server.
  C. Ping the IP address of the IPS server to verify connectivity.
  D. On the installation server, verify that the menu.1st file for the client points to a valid boot arc hive.
  E. Run df -k to verify that the boot directory containing the boot archive is loopback mounted under /etc/netboot.
  F. Run the command /sbin/dhcpinfo DNSserv to ensure that the DHCP server providing the DNS server information.
  A. Verify the contents of /etc/resolve.conf.
  B. Run netstat -nr to verify the routing to the DNS server.
  F. Run the command /sbin/dhcpinfo DNSserv to ensure that the DHCP server providing the DNS server information.

  ---

  Check DNS

  *

  (A) Check whether DNS is configured on your client by verifying that a non-empty /etc/resolv.conf file exists.

  *

  (F) If /etc/resolv.conf does not exist or is empty, check that your DHCP server is providing DNS server information to the client:

  # /sbin/dhcpinfo DNSserv

  If this command returns nothing, the DHCP server is not set up to provide DNS server information to the client. Contact your DHCP administrator to correct this problem.

  *

  (B) If an /etc/resolv.conf file exists and is properly configured, check for the following possible problems and contact your system administrator for resolution:

  ** The DNS server might not be resolving your IPS repository server name.

  ** No default route to reach the DNS server exists.

• Question 132:

  You are troubleshooting a newly installed desktop Oracle Solaris 11 system with a single network interface. From this system, you can connect to other systems within the company intranet, but cannot access any external services (such as websites and email), even when using IP addresses.

  Examining the routing table confirms that the default route to 192.168.1.1 is missing. DHCP is not used at this site. Which two commands will temporarily mid permanently configure the default route?

  A. ipadm set-gateway 192.168.1.1
  B. route add default 192.168.1.1
  C. ipadm set-default 192.168.1.1
  D. dladm route-add -d 192.168.1.1
  E. echo 192.168.1.1 >/etc/gateway
  F. echo 192.168.1.1 >/etc/defaultrouter
  B. route add default 192.168.1.1
  F. echo 192.168.1.1 >/etc/defaultrouter

  ---

  B: Setting the default route on Solaris is easy. If you are trying to just set the route temporarily you can use the route command:

  Route add default

  Example:

  Route add default 192.168.1.1

  Note: Route command manipulates the kernel routing tables. Routing is the process of forwarding a packet from one computer to another. It is based on the IP address in the IP packet header and netmask.

  F: If you want the route to be persisted when you reboot the system, you will need to set the route in the /etc/defaultrouter file.

  /etc/defaultrouter

  Example:

  Echo 192.168.1.1 > /etc/defaultrouter

• Question 133:

  The /usr/bin/p7zip file that is part of the p7zip package has been overwritten. This server is critical to production and cannot be rebooted. Identify the command that would restore the file without requiring a reboot.

  A. pkg verify p7zip
  B. pkg fix p7sip
  C. pkg rebuild-index p7zip
  D. pkg revert p7zip
  E. pkg uninstsll p7zip
  F. pkg install p7zip
  G. pkg install --no-backup-be p7sip
  H. pkg refresh p7zip
  D. pkg revert p7zip

  ---

  Use the pkg revert command to restore files to their as-delivered condition.

• Question 134:

  You create a flash archive of the Solaris 10 global zone on the serves named sysA. The archive name is s10-system.flar, and it is stored on a remote server named backup_server.

  On sysA, you create a Solaris 10 branded zone named s10-zone.

  You want to use the flash archive, located On" /net/bactup_servers/10-system.flar, to install the Operating system in the s10-zone zone.

  Which command do you choose to install the s10-system.flar archive in the Solaris 10 branded zone (s10-zone)?

  A. zoneadm -z s10 -zone install - a /net/backup_server/s10-system.flar -u
  B. zonecfg -z s10 -zone install - a /net/backup_server/s10-system.flar -u
  C. zoneadm - z s10 -zone clone - s /net/backup_server/s10-system.flar
  D. zone cfg - a s10-zone create - t SUNWsolaris10\
  E. zonecfg -z s10-zone install -f /net/backup/backup_server/s10-system.flar
  A. zoneadm -z s10 -zone install - a /net/backup_server/s10-system.flar -u

  ---

  The zoneadm command is the primary tool used to install and administer non-global zones. Operations using the zoneadm command must be run from the global zone on the target system.

  How to Install the solaris10 Branded Zone A configured solaris10 branded zone is installed by using the zoneadm command with the install subcommand. Example: global# zoneadm -z s10-zone install -a /net/machine_name/s10-system.flar -u

• Question 135:

  You have completed configuring a zone named dbzone on your Solaris 11 server. The configuration is as following:

  

  The global zone displays the following network information:

  

  The zone has never been booted. Which three options correctly describe this zone?

  A. It is a sparse root zone.
  B. It is a whole root zone.
  C. It is an immutable zone.
  D. It is a native zone.
  E. The zone shares the network interface with the host.
  F. The zone uses a virtual network interface.
  G. The hostid is the same as the global zone.
  H. The IP address of the zone is 10.0.2.18.
  C. It is an immutable zone.
  E. The zone shares the network interface with the host.
  G. The hostid is the same as the global zone.

