Exam Details
Exam Title: Oracle Linux 6 Implementation Essentials
Exam Number: 1Z0-460
Exam Price: $245.00 More on exam pricing
Format: Multiple Choice
Duration: 120 minutes
Number of Questions: 71
Passing Score: 62%
Validated Against: This exam has been validated against Oracle Linux 6.
Introduction to Oracle Linux
Descirbe the Oracle Linux Product
Describe the relationship between Oracle Linux and Red Hat Enterprise Linux (RHEL)
Describe Oracle Linux strategy and Oracle’s commitment to Linux
Describe Oracle’s Unbreakable Enterprise Kernel
Describe the key differences between Unbreakable Enterprise Kernel and Red Hat Compatible Kernel
Linux Boot Process
Describe the Linux boot process
Configure the GRand Unified Bootloader (GRUB) bootloader
Configure kernel boot parameters
Boot different kernels (Red Hat Compatible Kernel and Unbreakable Enterprise Kernel)
Describe the /sbin/init program, Linux runlevels and runlevel scripts
Examine the /etc/rc.d directory
Oracle Linux Package Management
Describe Oracle Linux package management
Use the RPM utility
Describe the Oracle Public YUM Server
Describe and configure YUM repositories
Use the YUM utility
Describe the Unbreakable Linux Network (ULN)
Switch from Red Hat Network (RHN) to ULN
Install the Oracle RDBMS Server 11gR2 Pre-install RPM package for Oracle Linux 6
Set up a local YUM repository
Automate tasks and System Logging
Describe available automated tasks utilities
Configure cron jobs and use crontab utility
Configure anacron jobs
Observe contents of rsyslog configuration file
Describe rsyslog actions and templates
Configure rsyslog to log debug messages
Oracle Linux File Systems and Storage Administration
Describe disk partitioning and disk partitioning utilities
Describe supported file system types (ext2, ext3, ext4, Vfat, btrfs,ocfs2,nfs)
Perform file system creation, mounting and maintenance
Manage swap space
Use archiving and compression tools like tar, cpio, zip and gzip
Describe ASMLib package
Describe Clusterware add-on package
Basic Security Administration
Describe SELinux modes, policies, booleans, and contexts
Enable and disable SELinux configuration
Manage access to system services using Service configuration tool
Use the Firewall configuration tool
Configure iptables rules
Verify Common Vulnerabilities and Exposures (CVE) security updates are up to date
Installing Oracle Linux 6
Describe how to obtain Oracle Linux Operating System software
Describe Oracle Linux Install options
Describe automating installs with kickstart
Perform an installation of Oracle Linux 6
Perform post installation steps and verification
Describe all key Oracle Linux related sites like edelivery, ULN, oss, public-yum etc.
Oracle Linux System Configuration and Process Management
Describe the /etc/sysconfig directory
Examine the /proc file system
Describe the sysfs file system
Use the sysctl utility
Display and change the current values of kernel parameters using sysctl
Use the ulimit command and the set parameters
Find and control running programs with ps, top, kill, and nice
Use the jobs, fg and bg commands to view and access several tasks
Ksplice Zero Downtime Updates
Describe the purpose of Ksplice
Describe the benefits of Ksplice
Describe how Ksplice works
Configure and use Ksplice
Manage Ksplice systems
User and Group Administration
Create users and groups
Create users and groups using command-line utilities
Use the id command to verify user information and manually review passwd and group files
Configure password aging
Use the User Manager GUI tool
Describe LDAP and NIS authentication options
Perform basic Pluggable Authentication Modules (PAM) configuration and configure LDAP authentication
Network Administration
Describe network interface configuration files
Use command line network interface utilities
Use the NetworkManager tool to configure network connections
Use the system-config-network utility
Examine files in /etc/sysconfig/network-scripts
Set up bonding
Set up a VLAN and a bonded VLAN
Configure Iptables and routing
Oracle Linux System Monitoring and Troubleshooting
Use OSWatcher tool and configure to start at boot time
Use sosreport
Use sar, strace, iostat, tcpdump and ethereal tools
Use vmstat and top
Describe DTrace tool
Set up kdump / netconsole
Verify proper creation of vmcore by kdump using crash
Describe OS management capabilities of both Opscenter and EM management for Oracle Linux
QUESTION 1
Finding a directive issued by your organization listing several important CVEs (Common
Vulnerability and Exposures), you find one for Linux OpenSSH (CVE-2006-5764), which might
apply to your oracle Linux systems. What command would help ensure that a patch has been
applied to close this vulnerability on an Oracle Linux 6 system running OpenSSH server?
