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Oracle VM 3 for x86 Essentials Question and Answers

Oracle VM 3 for x86 Essentials

Last Update May 5, 2024
Total Questions : 141

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Questions 1

What will happen if OVM server pool master server crashes?

Options:

A.  

All servers in server pool will hang until the master server have been brought back up.

B.  

All servers in server poolwill continue to run but no configuration changes can be made until the master server back online.

C.  

A server in the server pool that was assigned the secondary master server will take over its place.

D.  

A server in the server pool will automaticallytake over in its place.

E.  

A new master server will be assigned through OVM Manager.

Discussion 0
Questions 2

In your Oracle VM environment, you have been troubleshooting intermittent crashes of an Oracle VM server. Oracle support has determined that the crashes are caused by the network latency and the servers are timing out and rebooting after trying to access the server pool file system. Oracle has recommended that you increase the heartbeat dead threshold from the default of 31 to a value 61. Which file store this configuration parameter?

Options:

A.  

/etc/myOCFS2.conf.

B.  

/etc/myOVS/o2cb.

C.  

/etc/sysconfig/esxcluster.conf.

D.  

/etc/OCFS2/manager.config.

E.  

/etc/sysconfig/o2cb.

Discussion 0
Questions 3

You added a new Oracle VM server to your production server pool recently. Now you are trying to do live migration of server guest to this new server but it does not appear in the list of available Oracle VM servers. What three reasons could explain this?

Options:

A.  

The guest does not have the high availability flag enabled.

B.  

The new server is in maintenance mode and cannot run any guest in this state.

C.  

The guest has been aligned an amount of memory greater than the new server physical memory.

D.  

The new server has not been presented to a storage repository containing the guest to be migrated.

E.  

The new server does not have IPMP configuration yet.

Discussion 0
Questions 4

In a paravirtualized environment, which answer best describes the drivers that are used in domO and the guest to communicate network I/O requests?

Options:

A.  

A netback driveris used in dom0, and a netfront driver is used in the guest.

B.  

A native device driver is used in dom0, and a netback driver is used in the guest.

C.  

A netfront driver is used in dom0, and a native device driver is used in the guest.

D.  

A netfront driveris used in dom0, and a blkbck driver is used in the guest.

E.  

Native drivers are used in both dom0 and the guest.

Discussion 0
Questions 5

Customers looking for pre-tested, validated architectures, with documented best practices for software, hardware, storage, and network components should consider which Oracle offering?

Options:

A.  

Oracle AIA (Application Integration Architecture)

B.  

Oracle Validated Configuration

C.  

Oracle Support

D.  

Oracle ACS (Advanced Customer Services)

E.  

Oracle MetaLink

Discussion 0
Questions 6

On one of your Oracle VM server you are experiencing communication issue with all over the VMs on the same subnet. As part of troubleshooting this issue, what command you will use in dom0 of the Oracle VM server to identify only the network bridges currently configured?

Options:

A.  

esx –a

B.  

ifconfig –a –d bridges

C.  

netstat list

D.  

xen bridge display

E.  

prctl show

Discussion 0
Questions 7

As you are grouping workloads into server pools, you decide you want to use network traffic as one of your criteria. Which answer describes how Network QoS (Quality of Service) might apply?

Options:

A.  

throttles (restricts) the inbound and outboundnetwork traffic for a virtual machine vif

B.  

throttles (restricts) the inbound and outbound network traffic for a physical network interface

C.  

throttles (unrestricts) the inbound and outbound network traffic for a virtual machine vif

D.  

throttles (unrestricts) the inbound and outbound network traffic for a physical network interface

E.  

is not yet available with Oracle VM 2.2 but will be added in a subsequent release

Discussion 0
Questions 8

You have configured two virtual machines to use 4 shared iSCSI disks. The first VM was configured correctly but when adding the iSCSI disks to the 2nd VM you don’t see any available disk in the list. Identify two steps that might correct this.

Options:

A.  

Verify that each of the iSCSI disk have high availability enabled on each of the OVM Server.

B.  

Ensure thatyou have multipath to each of the iSCSI disk on the Oracle VM server where the second virtual machine exist.

C.  

Verify that LUNs size met the minimum requirement for your application.

D.  

Re-scan the physical disk on Oracle server where the 2ndVM isrunning.

E.  

Verify that iSCSI disks have been marked as shareable from OVM Manager.

Discussion 0
Questions 9

Which three of the given virtualized technologies are type 1 bare metal hypervisor based?

Options:

A.  

Oracle VM

B.  

Oracle VM virtual box

C.  

VMware player

D.  

Xen

E.  

Solaris Zone

F.  

VMware ESXI

Discussion 0
Questions 10

Which three statements are true about the server pool file system and creating a cluster server pool?

Options:

A.  

It is ZFS formatted partition or container.

B.  

It is OCFS2 formatted partition or container.

C.  

It must be a local disk partition.

D.  

It store cluster information.

E.  

It is used for global disk heartbeat.

Discussion 0
Questions 11

In which Oracle VM environment would you choose to increase the priority and processor cap % on one or more VMs?

Options:

A.  

Wherethere are four Oracle VM servers and each dedicated to specific set of VMs and you wish to increase the efficiency of all servers.

B.  

Where there are two Oracle VM servers sharing multiple VMs and workload and you wish to ensure that the VM running database server have higher CPU priority.

C.  

Where there are multiple Oracle VM servers with few physical network connections and you wish to ensure some VM will see high bandwidth.

