Oracle Oracle Certifications 1Z0-100 Questions & Answers

• Question 91:

  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.

  Correct Answer: ABE

  * 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 92:

  Which three options are available during the Anaconda installer disk partitioning setup stage for a machine with only one hard disk device?

  A. Manual resizing of existing partitions on only a single device

  B. Removal of all empty partitions only, leaving any Linux or non-Linux partitions unchanged

  C. Replacing of existing Linux partitions only and leaving any other partitions unchanged

  D. Replacing of existing non-Linux partitions only, and leaving any Linux partitions unchanged

  E. Manual resizing of existing partitions on all selected devices

  F. Removal of all existing partitions and creating new partitions to suit the install

  Correct Answer: ACF

  A: Shrink Current System

  Select this option to resize your current data and partitions manually and install a default Red Hat

  Enterprise Linux layout in the space that is freed.

  C: Replace Existing Linux System(s)

  Select this option to remove only partitions created by a previous Linux installation. This does not remove

  other partitions you may have on your hard drives (such as VFAT or FAT32 partitions).

  F: Replace Existing Linux System(s)

  Select this option to remove only partitions created by a previous Linux installation. This does not remove

  other partitions you may have on your hard drives (such as VFAT or FAT32 partitions).

  Note:

  

• Question 93:

  Which two statements are true about the Unbreakable Linux Network (ULN)?

  A. It is freely available to all Oracle Linux customers.

  B. It contains additional packages not found on the installation media.

  C. It contains only binary RPM packages.

  D. It contains both source and binary RPM packages.

  E. It is the only location to download errata.

  F. All Unbreakable Linux subscribers are allowed to deploy a local YUM repository.

  Correct Answer: BD

  B: ULN subscribers will find security updates and additional bugfixes for kernel and other packages. They will also be able to download useful extra packages not included in the original distribution.

  D: You can also select to download the source RPM in addition to the binary RPMs.

  Incorrect:

  not A: How do I obtain a login for Unbreakable Linux Network (ULN)? You may register for a ULN account

  via linux.oracle.com/register You will need the following:

  An Oracle.com Single Sign on account. If you don't have one already, the link above will guide you through

  the steps to create one

  A valid Oracle Linux support or Oracle VM support CSI (customer support identifier). You may purchase

  Oracle Linux or Oracle VM support online via the Oracle Linux Store or via your sales representative.

• Question 94:

  Examine the content of the mdstat pseudo file:

  # cat /proc/msstat

  personalities: [raid1] [raid0] [raid6] [raid5] [raid4] md0 : active raid1 md2[1] md1[0] 207680 blocks super 1.2 [2/2] [UU] md2 : active raid0 sdg[1] sdf1[0] 207872 blocks super 1.2 512k chinks Md1 : active raid0 sde1[1] sdd1[0] 207872 blocks super 1.2 512k chunks Unused devices:

  Which two statements are true about the MD0 RAID set?

  A. MDO is a stripped mirror RAID set.

  B. MDO is a mirrored stripped RAID set.

  C. If MD1 fails, so will MDO.

  D. If MD2 fails, MDO too fails.

  E. If /dev/sdd1 and /dev/sdg1 fail, MDO fails.

  Correct Answer: AD

  Explanation: MD0 is active and raid1. Md2 and md1 is spare. So it is a stripped mirror RAID set. Since both depends on MD0, if MD2 fails, MD0 will fail too. Reference: http://linuxwiki.de/proc/mdstat

• Question 95:

  Examine these commands used to control UPSTART logging:

  [root@FAROUT init] # initctl log-priority info [root@FAROUT init] # initctl log-priority

  Info

  [root@FAROUT init]#

  Which three statements are true about the logging done through these commands?

  A. UPSTART logs State Changes to /vat/log/messages.

  B. UPSTART logs job goals to /var/log/massages.

  C. UPSTART logs only informational messages about warnings and errors to /var/log/messages.

  D. UPSTART logs only informational messages about warnings to /var/log/messages.

  E. UPSTART logs event emissions to /var/log/messages.

  Correct Answer: AC

• Question 96:

  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.

  Correct Answer: BD

• Question 97:

  Which three statements are true about the configuration of OpenLdap secure encrypted connections?

  A. TLS and ldaps should not both be selected.

  B. To enable idaps, you must download the Certifying Authority (CA) Certificate.

  C. To enable TLS, you must download the Certifying Authority (CA) Certificate.

  D. The certificate is needed to verify ownership of the secret key used for encryption.

  E. There is a command-line alternative to the Authentication Configuration Tool to enable the encrypted LDAP communication.

  Correct Answer: ACD

  Transport Layer Security (TLS) can be used to provide data integrity and confidentiality protection. OpenLDAP supports negotiation of TLS (SSL) via both StartTLS and ldaps://.

• Question 98:

  Which two actions should be completed when the firstboot utility runs under runlevel 5 in Oracle Linux?

  A. Agreeing to the license agreement

  B. Registering for software updated

  C. Creating a nonadministrative user

  D. setting the current date and time to be synchronized with an NTP server

  E. Configuring the dtrace facility

  Correct Answer: AD

  Performing FirstBoot Configuration Tasks

  FirstBoot runs only after an initial installation and guides you through the various remaining configuration tasks.

  1.

  Click Forward to display the License Information window.

  2.

  Select Yes, I agree to the license agreement, and click Forward to display the Set Up Software Updates window.

  3.

  If your system has an active network connection, you can register your system with the Unbreakable Linux Network (ULN) and subscribe the system to software and Ksplice updates.

  Click Forward to display the Create User window.

  4.

  Create a non-administrative user account. If you have an existing IPA, LDAP, Kerberos, NIS, or Winbind user database, click Use Network Login to configure the system to obtain user account information from the network server. Click Advanced if you want to specify the user's home directory or user ID.

  Click Forward to display the Date and Time window.

  5.

  Set the current date and time. You can choose to synchronize the system's date and time from an NTP server.

  Click Forward to display the Kdump window.

  6.

  If required, enable the Kdump kernel crash dump mechanism and configure the amount of memory to reserve for it. If your system crashes, Kdump captures information that assists in determining the cause of the crash.

  Click Finish to complete FirstBoot configuration and display the graphical login screen

• Question 99:

  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.

  Correct Answer: CDE

  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 100:

  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.

  Correct Answer: BCE

  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.