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Oracle VM 3 for x86 Essentials Questions and Answers

Question 1

You are preparing for a scheduled outage of an Oracle VM server that host 4 VMs. You will provide with another server intent for live migration of the 4 virtual machines. Which four options apply to this procedure?

Options:

A.

Only one VM at a time will be migrated.

B.

Place the new server into maintenance mode prior to begin migration.

C.

Add the new server to the existing server pool.

D.

Verify that both server involve in the live migration are identical (makes and model of hardware).

E.

Publish the new IP addresses for all virtual machines following the migration.

F.

Create a new server pool and preparation for the live migration.

G.

Place the server (on which we schedule an outage) into maintenance mode to begin live migration.

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Question 2

In hardware virtualized environment, which answer best describes the drivers that are used in dom0 and the guest to communicate block I/O requests?

Options:

A.

QEMU emulation is used in dom0, and a blkfront driver is used in the guest.

B.

A native device driver is used in dom0, and QEMU emulation is used in the guest.

C.

A blkfront driver is used in dom0, and a blkback driver is usedin the guest

D.

QEMU emulation is used in dom0, and a native device driver is used in the guest.

E.

Native drivers are used in both dom0, and the guest.

Question 3

Identify the three statements that correctly describe the use of the job framework and event system in the Oracle VM manager.

Options:

A.

The job framework and event systems are optional which are intend for expert administration who need to automate large complex operation in Oracle VM.

B.

You can suppress events toward excessive notification messages to pages and to emails.

C.

The lock iconthat appears in your object icon in the VM manager indicate that the object is the part of the job. This is a process you cannot perform action on locked object.

D.

Every Oracle VM management action dispatched to an Oracle VM server agent is performed as ajob.

E.

Event provide accountability and an audit trail to identify which job performed by whom, when they were performed and that the status of the operation.

F.

When a job is aborted or fail you must acknowledge the failure to ensure that all the logsby the job are released and system is role backed to its original state.

Question 4

Which statement accurately describe the function of Oracle VM agent in Oracle VM 3?

Options:

A.

The Oracle VM agent dispatchesemail and other notifications to the administrator when it shows server is down or malfunctioning.

B.

The Oracle VM agent is using exclusively by Oracle Enterprise manager to manage and monitor each Oracle VM Server.

C.

The Oracle VM agent is not a process but is the collection of all devices drivers that support para-virtualized virtual machines.

D.

Oracle VM agent is a process that receive process management requests and provide you the notification & configuration data toward Oracle VM manager.

E.

Oracle VM agent is used exclusively for communication between servers in a server pool and the components by which the Oracle VM master is selected.

Question 5

You have a large number of virtual machines that need access to a storage repository. Which answer describes the factors you use to determine your storage repository strategy?

Options:

A.

Oracle VM 3.x has multiple identical storage repositories. Additional identical repositories can be added as needed. A best practice is to select a medium size for the repository based on your usage.

B.

The way to grow an Oracle VM 3.x storage repository is to add additional space to the rootrepository as needed. A best practice is to only configure additional space when determined it is needed.

C.

Oracle VM 3.x has a single fixed storage repository. A best practice is to configure the repository with 30%-40% headroom forgrowth.

D.

The way to grow an Oracle VM 3.x storage repository is to add sub-repositories beneath the root repository. A best practice is to provision one or more larger repositories to avoid the management overhead of numerous sub-repositories.

Question 6

Which two statements describe Oracle Validated Configurations?

Options:

A.

Oracle Validated Configurations provide testing of a "completecomponent stack" andrecommendations on versions, settings, and fixes for the particular stack (software, hardware, and storage) based on running workloads in Oracle's or a partner's test lab.

B.

Oracle Validated Configurations are a mandatory step in Oracle's certification process.

C.

Oracle Validated Configurations are working samples of hardware and software configurations in an Oracle VM environment.

D.

All validated configurations must be run in Oracle's lab.

E.

Oracle Validated Configurations are potential examples of hardware and software configurations whose specifications are validated by Oracle.

Question 7

What two attributes of a virtual machine are not available on the Oracle VM Manager Home screen when the virtual machine is currently powered down?

Options:

A.

Memory Size

B.

Server Name

C.

VNC Port

D.

Server Pool Name

E.

Owner

F.

Number of Virtual CPUs

Question 8

What is the role of second item (server: myserver1) in the scenario where a template is being imported into a storage repository?

Exhibit:

Options:

A.

It identifies the storage server where the template exists.

B.

It identifies the server pool master so that the template will be in the proper server pool.

C.

It identifies the virtual machine server that will be used to clone the imported template.

D.

It identifies thedefault virtual machine server for VM creation from the template.

E.

It identifies a server with sufficient local disk to store the template content temporarily.

F.

It identifies the Oracle VM server assign to target repository that extract the template content and transfer it to the designated storage repository.

Question 9

You have guest VM on an Oracle VM server that cannot communicate with the internet. The guest UUID is 12345. Which two commands on Oracle VM server will have troubleshooting this issue?

Options:

A.

ovmm netstat –a to get the current status of all network connections.

