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NO.1 You found a message on a public discussion forum mentioning a Vulnerability (for example,
CVE2006-5794), which could affect some versions of OpenSSH in Linux distribution. Identify the
command that would allow you to see whether this CVE has been applied.
A. rpm -q - - changelogopenssh| grep 5794
B. yum listcvew openssh
C. rpm -qa | grep openssh | grep 5794
D. yum sec-list cves
Answer: A
Explanation:
*The command rpm -q --changelog rpm displays a detailed list of information
(updates, configuration, modifications, etc.) about a specific package. This example shows
information about the package rpm. However, only the last five change entries in the RPM
database arelisted. All entries (dating back the last two years) are included in the package itself.
This query only works if CD 1 is mounted at /media/cdrom:
rpm -qp --changelog /media/cdrom/suse/i586 /rpm-3*.rpm
*Is the patch RPM suitable for my system?
To check this, first query the installed version of the package. For pine, this can be done with
rpm -q pine
pine-4.44-188
Incorrect:
not C:
*qa stands for "Query All"
Assuming you are attempting to find out if you have the Very Secure FTP Daemon installed, you
want:
rpm -qa | grep vsftp
rpm -qa will show you all installed RPMs, piping it through grep will limit the list to RPMs
containing the string "vsftp".

NO.2 You have to mount the Oracle Linux ISO image file OracleLinux -R6 - U2 - Server -
X86_64dvd.iso to the /media/cdrom mount point. Which command will help you mount the Oracle
Linux ISO image file?
A. # mount OracleLinux -R6 -U2 -Server X86_64-dvd.iso /media/cdrom
B. # mount -t DVD OracleLinux -R6 -U2-Server-X86_64-DVD.iso/media/cdrom
C. # mount /dvd/OracleLinux -R6 -U2- Server=X86_64-dvd.iso
/media/cdrom/OracleLinux-R6-UI-Server-X86_64-dvd.iso
D. # mount - 0 ro, loop oracleLinux -R6 -U2 -Server -X86_64 -dvd.iso /media/cdrom
Answer: D
Explanation:
Mount the DVD iso of the desired update of Oracle Linux Release 5. Use the following command for
mounting the DVD media inserted in /dev/cdrom
# mount -r -o loop -t iso9660 /dev/cdrom /mnt
Use following command to mount iso image file
# mount -o loop <iso image file name> /mnt

NO.3 The change that are made by using echo command, like the one shown in the example below,
are not persistent and disappear when the system us restarted. Which file should be modified to
make configuration changes across reboots?
# echo www.example.com > /proc/sys/kernel/hostname
A. /etc/sys/sysct1.conf
B. /etc/sysconfig.conf
C. /etc/sysct1.conf
D. /proc/sysct1.conf
Answer: A
Explanation:
A configuration file exists for the purpose of persisting changes,
named/etc/sysct1.conf. When booting, your server starts the procps service that reads this
configuration file and applies all settings in it.
Note:
*If you've ever needed to change the hostname for Red Hat Linux, CentOS or similar operating
systems, you can do so easily with one simple command.
Just use the echo command to replace the contents of /proc/sys/kernel/hostname with your new
host name.
# echo hostname.com > /proc/sys/kernel/hostname
Then restart the network interfaces:
# /etc/init.d/network restart
Shutting down interface venet0: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface venet0: RTNETLINK answers: File exists
RTNETLINK answers: File exists
[ OK ]
Now you can use the hostname command to verify that it has changed.

NO.4 Which three statements describe the Unbreakable Enterprise Kernel (UEK)?
A. The UEK contains proprietary Linux Kernel enhancements only available to Oracle Linux.
B. The UEK is available for x86 (32 bit), x86-64 (64 bit), ARM 32 bit, and ARM 64 bit servers.
C. Existing applications run unchanged with the UEK in place because all system libraries remain
unchanged.
D. The UEK has more recent kernel enhancements for features like power management than the
Red Hat Compatible Kernel.
E. The UEK has ASMlib included by default.
Answer: A,C,E
Explanation:
A:The Unbreakable Enterprise Kernel Release 2 is Oracle's second major release of its heavily tested
and optimized operating system kernel for Oracle Linux 5 and Oracle Linux 6.
C: Oracle claims that the Unbreakable Enterprise Kernel is compatible with RHEL, and Oracle
middleware and third-party RHEL-certified applications can be installed and run unchanged on
Unbreakable Enterprise Kernel. E:Oracle ASMlibisincluded by default
Incorrect:
Not B:Unbreakable Enterprise Kernel is available for x86-64 servers.

