Oracle 1Z0-100 Online Practice Questions and Exam Preparation

Oracle 1Z0-100 Online Questions & Answers

• Question 61:

  Examine this /etc/fstab entry:

  

  Identify the actions you must perform to relocate this filesystem permanently to its new mount point?

  A. 1, 2, 3, 4, 5, 6 and 7
  B. 1, 2, 3, 4, 5 and 6
  C. 1, 2, 5 and 6
  D. 1, 2, 5, 6 and 7 ^
  E. 1, 2 and 6
  D. 1, 2, 5, 6 and 7 ^

• Question 62:

  The SSHD service is controlled by the script in /etc/init.d/sshd, part of which is shown here:

  [root@FAROUT ~] cat /etc/init.d/sshd # !/bin/bash # # sshd Start up the OpenSSH server daemon # # chkconfig: 2345 55 25 # description: SSH is a protocol for secure remite shell access. \ # This service starts up the Open SSH server daemon. #

  You issue chkconfig commands to change the sshd service:

  [root@FAROUT ~] # chkconfig sshd off [root@FAROUT ~] # chkconfig sshd reset

  What is the result of the two commands issued?

  A. The sshd service configuration is restored to the settings that existed before setting it off.
  B. The sshd service configuration is restored to start In run levels 2, 3, 4 and 5.
  C. The sshd service configuration is restored to start in run levels 2 and 5 only.
  D. The sshd service configuration is restored to those that existed after the operating system was first installed.
  D. The sshd service configuration is restored to those that existed after the operating system was first installed.

• Question 63:

  Which three statements are true about the shared directories defined in the /etc/exports file?

  A. By default, a directory is shared with no root squashed.
  B. By default, a directory is shared read write.
  C. By default, a directory is shared with root squashed.
  D. By default, a directory is shared read only.
  E. By default, a directory is shared sync.
  C. By default, a directory is shared with root squashed.
  D. By default, a directory is shared read only.
  E. By default, a directory is shared sync.

  ---

  C (not A): Very often, it is not desirable that the root user on a client machine is also treated as root when accessing files on the NFS server. To this end, uid 0 is normally mapped to a different id: the so-called anonymous or nobody uid. This mode of operation (called 'root squashing') is the default, and can be turned off with no_root_squash.

  E: In releases of nfs-utils up to and including 1.0.0, the async option was the default. In all releases after 1.0.0, sync is the default, and async must be explicitly requested if needed.

• Question 64:

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

  A. RAID devices can only be built on disk partitions
  B. It can be configured to have spare devices
  C. It supports striping, mirroring, and a combination of striping and mirroring
  D. It includes snapshot functionality
  E. It can be used to mirror the root filesystem
  B. It can be configured to have spare devices
  C. It supports striping, mirroring, and a combination of striping and mirroring
  D. It includes snapshot functionality

• Question 65:

  Examine the channel specification in the /etc/yum.repos.d/public-yum-016.repo file:

  

  What is the effect of the gpgcheck=0 setting?

  A. yum will not check for dependencies when installing packages from this channel
  B. yum will not perform key verification during package installation from this channel
  C. This channel will not be used by yum when it checks for updated packages
  D. This channel will not be used by yum when it searches for packages
  E. yum will not check if the channel metadata is up-to-date for this channel
  B. yum will not perform key verification during package installation from this channel

• Question 66:

  Consider the output shown:

  # rpm 璱 sendmail-cf-8.14.4-8.e16.noarch.rpm Error: Failed dependencies: Sendmail = 7.14.4-8.e16 is needed by sendmail-cf-8.e16.noarch # rpm 璱 sendmail-8.14.4-8.e16.x86_64.rpm # rpm 璱 sendmail-cf-8.14.4-8.e16.noarch.rpm # rpm -q sendmail sendmail-cf Sendmail-8.14.4-8.e16.x86_64 Sendmail-cf-8.e16_64 Sendmail-cf-8.14.4-8.e16.noarch # rpm 璭 sendmail

  Which statement is true about the execution of the rpm -e sendmail command?

  A. It erases the sendmail package without errors.
  B. It fails with an error because the package version is not supplied on the command line.
  C. It fails with an error because the sendmail-cf package depends on the sendmail package.
  D. It erases the sendmail package and raises an error because the sendmail package depends on the sendmail package.
  E. It erases both the sendmail and sendmail-cf packages because the sendmail-cf package depends on the sendmail package.
  E. It erases both the sendmail and sendmail-cf packages because the sendmail-cf package depends on the sendmail package.

• Question 67:

  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 68:

  You use the host command to find out about host name WAYOUT:

  

  Which two statements are true?

  A. Example.com is an authoritative name server.
  B. Dns1.example.com is an authoritative name server.
  C. Dns2.example.com is a Cache-only name server.
  D. Dns2.example.com is an authoritative name sever.
  E. Dns1.example.com is a cache-only name server.
  B. Dns1.example.com is an authoritative name server.
  D. Dns2.example.com is an authoritative name sever.

• Question 69:

  Which three statements are true concerning the use of the grub menu in Oracle Linux?

  A. All changes made using the grub editor at boot time are saved by default to /boot/grub/grub, conf.
  B. Additional parameters may be passed to the selected kernel.
  C. The initrd directive may not be changed.
  D. Existing kernel parameters may be changed.
  E. Some of the GRUB command-line functions may be password protected.
  A. All changes made using the grub editor at boot time are saved by default to /boot/grub/grub, conf.
  B. Additional parameters may be passed to the selected kernel.
  D. Existing kernel parameters may be changed.

  ---

  A: 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.

  Incorrect:

  not C: If you have set a GRUB password, you must press P and enter the valid password to be able to edit the titles or change kernel boot parameters. To edit any of the root, kernel, or initrd directives, press E. To edit the kernel directive

  only, press A. 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.

• Question 70:

  Which three statements are true concerning filesystems supported by Oracle Linux?

  A. An ext3 filesystem can be mounted as an ext2 filesystem.
  B. An ext4 filesystem can be mounted as an ext3 filesystem.
  C. The ext3 and ext4 filesystems both support multiple journaling modes.
  D. The btrfs filesystem includes a volume manager.
  E. The btrfs filesystem cannot be used for the root filesystem.
  F. The ext4 filesystem is a copy-on-write filesystem.
  A. An ext3 filesystem can be mounted as an ext2 filesystem.
  C. The ext3 and ext4 filesystems both support multiple journaling modes.
  E. The btrfs filesystem cannot be used for the root filesystem.

  ---

  A: ext2 file systems are upgradeable to ext3 without reformatting.

  C: The ext3 file system includes journaling capabilities to improve reliability and availability. In addition to the features of ext3, the ext4 file system supports extents (contiguous physical blocks), pre-allocation, delayed allocation, faster file system checking, more robust journaling, and other enhancements.

  Incorrect:

  Not F: btrfs, not ext4, is a copy-on-write file system,