A. yum listcves openssh
B. rpm –qa | grep openssh | grep 5794
C. rpm –q – – changelog openssh | grep 5794
D. yum sec – list cves | grep 5794
E. yum sec – list cvesApplied
Answer: C
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 are listed. 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
QUESTION 2
Which three parameters of a network interface can you modify by using the NetworkManager tool
on your Oracle Linux 6 system?
A. IPv4 settings
B. IPv6 settings
C. Netconsole settings
D. MTU settings
E. IP Proxy settings
Answer: A,B,D
Explanation:
Note:
1:Right-click the NetworkManager icon in the notification area at the top-right corner of the Red Hat
desktop and click “Edit Connections.”
2:Click the “System eth0” connection on the wired tab and click “Edit.”
3:Click the “IPv4 Settings” tab.
QUESTION 3
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.
QUESTION 4
View the exhibits.
Examine the output of sar command and the top command in the Exhibits. Which statement is the
correct interpretation of this data?
A. The system is running low on swap space and memory.
B. CPU is Idle and the system has plenty of free memory available.
C. The CPU utilization is high and one process is using most of the CPU.
D. The system is idle with very little memory, CPU, and I/O utilization.
Answer: C
Explanation: From the top exhibit we see that npviewer.gin uses 73.4% of the available CPU.
Note:
*sar – Collect, report, or save system activity information.
*The sar command writes to standard output the contents of selected cumulative activity counters
in the operating system. The accounting system, based on the values in the count and interval
parameters, writes information the specified number of times spaced at the specified intervals in
seconds.
*sar –u 2 5
Report CPU utilization for each 2 seconds. 5 lines are displayed.
QUESTION 5
Which three steps are involved in the installing Ksplice on servers that will be updated?
A. You have to be logged as user “ksplice” on the server you want to prepare and install Oracle
Ksplice on.
B. The Uptrack package needs access directly or through a proxy to the Oracle public yum
repository (https://public-yum.oracle.com/) to download the required packages for the uptrack-*
utilities to be able to work correctly.
C. Download the install-uptrack script using the “wget –N https://www.ksplice.com/uptrack/installuptrack”
command.
D. You have to be logged in as user “root” on the server you want to prepare and install Oracle
ksplice on.
E. The uptrack package will set up a yum repository (/etc/yum.repos.d/ksplice-uptrack.repo) and
download the required package for the uptrack-* utilities to be able to work correctly.
F. Download the ksplice ISO image from https://edelivery.oracle.com/linux and then run the “sh
install-uptrack” script from the ISO image.
Answer: B,C,D
Explanation: B:Your system must have access to the internet to install Ksplice. If you are using a
proxy, set the proxy in your shell:
export http_proxy=https://proxy.company.com:port
export https_proxy=https://proxy.company.com:port
CD:Once you have an access key run the following commands as root, replacing
YOUR_ACCESS_KEY with the access key you received upon sign-up:
wget -N https://www.ksplice.com/uptrack/install-uptrack
sh install-uptrack YOUR_ACCESS_KEY
uptrack-upgrade–y
E:If you’d like Ksplice Uptrack to automatically install updates as they become available, run:
sh install-uptrack YOUR_ACCESS_KEY –autoinstall
in place of the above install-uptrack command, or set “autoinstall = yes” in your
/etc/uptrack/uptrack.conf after installation.
Reference: Ksplice,Installation instructions
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