Oracle 1Z0-100 Online Practice Questions and Exam Preparation

Oracle 1Z0-100 Online Questions & Answers

• Question 1:

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

  A. echo can be used to change values for various system parameters
  B. sysctl –w can be used to change values for various system parameters
  C. Changes made using echo are lost after rebooting the system
  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
  A. echo can be used to change values for various system parameters
  B. sysctl –w can be used to change values for various system parameters
  D. Changes made using sysctl –w are preserved after rebooting the system

• 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. Run ntpd at system boot to ensure that the system clock is synchronized with the reference time server
  B. Run rdate at system boot to ensure that the system clock is synchronized with the reference time server
  C. Run the ntpdate daemon to update the system clock, thereby keeping it synchronized with the reference time server
  D. Run ntpdate at system boot to ensure that the system clock is synchronized with the reference time server
  E. Run the ntpd daemon to update the system clock, thereby keeping it synchronized with the reference time server
  F. Run the rdate daemon to update the system clock, thereby keeping it synchronized with the reference time server
  A. Run ntpd at system boot to ensure that the system clock is synchronized with the reference time server
  B. Run rdate at system boot to ensure that the system clock is synchronized with the reference time server
  D. Run ntpdate at system boot to ensure that the system clock is synchronized with the reference time server

• 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. The goodbred account has default values assigned from the /etc/login.defs file
  B. The goodbred account has /sbin/nologin as the shell in /etc/passwd
  C. The goodbred account has default values assigned from the /etc/default/useradd file
  D. The goodbred account is locked
  E. The goodbred account will never have files copied from /etc/skel to the /etc/home/goodbred directory
  A. The goodbred account has default values assigned from the /etc/login.defs file
  B. The goodbred account has /sbin/nologin as the shell in /etc/passwd
  E. The goodbred account will never have files copied from /etc/skel to the /etc/home/goodbred directory

• Question 4:

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

  A. OSWbb is a part of the standard Oracle Linux distribution
  B. OSWbb is an Oracle product and must be installed after system installation using yum or rpm
  C. OSWbb is an Oracle product and is installed by downloading is from MOS and unpacking a tar file
  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
  C. OSWbb is an Oracle product and is installed by downloading is from MOS and unpacking a tar file
  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

• Question 5:

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

  A. It can update both the Unbreakable Enterprise Kernel (UEK) as well as the Red Hat compatible kernel
  B. It can update both the running kernel in memory and the corresponding kernel image on disk
  C. It requires access to the Internet, either direct or via a proxy server
  D. It can update the kernel without rebooting the system
  E. Updates to the Ksplice software are installed automatically
  B. It can update both the running kernel in memory and the corresponding kernel image on disk
  D. It can update the kernel without rebooting the system

• Question 6:

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

  A. requisite flagged modules are ignored if they fail
  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. 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. 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 module's type have been checked
  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

  ---

  explanation:

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

  required — the module must be successfully checked in order to allow authentication. If a required module check fails, the user is not notified until all other modules of the same module type have been checked.

  requisite — the module must be successfully checked in order for the authentication to be successful. However, if a requisite module check fails, the user is notified immediately with a message reflecting the first

  failed required or requisite module.

  sufficient — the module checks are ignored if it fails. But, if a sufficient flagged module is successfully checked and no required flagged modules above it have failed, then no other modules of this module type are checked and the user is

  authenticated.

  optional — the module checks are ignored if it fails. If the module check is successful, it does not play a role in the overall success or failure for that module type. The only time a module flagged as optional is necessary for successful

  authentication is when no other modules of that type have succeeded or failed. In this case, an optional module determines the overall PAM authentication for that module type.

  Reference: http://www.unix-info.org/RH_Guid.80/rhl-rg-en-8.0/s1-pam-control-flags.html

• Question 7:

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

  A. A user may use su to start a new shell
  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. Using su-test to switch to the test user does not run the test user's login scripts
  D. The /etc/sudoers file may be edited to prevent a user from using su to switch to another user
  E. The /etc/sudoers file may be edited to allow a use to execute certain root-owned executables with root privileges
  F. The /etc/sudoers file may be edited to prevent root from executing certain executables unless a password is provided
  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
  E. The /etc/sudoers file may be edited to allow a use to execute certain root-owned executables with root privileges
  F. The /etc/sudoers file may be edited to prevent root from executing certain executables unless a password is provided

• Question 8:

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

  A. An RPM can be installed from a local filesystem or a remote repository using the rpm command
  B. In general, it is possible to have multiple versions of the same RPM package installed on a single system
  C. a source RPM is machine architecture dependent
  D. a binary RPM contains compiled programs as well as the source code of these programs
  E. a RPM package can contain programs, documentation installation procedures, source files, and metadata about itself
  A. An RPM can be installed from a local filesystem or a remote repository using the rpm command
  C. a source RPM is machine architecture dependent

• 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 status of the slave interface eth2 changes to up and becomes a backup slave
  B. The status of the slave interface eth2 changes to up and becomes a second active slave.
  C. The status of the slave interface eth2 changes to up but must be manually assigned the active or backup slave role.
  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
  B. The status of the slave interface eth2 changes to up and becomes a second active slave.

• Question 10:

  Select the two keywords used in /etc/rsyslog.conf that perform these two tasks: (Choose two.)

  1.

  load modules

  2.

  implement log message formatting

  A. template
  B. $ModLoad
  C. $template
  D. $Load
  E. ModLoad
  A. template
  B. $ModLoad