oracle 1z0-100 practice test

Oracle Linux 5 and 6 System Administration Exam

page 1 out of 10

Viewing questions 1-15 out of 141


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
0 / 1000

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
0 / 1000

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
0 / 1000

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
0 / 1000

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
0 / 1000

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
0 / 1000

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
0 / 1000

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
0 / 1000

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
0 / 1000

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
0 / 1000

Question 11

What is the default volume or device type for swap space in Oracle Linux, when choosing the “basic
storage devices” option during the install? (Choose the best answer.)

  • A. Zip
  • A. a partition on a Logical Volume Manager Logical (LVM) managed volume
  • B. Bzip2
  • B. a partition on a local hard disk
  • C. Gzip
  • C. a Linux Multi Disk (MD) driver device
  • D. Xz
  • D. a partition on a flash disk
  • E. Cpio
  • E. a swap file on the root file system
Answer:

B

Discussions
0 / 1000

Question 12

An Oracle Linux system has not been updated for a while and the currently running kernel is three
releases behind the most recent kernel release.
Each released kernel fixed several problems, totaling 11 bug fixes.
You are about to update this kernel using this command:

How does Ksplice Uptrack apply these updates? (Choose the best answer.)

  • A. It fails with an error because the sendmail-cf package depends on the package being removed.
  • A. It downloads three updates, clones the running kernel in memory, applies the updates in one single atomic update, and uses Kexec to activate the updated kernel
  • B. It succeeds and removes both the sendmail and sendmail-cf packages.
  • B. It downloads 11 updates and applies them one by one to the running kernel
  • C. It succeeds and only removes the sendmail package.
  • C. It downloads 11 updates and applies them in a single transaction to the running kernel
  • D. It removes the sendmail packages and raises a warning about the sendmail-cf package, which depends on the package being removed.
  • D. It downloads three updates and applies them in a single transaction to the running kernel
  • E. It removes the sendmail package and prompts you for the option to remove the sendmail-cf package.
Answer:

B

Discussions
0 / 1000

Question 13

Which three statements are true about the Oracle Linux Multiple Device Driver (MD)? (Choose
three.)

  • A. Only messages with a priority of info from all facilities are sent to /var/log/messages.
  • A. RAID devices can only be built on disk partitions
  • B. Only messages with a priority of notice from the news facility are sent to /var/log/spooler.
  • B. It can be configured to have spare devices
  • C. Messages with a priority of debug or higher from the mail facility are sent to /var/log/message
  • C. It supports striping, mirroring, and a combination of striping and mirroring
  • D. Only messages with a priority of debug from the mail facility are sent to /var/log/messages.
  • D. It includes snapshot functionality
  • E. It can be used to mirror the root filesystem
Answer:

B,C,D

Discussions
0 / 1000

Question 14

What is the purpose of setting USERCTL=yes In an interface configuration file located in
/etc/sysconfig/network-scripts? (Choose the best answer.)

  • A. Using the echo command to write values to specific files in the /sys directory
  • A. to allow a non-root user to bring a network interface up or down using the ifup and ifdown commands
  • B. Issuing the sysct1 -w command to write values to specific files in the /proc/sys directory
  • B. to allow a non-root user to bring a network interface up or down using the ifconfig command
  • C. Issuing the sysct1 -w command to write values to specific files in the /sys directory
  • C. to allow a non-root user to bring a network interface up or down using the ethtool command
  • D. Adding to or modifying parameters in /etc/sysct1.conf and issuing the sysct1 -p command
  • D. to allow a non-root user to bring a network interface up or down using the ifup, ifdown, and ifconfig commands
  • E. Using the echo command to write values to specific files in the /proc/sys directory
Answer:

D

Discussions
0 / 1000

Question 15

What is the purpose of executing 1vconvert –m1 …? (Choose the best answer.)

  • A. Oracle Database 11g Enterprise Edition single instance
  • A. to detach a copy from a mirrored logical volume
  • B. Oracle WebLogic
  • B. to reattach a detached copy back to its original logical volume
  • C. Oracle Database Enterprise Edition Real Application Cluster
  • C. to add an additional copy to an already mirrored logical volume
  • D. Oracle Enterprise Manager Cloud Control
  • D. D. to convert a linear logical volume into a mirrored logical volume
  • E. Oracle Database 11g Standard Edition single instance
  • E. to convert a mirrored logical volume into a linear logical volume
Answer:

D

Discussions
0 / 1000
To page 2