D.  

Where there are four Oracle VM servers sharing multiple VMs and workload and you wish to conserve power consumption.

E.  

Where there are multiple Oracle VM servers with a single server pool and you wish you to total the disk I/O to prevent cluster heartbeat problem.

Discussion 0
Questions 12

The Oracle VM administrator is having issues shutting down a virtual machine. Which log file will best help troubleshoot whether the shutdown command is being successfully executed on the target server?

Options:

A.  

/var/log/ovs-agent/ovs_performance.log

B.  

/var/log/ovs-agent/ovs_operation.log

C.  

/var/log/xen/xend.log

D.  

/var/log/xen/xend-debug.log

Discussion 0
Questions 13

You have just finished successfully upgrading an Oracle VM sever from VM manager GUI. When attempting to migrate some of your VMs back to upgraded server it does not appear in the list of available server. What is the most likely reason?

Options:

A.  

There is another update available and it should be applied before you can migrate your VMs.

B.  

All the Oracle VM server in the environment should be upgraded before the VMs can migrated to the upgraded server.

C.  

The server should be taken out of maintenance mode before you canmigrate any VM back to it.

D.  

The server should be move backed to the same server pool as it was prior to the upgrade.

E.  

You should update all VMs to re-authorize the upgraded server so that it has permission to run the VMs.

Discussion 0
Questions 14

What happens to a virtual machine running on a clustered Oracle VM server when the server crasher?

Options:

A.  

It is restarted on another server in the server pool if it has the highavailability flag enabled.

B.  

It remains down until the administrator restarted it on another server in the server pool if high availability flag in enabled.

C.  

It is live migrated to another server in the server pool regardless of high availability flag setting.

D.  

It is live migrated to another server in the server pool only if the high availability flag is enable.

E.  

It is restarted on another server in the server pool regardless of high availability flag setting.

Discussion 0
Questions 15

What two steps are required to ensure that virtual machines failover to a new server when their current server goes down?

Options:

A.  

Ensure that the Oracle VM Manager is always available by installing Oracle Clusterware.

B.  

Turn on High Availability Mode in the server pool.

C.  

Assign a virtual IP address to the server pool.

D.  

Turn on HA in all virtual machines that will be restarted.

E.  

Ensure all servers in the pool have identicalCPU and memory.

Discussion 0
Questions 16

Which three statements best describe a DPM (distributed power management) policy?

Options:

A.  

You need to define only one policy for your entire OVM environment.

B.  

Can be configured inside oneor more DRM (distributed resources management) policy.

C.  

Automatically migrate the virtual machine to different servers to conserve power.

D.  

Trigger live migration based on a user defined network and CPU threshold.

E.  

Applies only two users left a server in a server pool.

F.  

Automatically power on an Oracle VM server after a user defined time threshold.

Discussion 0
Questions 17

After configuring a DRS policy in your Oracle VM environment you decide to test it by forcing one of your guest to 100% CPU utilization. After 5 minutes nothing happens. List two possible reasons for this.

Options:

A.  

You left the monitoring period at default 10 minutes and Oracle VM has not gathered the second performance samples.

B.  

You have not told Oracle VM manager to start gathering performance matrix which is related to compare for the sample against.

C.  

Even though the guest CPU utilization is above the DRSCPU threshold it was not enough to bring the VM CPU utilization above the threshold.

D.  

You should not publish the policy to all over the Oracle VM servers yet so they don’t know what the thresholds are.

E.  

The DRS policy updated is in direct conflict with the default DPM policy. You should correct this before continuing.

Discussion 0
Questions 18

In one Oracle VM server you have 5 hardware virtualized guests in a running state. How many QEMU-DM background processes should you see running?

Options:

A.  

One. For devices emulation on this server regardless of how many hardware virtualized guests are running.

B.  

Two. One of the handled CPU emulation and one for the devices emulation.

C.  

Four. One master oneslave process for CPU emulation. One master one slave process for devices emulation.

D.  

Five. One for each virtual machine.

E.  

None. QEMU-DM background processes are not used for hardware virtualized guests.

Discussion 0
Questions 19

In your Oracle VM environment you have two shared repositories. The first is NFS share repository name NFS1 and second is iSCSI share repository name iSCSI2. By default where will Oracle VM server mount these repositories?

Options:

A.  

/var/OVS/mount/NFS1/var/OVS/mount/iSCSI2

B.  

/usr/share/OVS/NFS1/usr/share/OVS/iSCSI2

C.  

/OVS/Repositories/NFS/NFS1/OVS/Repositories/iSCSI/iSCSI2

D.  

/OVS/Repositories/NFS1/OVS/Repositories/iSCSI2

E.  

/pool/fs/mnt/NFS1/pool/fs/mnt/iSCSI2

Discussion 0
Questions 20

Which statement best describe Oracle support policy on supporting a virtual machine deployed from an Oracle template?

Options:

A.  

It cannot be supported by Oracle under any condition.

B.  

It can be supported only in development and only when no customization have been made.

C.  

It can be supported only with in the first 30 days of deployment.

D.  

It will be supported in any environment provide your Oracle support contract is current.

E.  

It will be supported in any environment regardless of circumstances.

Discussion 0
Questions 21

What task can an Administrator do that a Manager cannot in Oracle VM Manager?

Options:

A.  

manage serverpools

B.  

manage servers

C.  

manage resources

D.  

manage virtual machines

E.  

create users and groups

F.  

import resources

Discussion 0