B.

dom0-system-display-network to show the status of all network interfaces.

C.

Ifconfig –a to display list ofnetwork interfaces and their current status.

D.

xm network –list 12345 to get the list of virtual interfaces attached to the guest.

E.

esxlist –v 12345 to list all the network interfaces attached to the guest.

Question 10

Networking is not working for several guests on a particular host. Which two commands can help troubleshoot the networking?

Options:

A.

xm list -1 will show all of the network interfaces for all of the virtual machines, which can be used to see which bridge is having problems.

B.

config_network.py -l will show which network interfaces are in use, and which are having problems.

C.

brctl show will show the status of each bridge, and which VIFs are connected to it. This canthen be used to determine which bridge is having problems.

D.

System-config-network will list the virtual interfaces, which can be inspected to see which are having problems.

E.

ifconfig -a will show a list of all network interfaces and their current status, which will help determine which bridge is having problems.

Question 11

Which two are characteristics of block I/O in a fully hardware virtualized configuration?

Options:

A.

The virtual machine I/O path only uses the block device driver from dom0.

B.

The virtual machine relies onemulation of the hardware in dom0 for block I/O.

C.

The virtual machine I/O path includes the native block device drivers from the guest operatingsystem.

D.

The virtual machine does not need a block device driver.

E.

The virtual machine must provide emulation of the hardware through its own IOEMU drivers.

Question 12

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.

Question 13

A virtual machine is needed once per week to run reports, but the rest of the time it Is idling. What method will unallocate resources such as CPU and memory, while keeping the virtual machine intact and ready for rapid re-deployment?

Options:

A.

Pause the virtual machine when not in use, then unpause it when needed.

B.

Suspend the virtual machine when not in use, then resume it when needed.

C.

Live migrate the virtual machine to a spareserver when not in use, then live migrate it back when needed.

D.

Power off the virtual machine when not in use, then power it back up when needed.

Question 14

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

Question 15

In Oracle 2.2.x under which directory does each repository create a mount point and what is the name of subdirectory?

Options:

A.

Each repository will create mount point under /OVS, with a directory named using the UUID of the respiratory.

B.

Each repository will create a mount point under /var/ovs, In a directory named using the UUID ofthe repository.

C.

Each repository will create a mount point under /var/ovs/mount, in a directory named using theUUID of the repository.

D.

Each repository willcreate a mount point under /OVS, with a directory named using a sequencenumber starting at 0.

E.

Each repository will create a mount point under /var/ovs, with a directory named using a sequence number starting at 0.

F.

Each repository will create a mountpoint under /var/ovs/mount, with a directory named using a sequence number starting at 0.

Question 16

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

Question 17

What is the effect of running a server pool restores?

Options:

A.

When you restore a server pool, all the data stored in the Oracle VM Manager database Isdeleted, and the data in the server pool master and virtual machine servers is used to restock the database.

B.

When you restore a server pool, all servers are removed from the pool, and the data in the database is removed, restoring the server pool to its initial state.

C.

When you restore a server pool, all the data stored in the server pool master will be deleted, and will be synchronized with the latest information from the Oracle VM Manager database. The server pool master is responsible for updating the individual Oracle VM servers' agent databases.

D.

When you restore a server pool, a signal is sent out toeach server in the pool, which responds with the current state of all of the virtual machines it hosts. This data is used to restore the data in the Oracle VM database.

Question 18

Which two steps would you take to configure IPMI for a server in your Oracle VM environment?

Options:

A.

Configure the user name, password and IP address using Oracle VM agent.

B.

Configure the user name, password and IP address using the Oracle VM manager.

C.

Edit the IPMI.conf file on the Oracle VM server to enable automatic power setting.

D.

Enable Wake-ON-LAN in the server BIOS.

E.

Enable automatic power saving in Oracle VM Manager.

Question 19

When an Oracle VM server starts, by default how does it map physical NICs to Xen bridges?

Options:

A.

Each physical NIC is mapped to one or more virtual networks, each of which is assigned a Xen bridge.

B.

One Xen bridge will be created for each physical NIC.

C.

All physical NICs are mapped to a single Xen bridge.

D.

No mapping of physical NICs to Xen bridges is done by default.

E.

The first physicalNIC is assigned to dom0's management; a Xen bridge is then created for each of the remaining cards.

Question 20

What is the purpose of virtual machine network types?

Options:

A.

Provide a separate network segment use for the secure live migration of VM.

B.

Provide anetwork capable of managing all virtual machines through Oracle VM manager.

C.

Provide a separate network for all users and application traffic to/from virtual machines.

D.

Allow virtual machines to access all virtual disks images without interfering withthe cluster heartbeat.

E.

Allow Oracle VM manager to monitor the status of all virtual machines.

Question 21

Which option describes the purpose of the Generic Desktop Provider?

Options:

A.

It connects to a pool of virtual machines with a RDP service.

B.

It connectsto any virtual or any physical machine with a RDP service.

C.

It connects to any physical machine regardless of operating system.

D.

It connects to any virtual or any physical machine with a VNC service.

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