oracle 1z0-100 practice test

Oracle Linux 5 and 6 System Administration Exam


Question 1

Which three statements are true about maintaining system parameters in Oracle Linux? (Choose
three.)

  • A. 1-d, 2-a, 3-b, 4-c
  • A. echo can be used to change values for various system parameters
  • B. 1-d, 2-b, 3-a, 4-c
  • B. sysctl –w can be used to change values for various system parameters
  • C. 1-a, 2-c, 3-b, 4-d
  • C. Changes made using echo are lost after rebooting the system
  • D. 1-a, 2-b, 3-c, 4-d
  • D. Changes made using sysctl –w are preserved after rebooting the system
  • E. Changes made to /etc/sysctl.conf take effect immediately after saving the file
Answer:

A,B,D

Discussions

Question 2

Which two actions should an Oracle Linux administrator perform to configure a server so that its
clock is synchronized with a reference time server? (Choose two.)

  • A. Apache Web Server
  • A. Run ntpd at system boot to ensure that the system clock is synchronized with the reference time server
  • B. Documentation
  • B. Run rdate at system boot to ensure that the system clock is synchronized with the reference time server
  • C. X Windowing system
  • C. Run the ntpdate daemon to update the system clock, thereby keeping it synchronized with the reference time server
  • D. Oracle Database Server 11g
  • D. Run ntpdate at system boot to ensure that the system clock is synchronized with the reference time server
  • E. Red Hat compatible kernel
  • E. Run the ntpd daemon to update the system clock, thereby keeping it synchronized with the reference time server
  • F. Oracle WebLogic Server 11g
  • F. Run the rdate daemon to update the system clock, thereby keeping it synchronized with the reference time server
Answer:

A,D

Discussions

Question 3

You attempt to create a new user on Oracle Linux with nothing but a username:
useradd goodbred
Which three statements are true? (Choose three.)

  • A. downgrading an installed system
  • A. The goodbred account has default values assigned from the /etc/login.defs file
  • B. booting an installed system from a local drive
  • B. The goodbred account has /sbin/nologin as the shell in /etc/passwd
  • C. attempting a rescue to repair problems with a partition table that prevents booting an installed system
  • C. The goodbred account has default values assigned from the /etc/default/useradd file
  • D. deinstalling an installed system
  • D. The goodbred account is locked
  • E. upgrading an installed system
  • E. The goodbred account will never have files copied from /etc/skel to the /etc/home/goodbred directory
Answer:

A,B,E

Discussions

Question 4

Which three statements describe the OSWatcher Black Box (OSWbb) system monitoring and
troubleshooting tool? (Choose three.)

  • A. To prevent a network interface from being brought up during system startup
  • A. OSWbb is a part of the standard Oracle Linux distribution
  • B. To prevent a slave network interface from being brought up during system startup
  • B. OSWbb is an Oracle product and must be installed after system installation using yum or rpm
  • C. To prevent an alias network interface from being brought up during system startup
  • C. OSWbb is an Oracle product and is installed by downloading is from MOS and unpacking a tar file
  • D. To prevent a master network interface from being brought up during system startup
  • D. OSWbb is a set of scripts using traditional UNIX monitoring tools to gather system activity and performance data
  • E. OSWbb maintains an archive of text files containing gathered statistics
  • F. OSWbb is designed to work with any POSIX-compliant shell
Answer:

C,D,E

Discussions

Question 5

Which two statements are true about the Ksplice patching feature feature of Oracle Linux when
running in standard mode? (Choose two.)

  • A. A device failed and has been removed from this RAID set.
  • A. It can update both the Unbreakable Enterprise Kernel (UEK) as well as the Red Hat compatible kernel
  • B. It is no longer possible to write to this RAID set.
  • B. It can update both the running kernel in memory and the corresponding kernel image on disk
  • C. Read and write performance is no longer optimal on this RAID set.
  • C. It requires access to the Internet, either direct or via a proxy server
  • D. This RAID set was built without a spare device.
  • D. It can update the kernel without rebooting the system
  • E. Only Write performance is no longer optimal on this RAID set.
  • E. Updates to the Ksplice software are installed automatically
Answer:

B,D

Discussions

Question 6

Which statement correctly describes the requisite PAM control flag? (Choose the best answer.)

