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Update 1Z0-460 Dumps with VCE and PDF for Free (Question 21 – Question 25)

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QUESTION 21
A system administrator wants to enable packet without making the changes permanent. What command would he use to complete this action?

A.    Echo 1> /proc/sys/net/ip_forward/
B.    Echo 1> /proc/sys/net/ipv4/ip_forward
C.    Echo 1 > /etc/sysconfig/sys/net/ipv4/ip_forward
D.    Echo 0 > /proc/sys/net/ipv4/ip_forward

Answer: B
Explanation:
The ‘1’ in “/proc/sys/net/ipv4/ip_forward” enables IP forwarding. And, the ‘0’ signifies IP forwarding is disabled.

QUESTION 22
You have to aggregate two network interfaces, eth0 and eth1, into a single logical interface such as bond0. Which option shows the four configuration files that need to be configured to set up this bonding?

A.    /etc/sysconfig/network-scripts/ifcfg-bond0
/etc/sysconfig/network-scripts/ifcfg-eth0
/etc/sysconfig/network-scripts/idfg-eth1
/proc/bonding.conf
B.    /etc/sysconfig/network-scripts/ifcfg-bond0
/etc/sysconfig/network-scripts/ifcfg-eth0
/etc/sysconfig/network-scripts/idfg-eth1
/etc/modeprobe.d/bonding.cfg
C.    /etc/sysconfig/network/ifcfg-bond0
/etc/sysconfig/network-scripts/ifcfg-eth0
/etc/sysconfig/network-scripts/ifcfg-eth1
/etc/modprobe.d/bonding.conf
D.    /etc/sysconfig/network-scripts/ifcfg-bond0
/etc/sysconfig/network-scripts/eth0
/etc/sysconfig/network-scripts/eth1
/etc/bonding.conf

Answer: C
Explanation:
– Step 1: Create a bond0 configuration file. Red Hat Enterprise Linux (and its clone such as CentOS) stores network configuration in /etc/sysconfig/network-scripts/ directory. First, you need to create a bond0 config file as follows: # vi /etc/sysconfig/network-scripts/ifcfg-bond0.
– Step 2: Modify eth0 and eth1 config files. Open both configuration using a text editor such as vi/vim, and make sure file read as follows for eth0 interface: # vi /etc/sysconfig/network-scripts/ifcfg-eth0.
– Step 3: Load bond driver/module. Make sure bonding module is loaded when the channel-bonding interface (bond0) is brought up. You need to modify kernel modules configuration file. For each configured channel bonding interface, there must be a corresponding entry in your new /etc/modprobe.d/bonding.conf file.

QUESTION 23
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: AD
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, 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, performance management, all while leveraging integrated diagnostics with automatic server pool resource policies.
http://www.oracle.com/technetwork/oem/ops-center/index.html

QUESTION 24
A system administrator wants to view all running processes on the system in real time, to find out what RAM has been allocating to each process. What system command should be used?

A.    ps -ef
B.    ps ax
C.    top
D.    meminfo

Answer: C
Explanation:
top – display Linux tasks. The top program provides a dynamic real-time view of a running system. It can display system summary information as well as a list of tasks currently being managed by the Linux kernel. The types of system summary information shown and the types, order and size of information displayed for tasks are all user configurable and that configuration can be made persistent across restarts.
Incorrect:
Not A, Not B: ps displays information about a selection of the active processes. To see every process on the system using standard syntax:
ps -e
ps -ef
ps -eF
ps -ely
To see every process on the system using BSD syntax:
ps ax
ps axu
Not D: meminfo – provide information about memory. The “meminfo” function provides information about virtual and physical memory particular to the calling process. The user or developer of performance utilities can use this information to analyze system memory allocations and develop a better understanding of the factors affecting application performance.

QUESTION 25
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: AC
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.
https://library.netapp.com/ecmdocs/ECMP1654943/html/GUID-253E59E7-4E2C-4E8C-9175-020217AD2098.html


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