NO.5 Identify three valid modes for SELinux.
A. Disabled
B. Enforcing
C. Running
D. Permissive
E. Enabled
F. High_level
G. Label_only
Answer: A,B,D
Explanation:
SELinux has three modes:
Enforcing: SELinux policy is enforced. SELinux denies access based on SELinux policy rules.
Permissive: SELinux policy is not enforced. SELinux does not deny access, but denials are logged
for actions that would have been denied if running in enforcing mode.
Disabled: SELinux is disabled. Only DAC rules are used.

NO.6 What types of packages are contained in the Oracle Public YUM server?
A. Base releases of Oracle and RedHat Linux distributions
B. Base releases of Oracle Linux and extra/updates for Oracle Linux
C. Red Hat Compatible Kernel, UEK, and Oracle database software
D. Base release of Oracle Linux
Answer: D
Explanation:
The Oracle public yum server offers a free and convenient way to install the latest
Oracle Linux packages as well as packages from the Oracle VM installation media via a yum
client.
You can download the full Oracle Linux and Oracle VM installation media via
edelivery.oracle.com/linux.
Note:
Getting Started
Oracle Linux 4, Update 6 or Newer
# cd /etc/yum.repos.d
# mv Oracle-Base.repo Oracle-Base.repo.disabled
# wget http://public-yum.oracle.com/public-yum-el4.repo
Oracle Linux 5
# cd /etc/yum.repos.d
# wget http://public-yum.oracle.com/public-yum-el5.repo
Oracle Linux 6
# cd /etc/yum.repos.d
# wget http://public-yum.oracle.com/public-yum-ol6.repo
Oracle VM 2
# cd /etc/yum.repos.d
# wget http://public-yum.oracle.com/public-yum-ovm2.repo
Open the yum configuration file in a text editor
Locate the section in the file for the repository you plan to update from, e.g. [el4_u6_base]
Change enabled=0 to enabled=1 yum list yum install firefox You may be prompted to confirm the
import of the Oracle OSS Group GPG key.

NO.7 Which two statements describe the capabilities used with the Unbreakable Enterprise Kernel?
A. Existing Red Hat Enterprise Linux 5 and 6 customers need to reinstall Oracle Linux to use the
Unbreakable Enterprise Kernel.
B. The Unbreakable Enterprise kernel is the default kernel starting with Oracle Linux 5.6.
C. The Unbreakable Enterprise kernel is required when using multithreaded CPUs.
D. Oracle Clusterware, OCFS2, and the Enterprise Manager pack for Linux support are included with
Oracle Linux Basic and Premier support.
E. Switching between the Red Hat Compatible kernel and the Unbreakable Enterprise kernel is
simple process of changing kernels and glibc.
Answer: D,E
Explanation:
*Commercial technical support is available through Oracle's Oracle Linux Support
program, which supports Oracle Linux, and existing RHEL or CentOS installations(i.e. without
reinstallation).
Note:
*The Unbreakable Enterprise Kernel Release 2 is Oracle's second major release of its heavily
tested and optimized operating system kernel for Oracle Linux 5 and Oracle Linux 6.
Unbreakable Enterprise Kernel Release 2 is based on the mainline Linux kernel version 3.0.16
and boasts a wide range of new features and improvements relevant for enterprise workloads.
Incorrect:
Not A, not B:Unbreakable Enterprise Kernel Release 2 can be installed on Oracle Linux 5 Update
8 or newer, as well as on Oracle Linux 6 Update 2 or newer.

NO.8 Identify the option with two files that are found in the /etc/sysconfig directory.
A. /etc/sysconfig/autofs and/etc/sysconfig/authconfig
B. /etc/sysconfig/ifcfg-eth0 and/etc/sysconfig/atd
C. /etc/sysconfig/resolv.conf and/etc/sysconfig/network
D. /etc/sysconfig/resolv.conf and/etc/sysconfig/grub.conf
Answer: A
Explanation:
*The /etc/sysconfig/autofs file defines custom options for the automatic mounting of devices.
*The /etc/sysconfig/authconfig file sets the kind of authorization to be used on the host.
Note:*/etc/sysconfig/network
Used to configure networking options.
Incorrect: Not C, Not D:
* The program that resolves hostnames to IP addresses reads a file calledresolv.conf. This file is
located in /etc/resolv.confdirectory.