Oracle 1Z0-100 Online Practice Questions and Exam Preparation

Oracle 1Z0-100 Online Questions & Answers

• Question 81:

  Which three actions may be performed using the date command in Oracle Linux?

  A. Setting the hardware clock from the current system time
  B. Setting the system time from the hardware clock
  C. Displaying the current time in an administrator-specified format
  D. Displaying the time and date in the future
  E. Displaying the time and date in the past
  F. Synchronizing the system time from an ntp server
  B. Setting the system time from the hardware clock
  C. Displaying the current time in an administrator-specified format
  F. Synchronizing the system time from an ntp server

• Question 82:

  Which three statements are true when using the Anaconda Installer to install Oracle Linux?

  A. Unattended installation is only possible if installing the Unbreakable Enterprise kernel.
  B. The installation may be done from an NFS-mounted Image.
  C. Unattended installation is only possible if installing the Red Hat-compatible kernel.
  D. The installation may be done from a USB device.
  E. The installation may be done in text or graphical mode.
  B. The installation may be done from an NFS-mounted Image.
  C. Unattended installation is only possible if installing the Red Hat-compatible kernel.
  E. The installation may be done in text or graphical mode.

  ---

  C: The Red Hat Enterprise Linux installation process automatically writes a Kickstart file that contains the settings for the installed system. This file is always saved as /root/anaconda-ks.cfg. You may use this file to repeat the installation with identical settings, or modify copies to specify settings for other systems.

  E: Anaconda offers a text-mode and GUI mode.

• Question 83:

  Which two statements correctly describe the type of Information and the behavior of files in the proc filesystem on Oracle Linux 6?

  A. It is not possible to write to any file in the proc filesystem.
  B. The /proc/cmdline file contains the parameters passed to the kernel.
  C. Each process has a directory named for the process number in the proc filesystem.
  D. The proc filesystem contains the same hardware information that is contained in the sys filesystem for backward compatibility.
  E. Each process thread has a directory named for the process thread number in the proc files/stem.
  A. It is not possible to write to any file in the proc filesystem.
  B. The /proc/cmdline file contains the parameters passed to the kernel.

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  B: proc/cmdline This file shows the parameters passed to the kernel at the time it is started. A sample /proc/cmdline file looks like the following: ro root=/dev/VolGroup00/LogVol00 rhgb quiet 3

  Note:

  /proc is very special in that it is also a virtual filesystem. It's sometimes referred to as a process information pseudo-file system. It doesn't contain 'real' files but runtime system information (e.g. system memory, devices mounted, hardware

  configuration, etc). For this reason it can be regarded as a control and information centre for the kernel. In fact, quite a lot of system utilities are simply calls to files in this directory.

• Question 84:

  Refer to the Exhibit.

  [root@server1 ~ # 1s -1 /usr/bin/passwd

  -r-x--x--x 1 root root 21200 oct 7 21:01 /usr/bin/passwd

  [root@server1 ~] # 1s -1 /etc/shadow

  -r - - - - - - - - 1 root root 1818 Mar 7 10:31 /etc/shadow] [root@server1 ~]#

  A user smith is on your system complained that he is not able to change his password. As the administrator, you long-listed the passwd command and the /etc/shadow file.

  View the Exhibit that shows the output.

  What must you do to enable this user to change his password?

  A. Set SGID on /usr/bin/passwd.
  B. Set SUID on /usr/bin/passwd.
  C. Set sticky bit on /usr/bin/passwd.
  D. Set read and write permission for others on /etc/shadow.
  E. Set permission on /etc/shadow to 600.
  D. Set read and write permission for others on /etc/shadow.

• Question 85:

  Which three statements are correct about NFSV4?

  A. It relies on the LOCKD and RPC.STATD daemons to perform file locking.
  B. It uses a single port (2049) for all client/server communications.
  C. The UID and GID for a particular user must be the same on both client and server to avoid file ownership problems.
  D. It has support for filesystem quotas.
  E. RPC.IDMAPD is used to map a UID to its username and a GID to its group name and vice versa.
  D. It has support for filesystem quotas.
  E. RPC.IDMAPD is used to map a UID to its username and a GID to its group name and vice versa.

  ---

  D: rpc.rquotad

  Provides quota information for the quota command to display user quotas for remote file systems and the edquota command to set quotas on remote file systems.

