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Oracle VM 3 for x86 Essentials


Exam A

QUESTION 1What component of Oracle VM Product is specifically responsible for the automatic failover process?

A. OCFS2B. Server Pool MasterC. Oracle ClusterwareD. utility serverE. virtual machine server

Correct Answer: BSection: (none)Explanation

Explanation/Reference:http://docs.oracle.com/cd/E11081_01/doc/doc.21/e10898/ha.htmTo enable HA, you must first make sure all Virtual Machine Servers in the server pool: Use the same shared storage. Are in the same OCFS2 or NFS cluster. Are Oracle VM Server Release 2.1.2 or above. Have the same cluster root, which is a specially designated shared storage used for heatbeating in the cluster. For example, the cluster root might beexample.com:/OVS for an NFS cluster, or /dev/sdd6 for an OCFS2 cluster. The heartbeat file would be located at example.com:/OVS/.server_pool_hb foran NFS cluster. There is no heartbeat file for an OCFS2 cluster as one is in-built in the file system. Have the cluster root mounted at /OVS. All other storage may be mounted at the standard location of /OVS/uuid. Have moved any /OVS mount points (set in FSTAB for Releases 2.1 or 2.1.1) to the /etc/ovs/repositories file. All storage, even that mounted at /OVS,must be maintained in the /etc/ovs/repositories file. You can move the mount points to the /etc/ovs/repositories file with the following command: # /usr/lib/ovs/ovs-cluster-check --alter-fstab Have a shared cluster root at /OVS, and not local, using clustered OCFS2 on SAN, or ISCSI storage, or NFS on NAS. The default local storage is OCFS2,and is not supported with HA.

QUESTION 2


What two steps would best harden an Oracle VM Server installation?


A. Avoid installing additional software in dom0.B. Enable firewalling in dom0.C. Install virus checking software in dom0.D. Use Trusted Computing Modules for Xen0.E. Do not share physical network cards between hosts that are on a different subnet.

Correct Answer: AESection: (none)Explanation

Explanation/Reference:

QUESTION 3A virtual machine is copied onto portable media and transferred to another machine In a different server pool. The virtual machine is then run on the new host, but itfalls to boot. What are two potential problems?

A. The virtual machine was not exported properly using the Oracle VM Manager.B. The virtual machine configuration file needs to be changed to update the new paths to its virtualdisks.C. The virtual machine configuration file lists bridges that do not exist on the new host.D. The virtual machine has not been registered with Oracle VM yet.

Correct Answer: ADSection: (none)Explanation


QUESTION 4Which disk protocol is the default disk type for disks in a paravirtualized guest?


A. HD (IDE)B. SD (SCSI)C. XVDD. RAW

Correct Answer: ASection: (none)Explanation


QUESTION 5In hardware virtualized environment, which answer best describes the drivers that are used in dom0 and the guest to communicate block I/O requests?

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 used in 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 6What two steps are required to create a root repository in an Oracle VM server pool?

A. Use the repos.py command with the --new option, along with either a device path or an nfs path.B. Use the repos.py command with the --new option, along with the UUID assigned to the repository.C. Use the repos.py command with the--new option, along with the UUID assigned to the repository and a device path.D. Use the repos.py command with the path. —root option, along with either a device path or an nfs path.E. Use the repos.py command with the--root option, along with the UUID assigned to the repository.




QUESTION 7When converting hardware virtualized machine to full PV, the guest falls to boot. What line in vm.cfq is likely leftover from the HVM configuration?

A. vnclisten = '0.0.0.0'B. pae =1C. builder=’hvm’D. serial=’pty’

Correct Answer: CSection: (none)Explanation

Explanation/Reference:Explanation:

My suggestion is to use builder=’hvm’ because it works fine for once I have failed to booting the server but when I made it builder=’hvm’ it booted fine. Another thingis if you use linux os as a mother os then you can leftover this builder=’hvm’ but if you use windows2003 then you have to use builder=’hvm’.

QUESTION 8The server hosting the Oracle VM manager database repository has an unscheduled outage. What are the two consequences of this issue?

A. Virtual machines will continue to run but they cannot be stopped.B. Virtual machines will continue to run but they will have limited network access until the repository restored to the services.C. Virtual machines will continue to run but Oracle VM manager will not be functional until the manager repository is restored to the services.D. Virtual machines will be automatically suspended until the repository restored to services.E. The database repository should be restored to service ASAP because degradation in performance and availability of Oracle VM servers and their guest virtual

machine will begin to occur.F. Certain management functions include template management and vnic management may be extremely difficult or impossible to perform.

Correct Answer: CESection: (none)Explanation



QUESTION 9When using NFS, what technology is used to control locking on the NFS mount?