  ---

  C: Immutable Zones provide read-only file system profiles for solaris non-global zones.

  Note that ip-type: exclusive:

  Starting with OpenSolaris build 37 and Oracle Solaris 10 8/07, a default zone can be configured as an "exclusive-IP zone" which gives it exclusive access to the NIC(s) that the zone has been assigned. Applications in such a zone can

  communicate directly with the NIC(s) available to the zone.

  Note on zones:

  After installing Oracle Solaris on a system, but before creating any zones, all processes run in the global zone. After you create a zone, it has processes that are associated with that zone and no other zone. Any process created by a process

  in a non-global zone is also associated with that non-global zone.

  Any zone which is not the global zone is called a non-global zone. Most people call non- global zones simply "zones." Some people call them "local zones" but this is discouraged.

  The default native zone file system model on Oracle Solaris 10 is called "sparse-root." This model emphasizes efficiency and security at the cost of some configuration flexibility. Sparse-root zones optimize physical memory and disk space

  usage by sharing some directories, like /usr and /lib. Sparse-root zones have their own private file areas for directories like /etc and /var. Whole-root zones increase configuration flexibility but increase resource usage. They do not use shared

  file systems for /usr, /lib, and a few others. There is no supported way to convert an existing sparse-root zone to a whole-root zone.

  Creating a new zone is required.

• Question 136:

  You need to know the IP address configured on interface net3, and that the interface is up. Which command confirms these?

  A. ipadm show-if
  B. ipadm up-addr
  C. ipadm show-addr
  D. ipadm enable-if
  E. ipadm refresh-addr
  F. ipadm show-addrprop
  C. ipadm show-addr

  ---

  Show address information, either for the given addrobj or all the address objects configured on the specified interface, including the address objects that are only in the persistent configuration.

  State can be: disabled, down, duplicate, inaccessible, ok, tentative

  Example: # ipadm show-addr ADDROBJ TYPE STATE ADDR lo0/v4 static ok 127.0.0.1/8 lo0/v6 static ok ::1/128

• Question 137:

  User jack, whose account is configured to use the korn shell, logs in and examines the value of his PATH environment variable:

  

  What will happen, and why?

  A. He will get a "file not found" error, because the current directory is not in his seaech path.
  B. He will get a "file not found" error, because his home directory is not in his search path.
  C. The useradd script will execute, because jack is in the same directory that the script is located in.
  D. The command /user/sbin/useradd will execute, because it is the last match in the search path.
  E. The command /user/sbin/useradd will execute, because it is the first match in the search path.
  D. The command /user/sbin/useradd will execute, because it is the last match in the search path.

• Question 138:

  You need to install the solaris-desktop group package. Which command would you use to list the set of packages included in that software group?

  A. pkg search
  B. pkg info
  C. pkginfo
  D. pkg contents
  A. pkg search

  ---

  Use the pkg search command to search for packages whose data matches the specified pattern.

  Like the pkg contents command, the pkg search command examines the contents of packages. While the pkg contents command returns the contents, the pkg search command returns the names of packages that match the query.

• Question 139:

  Review the ZFS dataset output that is displayed on your system:

  

  Which four correctly describe the output?

  A. /data/file4 has been added.
  B. The link /data/file3 has been added.
  C. /data/file3 has been renamed to /data/file13.
  D. /data/file4 has been modified and is now larger.
  E. /data/file1 has been deleted.
  F. /data/file1 has been modified and is now smaller.
  G. /data/file5 has been modified.
  H. /data/file3 (a link) has been removed.
  A. /data/file4 has been added.
  C. /data/file3 has been renamed to /data/file13.
  E. /data/file1 has been deleted.
  G. /data/file5 has been modified.

  ---

  A: + Indicates the file/directory was added in the later dataset

  C: R Indicates the file/directory was renamed in the later dataset

  E: - Indicates the file/directory was removed in the later dataset

  G: M Indicates the file/directory was modified in the later dataset

  Note: Identifying ZFS Snapshot Differences (zfs diff) You can determine ZFS snapshot differences by using the zfs diff command.

  The following table summarizes the file or directory changes that are identified by the zfs diff command.

  File or Directory Change Identifier

  *

  File or directory is modified or file or directory link changed M

  *

  File or directory is present in the older snapshot but not in the newer snapshot -

  *

  File or directory is present in the newer snapshot but not in the older snapshot +

  *

  File or directory is renamed R

• Question 140:

  You have a process called bigscript, and you need to know the PID number for this process. Which command will provide that information?

  A. pkill bigscript
  B. ps bigscript
  C. pgrep bigscript
  D. prstat bigscript
  C. pgrep bigscript

  ---

  Pgrep takes a process name and return a PID.

  Note: pgrep looks through the currently running processes and lists the process IDs which matches the selection criteria to stdout. All the criteria have to match. For example, pgrep - u root sshd will only list the processes called sshd AND owned by root.

  Incorrec answers:

  ps bigscript: You can't pass a name to ps, it interprets it as arguments.