  • A. OSWbb is a part of the standard Oracle Linux distribution
  • A. requisite flagged modules are ignored if they fail
  • B. OSWbb is an Oracle product and must be installed after system installation using yum or rpm
  • B. requisite flagged modules must be successfully checked for authentication to succeed. If a requisite module checks fails, the user is notified immediately with a message reflecting the first failed required or requisite module
  • C. OSWbb is an Oracle product and is installed by downloading is from MOS and unpacking a tar file
  • C. requisite items only play a role when no other modules of that module type have succeeded or failed. In that case, the success or failure of a requisite flagged module determines the overall PAM authentication for that module type
  • D. OSWbb is a set of scripts using traditional UNIX monitoring tools to gather system activity and performance data
  • D. requisite flagged modules must be successfully checked for authentication to succeed. If a requisite module checks fails, the user is not notified until all other modules of the same modules type have been checked
  • E. OSWbb maintains an archive of text files containing gathered statistics
  • F. OSWbb is designed to work with any POSIX-compliant shell
Answer:

B

Explanation:
Four types of control flags are defined by the PAM standard:
References:

Discussions

Question 7

Which three statements are true regarding the use and administration of su and sudo in Oracle
Linux? (Choose three.)

  • A. It is a new name for oracle-validated package from Oracle Linux 5 that sets parameters to the same values.
  • A. A user may use su to start a new shell
  • B. It creates the oracle user if not already created, which owns the Grid Infrastructure software should that get installed.
  • B. The /etc/sudoers file may be edited to permit certain executables to be used with root privileges only if they are run on certain hosts
  • C. It creates the grid user if not already created which owns the grid infrastructure software should that get installed.
  • C. Using su-test to switch to the test user does not run the test user’s login scripts
  • D. It modifies kernel parameters in /etc/sysctl.conf.
  • D. The /etc/sudoers file may be edited to prevent a user from using su to switch to another user
  • E. It runs at the first boot after installing the packages to set a parameter indicating that is has run once.
  • E. The /etc/sudoers file may be edited to allow a use to execute certain root-owned executables with root privileges
  • F. It modifies parameters in the /etc/sysconfig/network-scripts directly.
  • F. The /etc/sudoers file may be edited to prevent root from executing certain executables unless a password is provided
  • G. It creates the osoper group, if not already created.
Answer:

B,E,F

Discussions

Question 8

Which two statements are true about an RPM package? (Choose two.)

  • A. Create a ULN account if it doesn't exist already.
  • A. An RPM can be installed from a local filesystem or a remote repository using the rpm command
  • B. Ensure you have a valid Oracle Linux support agreement.
  • B. In general, it is possible to have multiple versions of the same RPM package installed on a single system
  • C. Install the uln_register.tgz package.
  • C. a source RPM is machine architecture dependent
  • D. Install the uln_register.tgz and uln_register-gnome.tgz packages.
  • D. a binary RPM contains compiled programs as well as the source code of these programs
  • E. Run the uln_register command as the root user and answer the prompts.
  • E. a RPM package can contain programs, documentation installation procedures, source files, and metadata about itself
  • F. Install the Unbreakable Enterprise kernel (UEK).
  • G. Run the yum update command.
  • H. Reboot your system.
Answer:

A,C

Discussions

Question 9

Examine the output of a bonded interface configuration from which one network cable has been
unplugged:

Which statement is true when you plug in the eth2 network cable?

  • A. The file system was exported on host o16 using the ROOT_SQUASH option.
  • A. The status of the slave interface eth2 changes to up and becomes a backup slave
  • B. The /export filesystem was mounted with the NOEXEC option on host o16.
  • B. The status of the slave interface eth2 changes to up and becomes a second active slave.
  • C. The filesystem mounted on /mnt was mounted with the NOEXEC option.
  • C. The status of the slave interface eth2 changes to up but must be manually assigned the active or backup slave role.
  • D. The filesystem was exported on host o16 by using the NO_ROOT_SQUASH option.
  • D. The status of the slave interface eth2 changes to up and is promoted to the primary active slave whereas eth1 becomes the backup slave
Answer:

B

Discussions

Question 10

Select the two keywords used in /etc/rsyslog.conf that perform these two tasks: (Choose two.)
load modules
implement log message formatting

  • A. All changes made using the grub editor at boot time are saved by default to /boot/grub/grub, conf. To use the GRUB command line, press C. If you press E, select the root, kernel, or initrd directive, and press E to edit it. Not E: Grub can be password protected, but not individual functions.
  • A. template
  • B. Additional parameters may be passed to the selected kernel.
  • B. $ModLoad
  • C. The initrd directive may not be changed.
  • C. $template
  • D. Existing kernel parameters may be changed.
  • D. $Load
  • E. Some of the GRUB command-line functions may be password protected. To edit the kernel directive only, press
  • E. ModLoad
Answer:

A,B

Discussions
To page 2