  E: Setting up idmapd for static UID/GID mapping is a matter of 6 8 (at most) trivial configuration lines in / etc/idmapd.conf

  Incorrect:

  not A: The mounting and locking protocols are also integrated into the NFSv4 protocol, so the lockd and rpc.statd services are also not required.

• Question 86:

  Which three statements correctly describes the purpose of and administration of kernel boot parameters in Oracle Linux?

  A. Kernel boot parameters may be specified in /boot/grub/grub/conf.
  B. Kernel boot parameters used to boot the running system may be examined after boot by Viewing /boot/ grub/grub/conf.
  C. Kernel boot parameters used to boot the running system may be examined after boot by viewing /proc/ cmdline.
  D. Additional kernel boot parameters may be specified in an administrator-specified parameter file that is read by grub stage.
  E. Additional kernel boot parameters may be specified from the grub command line.
  F. Additional kernel boot parameters may be specified in an administrator-specified parameters that is read by GRUB stage1_5.
  A. Kernel boot parameters may be specified in /boot/grub/grub/conf.
  B. Kernel boot parameters used to boot the running system may be examined after boot by Viewing /boot/ grub/grub/conf.
  E. Additional kernel boot parameters may be specified from the grub command line.

  ---

  * GRUB requires only the file name and drive partitions to load a kernel. You can configure this information by editing the /boot/grub/grub.conf file, by using the GRUB menu, or by entering it on the command line.

• Question 87:

  Which three tasks should be performed to configure a host to act as an SSH server?

  A. The openssh-server package must be installed.
  B. The sshd service must be started.
  C. The openssh package must be installed.
  D. The openssh-client package must not be installed.
  E. The ssh-agent must be running.
  A. The openssh-server package must be installed.
  C. The openssh package must be installed.
  E. The ssh-agent must be running.

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  Reference: https://access.redhat.com/site/documentation/en- US/Red_Hat_Enterprise_Linux/6/html/ Deployment_Guide/s2-ssh-configuration-sshd.html

• Question 88:

  Examine these details from the sysctl.conf file and from the proc file system:

  [root@FAROUT fs]# grep aio-max-nr /etc/sysctl.conf # oracle-rdbms-server-11gR2-preinstall setting for fs.aio-mx-nr is 1048576 fs.aio-max-nr = 1048576

  [root@FAROUT fs] # cat /proc/sys/fs/aio-max-nr

  [root@FAROUT fs] # rpm 璹 libaio Libaio-0.0.107-10.e16.x86_64 Libaio-0.3.107-10.e76.i686

  Which statement is true about the setting created by oracle-rdbms-server-11gR2-preinstall?

  A. It allows a process to request an I/O without waiting for reply.
  B. It allows two or more processes to request I/O simultaneously while running on different CPUs.
  C. It allows a process to request a single I/O without awaiting for a reply. However, if a second I/O is requested, then the process must wait.
  D. It allows two or more processes to request I/Os and then to both be notified when both of them complete.
  B. It allows two or more processes to request I/O simultaneously while running on different CPUs.

• Question 89:

  Examine these configuration files: # cat /etc/auto.master /net -hosts /- auto.direct ro

  # cat /etc/auto.direct

  /nfs1 o16:/export/share1 /nfs2 -sync o16:/export/share2 /nfs o16:/export/share3

  Which mount options will automounter use to mount the filesystems listed in /etc/auto.direct?

  A. All three filesystems are mounted read-only, async.
  B. /nfs1 and /nfs3 are mounted read-only, async whereas /nfs2 mounted read-write, sync.
  C. /nfs1 and /nfs3 are mounted read-only, async whereas /nfs2 mounted read-only, sync.
  D. All three filesystems are mounted read-write, sync.
  D. All three filesystems are mounted read-write, sync.

• Question 90:

  Which statement is true concerning the /etc/sysconfig directory and its files and subdirectories?

  A. The contents are always the same for a specific version of the Oracle Linux Kernel.
  B. The file /etc/sysconfig/init is used by upstart to control the attributes of the tty devices that get started.
  C. The directory /etc/sysconfig/network-scripts contains files that must not be modified while the network is up.
  D. The files only contain default values for certain daemon processes.
  B. The file /etc/sysconfig/init is used by upstart to control the attributes of the tty devices that get started.

  ---

  The /etc/sysconfig/init file controls how the system appears and functions during the boot process.

  Note: The /etc/sysconfig directory contains files that control your system's configuration. The contents of this directory depend on the packages that you have installed on your system