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Q11. Which two commands can be used on Oracle Linux to find the routing table and default gateway information of your network? 

A. netstat –r 

B. route show 

C. cat /proc/route 

D. route –n 

E. traceroute 

Answer: A,D 

Explanation: A:netstat - Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships 

D: 

*route - show / manipulate the IP routing table 

* route –n 

-n 

show numerical addresses instead of trying to determine symbolic host names. This is useful if 

you are trying to determine why the route to your nameserver has vanished. 

*The output of the kernel routing table is organized in the following 

columns 

Destination 

The destination network or destination host. 

Gateway 

The gateway address or ’*’ if none set. 

Genmask 

The netmask for the destination net; ’255.255.255.255’ for a 

host destination and ’0.0.0.0’ for the default route. 

Incorrect: 

Not B: use route –n. No subcommand show. 

Not E:traceroute - print the route packets trace to network host 


Q12. What does the following line in the modprobe.conf file indicate? 

options netconsole 

netconsole = 6666@192.168.1.200/eth0, 514@192.168.1.100/00:0C:A3:35:9C 

A. Netconsole logging is set up to send messages to a server at the IP address 192.168.1.200 by using the eth0 device. 

B. Netconsole logging is set up to send messages to a server at the IP address 192.168.1.200 by using the port number 6666. 

C. Netconsole logging is set up to send messages to a server at IP address 192.168.1.200 by using the UDP port 514. 

D. Netconsole logging is set up for two clients with IP addresses of 192.168.1.200 and 

192.168.1.100 on this server. 

Answer:

Explanation: Example: options netconsole netconsole=6666@10.0.0.1/eth0,514@10.0.0.2/00:1A:A0:D2:55:66 

Explanation 

6666=> Server source port 

10.0.0.1 => Server IP eth0 => Server NIC 514=> Client listening port 

10.0.0.2 => Client IP 00:1A:A0:D2:55:66 => Client MAC 


Q13. You have to collect data by using the OS Watcher tool to help diagnose a performance issue on your Oracle Linux system. You need to collect data every 30 seconds by using this tool and archive this data for a period of three days. Which is the OS Watcher tool option that can be used to collect this data from your system? 

A. # ./startOSWbb.sh –t 30 –p 3 

B. # ./startOSWbb.sh 30 72 

C. # ./startOSWbb.sh –int = 30 –days = 3 

D. # ./startOSWbb.sh 30 3 

Answer:

Explanation: Example: 

/startOSWbb.sh 60 24 

collect every 1 minute and keep 24 hours of archive files. 


Q14. What are the two benefits of configuring network interface bonding? 

A. aggregating two or more Network Interfaces (NICs) toactas one logical interface 

B. creating a static address that is bound to one NIC 

C. providing either failover or load-balancing to two or more Network Interfaces (NICs) 

D. binding a network interface to the embedded firewall (IPTables) for port filtering 

Answer: A,C 

Explanation: Network bonding refers to the combination of network interfaces on one host for redundancy and/or increased throughput. 


Q15. 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:

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 


Up to date 1Z0-460 exam topics:

Q16. You have to collect information about your Oracle Linux 6 system, such as hardware configuration, installed software packages, configuration, and operational state send it to Oracle Support. Which tool will help you gather this information for sending it to Oracle Support? 

A. sosreport 

B. iostat 

C. kdump 

D. strace 

E. systemstat 

Answer:

Explanation: sosreport - Generate debugging information for this system 

sosreport generates a compressed tarball of debugging information for the system it is run on that can be sent to technical support reps that will give them a more complete view of the overall system status. 

Incorrect: Not B:The iostat command is used for monitoring system input/output device loading by observing the time the devices are active in relation to their average transfer rates. The iostat command generates reports that can be used to change system configuration to better balance the input/output load between physical disks. 

Not C:kdump.conf is a configuration file for the kdump kernel crash collection service. 

kdump.conf provides post-kexec instructions to the kdump kernel. It is stored in the initrd file managed by the kdump service. If you change this file and do not want to restart before it takes effect, restart the kdump service to rebuild to initrd. 

Not D:strace - trace system calls and signals 


Q17. Which file system is both new and now installed by default in Oracle Linux 6 with Unbreakable Enterprise Kernel (UEK)? 

A. ext4 

B. ext3 

C. zfs 

D. ext2 

E. fat64 

Answer:

Explanation: Oracle Linux 6 includes many new features, including: 

ext4 filesystem 

The ext4 filesystem is installed by default. 


Q18. You have mounted an Oracle Linux 6 ISO image (v33411-01.iso) on your system in the /mnt/iso/OL6u3/Server directory. You want to use this image in your local yum repository configuration file and enable it. Which yum repository configuration file has the correct entries to use this image as a local repository? 

A. [ol6u3_base_media] name=Oracle Linux 6 Media baseurl=file:///mnt/iso/OL6u3/Server gpgcheck=1 enabled=0 

B. [ol6u3_base_media] name=Oracle Linux 6 Media baseurl=file:///mnt/iso/V33411-01.iso gpgcheck=1 enabled=1 

C. [ol6u3_base_media] name=Oracle Linux 6 Media baseurl=file:///mnt/iso/OL6u3/Server gpgcheck=1 enabled=1 

D. [ol6u3_base_media] name=Oracle Linux 6 Media baseurl=http:///mnt/iso/OL6u3/Server gpgcheck=1 enabled=1 

Answer:

Explanation: Example: Create a yum .repo file: 

cd /etc/yum.repos.d 

cat > ol63iso.repo << EOF 

[ol6_base_media] 

name=Oracle Linux 6 Media 

baseurl=file:///mnt/iso/ol63/Server 

gpgcheck=0 

enabled=1 

EOF 

Incorrect: 

Not B: Specifiy the directory, not the iso file name. 

Not C: Enabled should be 0, not 1. 

Not D: Use file: not http: to specify the directory 


Q19. Which two conditions will cause OCFS2 to evict a node? 

A. When a node no longer responds to network heartbeat signals from other members of the cluster 

B. When storage array is at 90% capacity 

C. When access to storage is lost 

D. When a node is running at 90% utilization 

Answer: A,C 

Explanation: A:How does the disk heartbeat work? Every node writes every two secs to its block in the heartbeat system file. The block offset is equal to its global node number. So node 0 writes to the first block, node 1 to the second, etc. All the nodes also read the heartbeat sysfile every two secs. As long as the timestamp is changing, that node is deemed alive. 


Q20. Which three statements are true about the Kickstart installation method? 

A. The Kickstart installation method helps to speedboottime after the system restarts. 

B. A Kickstart file is created for every installation. 

C. The Kickstart Configurator can be used to create or make changes to a kickstart file. 

D. The Kickstart method allows for unattended and more standardized installations. 

E. The Kickstart method of configuration is performed after the installation of the host operating system. 

Answer: B,C,D 

Explanation: BC: 

*A kickstart installation requires a kickstart file that contains the answers to every question asked 

during an interactive installation. Kickstart files can be created in one of three ways: 

/Perform an interactive installation. Once complete you will find the Kickstart configuration file for 

the installation you just completed in the "/root/anaconda-ks.cfg" file. This can be amended and 

used for subsequent installations.(B) 

/Create a Kickstart file in a text editor manually, or based on a copy of a previous file. 

/Use the Kickstart Configurator.(C) 

D: *Kickstart installations provide an automated alternative to the normal interactive installations of RHEL and Oracle Linux. The automation of installation and post installation configuration steps represents a considerable time saving in situations where many similar installations are performed. 

Reference:Kickstart - Automated Installations of RHEL and Oracle Linux