A. Oracle VM uses the same DLM (distributed lock manager) for NFS as it does for OCFS2 partitions.B. The standard NFS drivers are sufficient to properly lock files in an NFS repository.C. Oracle VM ships with the IO-EMU drivers, which provide proper locking for files on an NFS repository.D. Oracle VM ships with a DM-NFS server, which runs on the master pool server and handles distributed file locking for an NFS repository.



QUESTION 10What task can an Administrator do that a Manager cannot in Oracle VM Manager?

A. manage server poolsB. manage serversC. manage resourcesD. manage virtual machinesE. create users and groupsF. import resources

Correct Answer: ESection: (none)Explanation

Explanation/Reference:Explanation: Oracle VM Manager can manages the server pools, resources, virtual machines and also it can import resources but it cannot create the users andgroups.

QUESTION 11You 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?


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 forthe 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 additionalspace 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 for growth.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.


Explanation/Reference:Explanation: You can use the split technology to split your partitions as a 2 GB space and can define the max size and when needed Oracle VM can automaticallyadd the more storage there and also you can modify the max size of the storage repository.

QUESTION 12What requirements apply to shared storage on an HA Server Pool?

A. Each server in the pool must have a connection to the shared storage, using NFS, ISCSI or a SAN Either ext3 or OCFS2 should be used to format the sharedfile system.

B. Each server in the pool must have a connection to the shared storage, using NFS, (SCSI or a SAN. Either gfs or OCFS2 should be used to format the sharedfile system.

C. t least one server in the pool must have a connection to the shared storage, using iSCSI or a SAN. Either ext3 or OCFS2 should be used to format the sharedfile system.

D. Each server in the pool must have a connection to the shared storage, using iSCSI or a SAN. Only OCFS2 should be used to format the shared file systemwhen using iSCSI or a SAN.

E. Each server in the pool must have a connection to the shared storage, using NFS, iSCSI or a SAN. Only OCFS2 should be used to format the shared filesystem when using iSCSI or a SAN.

Correct Answer: E


Section: (none)Explanation


QUESTION 13During installation of Oracle VM Manager to a new Oracle Enterprise Linux server, the installer fails with a message indicating that there is insufficient swap space.

What is the cause for this error?

A. The installer has determined that the Oracle application server's (OC4J) minimum requirement for swap space has not been met.B. The installer has determined that the Oracle Database XE server's minimum requirement for swap space has not been met.C. The installer has determined that there is insufficient swap space to unpack the installer into the /var subdirectory.D. The installer has determined that the swap space recognized by the system has been incorrectly formatted to use TMPFS instead of SWAPFS.



QUESTION 14In a paravirtualized environment, which answer best describes the drivers that are used in domO and the guest to communicate network I/O requests?

A. A netback driver is 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 driver is used in dom0, and a blkbck driver is used in the guest.E. Native drivers are used in both dom0 and the guest.


Explanation/Reference:http://mokumsolutions.com/chapter-2-oracle-vm-x86-reference-design-and-architectural-introduction


QUESTION 15The Oracle VM administrator is having issues shutting down a virtual machine. Which log file will best help troubleshoot whether the shutdown command is beingsuccessfully executed on the target server?

A. /var/log/ovs-agent/ovs_performance.logB. /var/log/ovs-agent/ovs_operation.logC. /var/log/xen/xend.logD. /var/log/xen/xend-debug.log



QUESTION 16A RedHat Enterprise Linux installation with three installation CDs needs to be created. What is the proper way to set up the ISO images?

A. The ISO images should each be placed in their own subdirectory under/OVS/iso_pool.B. The ISO images should be joined into one larger ISO image using the M75cat command, then placed under a subdirectory of/OVS/iso_pool.C. The ISO images should all be placed under/OVS/iso_pool, using distinct names to differentiate them.D. The ISO images should be placed in one subdirectory under/OVS/seed_pool, named according to the vendor and distribution name.E. The ISO images should be placed in one subdirectory under/OVS/iso_pool, named according to the vendor and distribution name.



QUESTION 17What two attributes of a virtual machine are not available on the Oracle VM Manager Home screen when the virtual machine is currently powered down?

A. Memory SizeB. Server NameC. VNC Port


D. Server Pool NameE. OwnerF. Number of Virtual CPUs

Correct Answer: BCSection: (none)Explanation

Explanation/Reference:Explanation: If you properly shutdown the virtual machine then you will not get the Server Name surely �. So that one correct answer is Server Name. Let’s findanother correct answer.


Follow the picture and you will find that the virtual machines which are shutdowed and there is available of Owner and Server Pool Name. But if the machine is notup there so how will you get the vnc port for that machine :D? Correct answer is B and C.

QUESTION 18Which three attributes of an existing virtual disk can be changed using Oracle VM Manager?

A. Virtual Disk NB. Virtual Disk SizeC. Hard Drive TypeD. QoS EnabledE. Priority Class

Correct Answer: CDESection: (none)Explanation


QUESTION 19A server with 16GB of RAM is only showing 8GB available after boot, but before running any virtual machines. What method will best find the issue?

