1Z0-460 | A Review Of Breathing 1Z0-460 dumps
Q31. 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.
Q32. Which two statements describes the capabilities of Oracle Manager Ops Center product?
A. Oracle Enterprise Manager Ops Center can provide management services for Oracle Linux servers.
B. Oracle Enterprise Manager Ops Center provides management services only for Oracle Solaris operating system and SPARC servers.
C. Oracle Enterprise Manager Ops Center contains tools to debug Oracle Linux kernel dump files.
D. Oracle Enterprise Manager Ops Center includes built-in integration with My Oracle Support with automatic servers request generation.
Answer: A,D
Explanation: Oracle Enterprise Manager Ops Center 12c is a foundational offering in the Oracle Enterprise Manager 12c solution. It introduces unique capabilities to strengthen Oracle Enterprise Manager 12c’s ability to establish, manage, and support enterprise quality clouds delivered in an Infrastructure-as-a-Service model. With the launch of Oracle Enterprise Manager Ops Center 12c, Oracle Systems’ customers utilizing SPARC, X86, Oracle Solaris, Oracle Linux(A), Oracle ZFS Storage Appliance, Oracle Switches, and both Oracle VM technologies can accelerate private cloud adoption faster at a lower cost. Oracle Enterprise Manager Ops Center 12c provides a comprehensive solution for operating system, firmware and BIOS configuration, bare metal and virtual machine provisioning, hardware fault analysis, automatic My Oracle Support service request generation(D), performance management, all while leveraging integrated diagnostics with automatic server pool resource policies.
Q33. You have executed the following commands as the root user:
# find /home | cpio –o –H tar –F root@HostA: /dev/nst0 - - rsh –command = /usr/bin/ssh
What is the purpose of issuing this command?
A. To archive the contents of the /home directory in the tar format to a remote host system’s tape drive device /dev/nst0
B. To archive the contents of the /home directory in the cpio format to a remote host system’s tape device /dev/nst0
C. To archive the contents of the /home directory in the cpio and tar formats to a remote system’s tape drive device /dev/nst0
D. To extract the contents of the /home directory from the tape drive device /dev/nst0
Answer: A
Explanation:
Note:
*The cpio command is one of standard Unix backup utilities. It stands for "copy in/out." It is much less well known and more rarely used Unix utility in comparison with tar.
*The cpio command is one of standard Unix backup utilities. It stands for "copy in/out." It is much less well known and more rarely used Unix utility in comparison with tar.
* -H format. Here tar
Q34. View the cron job example below. How often will this cron job run?
0 */ 5 * * * command
A. every 5 minutes
B. every 5 hours
C. every 5 days
D. every 5th month
Answer: B
Explanation: Execute a cron job every 5 Hours
The second field is for hours. If you specify * in this field, it runs every hour. If you specify */5 in the 2nd field, it runs every 5 hours as shown below.
0 */5 * * * /home/ramesh/backup.sh
Q35. Your 32-bit i686 architecture system in registered with the Oracle Unbreakable Linux Network. RPM package example -1 .0.0-1 is already installed and the application is used constantly. You want to download the latest version of the example RPM package. You do not want to install the package until you have coordinated with the program’s current users. Which option will allow you to download until you have coordinated with the program’s current users. Which option will allow you to download the latest version of the RPM package, but not install it?
A. # rpm –Uvh http://linix.oracle.com/rpms/i686/example-1.0.1-1.i686.rpm
B. # yum –no-update example
C. # yumdownloader example
D. # yum –get example-1.0.1
Answer: C
Explanation: yumdownloader is a program for downloading RPMs from Yum repositories.
Synopsis
yumdownloader [options] package1 [package2...]
Note:
*yum - Yellowdog Updater Modified
yum is an interactive, rpm based, package manager. It can automatically perform system updates, including dependency analysis and obsolete processing based on "repository" metadata. It can also perform installation of new packages, removal of old packages and perform queries on the installed and/or available packages among many other commands/services (see below). yum is similar to other high level package managers like apt-get and smart.
Q36. As a system administrator, you run the system-config-network tool and make changes to the configuration. You change the hostname and the DNS search path settings. Which two files will these changes be written into?
A. “/etc/sysconfig/network” and “/etc/resolv.conf” files
B. “/etc/sysconfig/network” and “etc/nsswitch.conf/” files
C. “/etc/sysconfig/netconfig” and “/etc/resolv.conf” files
D. “etc/sysconfig/network-scripts/network” and “/etc/resolv.conf” files
Answer: C
Explanation: The system-config-network-tui and system-config-network commands start a text-based network configuration tool.
Navigate using the "tab", "arrow" and "return" keys. The "Device configuration" option gives a list of network devices.
Selecting the device allows you to edit the adapter's network configuration, which is saved to the "/etc/sysconfig/network-scripts/ifcfg-eth0" file.
The "DNS configuration" option on the first screen allows you to modify the configuration in the "/etc/sysconfig/network" and "/etc/resolv.conf" files.
Q37. View the output below.
As a root user, you run the two ulimit commands as shown in the output below. Why does the second ulimit command fail as shown in the output?
A. The ulimit command cannot be run from the bash shell.
B. The ulimit command syntax is not correct.
C. The soft limit value of file description cannot be set greater than the hard limit value.
D. The soft limit of file descriptions’ value should always be less than 1024.
Answer: C
Explanation: Any user can set a soft limit to any value less than or equal to the hard limit. Any user can lower a hard limit. Only a user with appropriate privileges can raise or remove a hard limit.
Note: *limit, ulimit, unlimit– set or get limitations on the system resources available to the current shell and its descendents
* Syntax:
ulimit [- [HS] [c | d | f | n | s | t | v]] limit
-H
Displays or sets a hard limit.
-S
Displays or sets a soft limit.
Reference: man ulimit
Q38. The crond daemon checks each command to see whether it should be run in the current ___________.
A. Second
B. Minute
C. Hour
D. Day
Answer: B
Explanation: The cron utility then wakes up every minute, examining all stored crontabs, checking each command to see if it should be run in the current minute.
Q39. On your Oracle Linux 6 system, you have to configure the eth0 network interface to 100 MB/sec, half duplex without trying to autonegotiate. Which command will help you configure this requirement?
A. # ifconfig eth0 speed 100 autoneg off duplex half
B. # ethtool interface eth0 speed 100 autoneg off duplex half
C. # ifconfig interface eth0 speed 100 autoneg off duplex half
D. # ethtool –seth0speed 100 autoneg off duplex half
Answer: D
Explanation: When I have a device that is acting up, I tend to run: ethtool ethX, check the Supported link modes, the Link partner advertised link modes and the actual speed and Duplex. If my Supported link mode is set low (say 10/Half for some reason) but my switch supports 1000baseT/Full then I'll use ethtool -s ethX to change my ethernet settings to 1000baseT/Full. Just about anything you see from: ethtool ethX, can be changed with ethtool -S ethX. In this case you would use the following:
ethtool -S eth0 speed 1000 duplex full autoneg on
Q40. As user bob, you have logged in to the system on a terminal and issued the following command to make the top command run in the background.
[bob@host - ] top& You exit from the terminal and log back as bob into the system at the same terminal. How is the background job affected?
A. The background job gets the foreground as soon as bob logs into the system.
B. The background job is suspended temporarily from the job and resumes when user bob logs back in to the system.
C. The background job starts running in the background again as soon as bob logs into the system.
D. The background job will not be affected.
E. The background job is deleted from the job pool and does not get listed using jobs command.
Answer: E