oracle 1z0-100 practice test

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

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

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

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

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

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:

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

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

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

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