A. Look in /var/log/xen/xend.log for hardware-related messages.B. Use xm dmesg to see messages logged during the booting of the Xen hypervisor.C. Use dmesg to see messages logged during the booting of dom0.D. Look in /var/log/xen/xend-debug.log for hardware-related messages.



QUESTION 20What two configuration files are associated with an OCFS2 cluster?


A. /etc/ocfs2/cluster.confB. /etc/sysconfig/ocfs2C. /etc/sysconfig/cluster.confD. /etc/sysconfig/o2cb

Correct Answer: ADSection: (none)Explanation

Explanation/Reference:D:# ls -la /etc/sysconfig/o2cb -rw-r--r-- 1 root root 873 Eyl 6 10:24 /etc/sysconfig/o2cb

A:root@ovm-node-dell ~]# ls -la /etc/ocfs2/cluster.conf -rw------- 1 root root 169 Eyl 6 10:24 /etc/ocfs2/cluster.conf[root@ovm-node-dell ~]# cat /etc/ocfs2/cluster.conf node: ip_port = 7777 ip_address = 172.16.0.10 number = 0 name = ovm-node-dell cluster = ocfs2

cluster: node_count = 1 name = ocfs2

QUESTION 21How can you tell that a virtual network interface in a virtual machine is set up to use Paravirtualization?

A. The vm.cfg file will have axenbrX = [type=netfront]setting.

B. The vm.cfg file will have avif = [type=netpv]setting.

C. The vm.cfg file will have avif = [type=netfront]


setting.D. The vm.cfg file will have a

xenbrX■ ttype=pvfront]setting.

E. The vm.cfg file will have axenbrX = [type=netpv]setting.



QUESTION 22After installing the PV drivers into a Windows guest, the networking fails on reboot. What is likely wrong?

A. The network type has not been changed from Paravirtualized to Fully Virtualized (the ioemu driver is not specified in the vm.cfg).B. After install the PV drivers, the MAC address of the network interfaces must be changed in vm.cfg.C. After installing the PV drivers, the bridge setting in vm.cfg is lost and must be reset.D. The network type has not been changed from Fully Virtualized to Paravirtualized (the netfront driver is not specified in vm.cfg).

Correct Answer: DSection: (none)Explanation

Explanation/Reference:Oracle® VM Windows Paravirtual Drivers Installation Guide Release 2.0 for Microsoft WindowsE15298-02 May 2010 6.4 Network Devices May FailIf you install the Windows PV drivers into a guest with the vif type set to ioemu in the guest configuration file (vm.cfg), the network device(s) may fail. The WindowsDevice Manager displays an error code 10 and an exclamation point (!) to show the network driver cannot be started.This is caused by the network type being set incorrectly in the guest configuration file.The network card type can be set three ways:■ type=ioemu: Network card is available in QEMU mode only.■ type=netfront: Network card is available in paravirtualized mode.■ No type entry: Network card is available in both QEMU and paravirtualizedmodes.


Workaround:The issue is only applicable to Oracle VM Server 2.1.5 and does not apply to Oracle VM Server 2.2 or later.If this issue occurs, change the network type from ioemu to netfront in the guest configuration file. Alternatively, delete the network type entry. You can make thischange using Oracle VM Manager, or manually. To change the configuration manually:1. Shut down the guest.2. Edit the guest configuration file (vm.cfg) and change the type=ioemu entry to type=netfront, or delete the entry.3. Restart the guest.The network driver is started.

QUESTION 23Customers looking for pre-tested, validated architectures, with documented best practices for software, hardware, storage, and network components shouldconsider which Oracle offering?

A. Oracle AIA (Application Integration Architecture)B. Oracle Validated ConfigurationC. Oracle SupportD. Oracle ACS (Advanced Customer Services)E. Oracle MetaLink



QUESTION 24What are the correct steps for doing a V2V conversion?

A. 1. Copy the entire virtual machine directory for the guest to be converted to the seed_pool directory.2. Open Oracle VM Manager to the Import Virtual Machines page.3. Click the Import button and choose Select from Server Pool.4. Select the server pool and virtual machine image name.

B. 1. Copy the entire virtual machine directory for the guest to be converted to the running_pool directory.2.Open Oracle VM Manager to the Import Virtual Machines page.3. Click the Import button and choose Select from Server Pool.4. Select the server pool and virtual machine image name.

C. 1. Copy the entire virtual machine directory for the guest to be converted to the running_pool directory.2. Open Oracle VM Manager to the Import Virtual Machines page.3. Click the Import button and choose Linux/Windows V2V Import.


4. Select the server pool and virtual machine image name.D. 1. Copy the entire virtual machine directory for the guest to be converted to the seed_pool directory.

2. Open Oracle VM Manager to the Import Virtual Machines page.3. Click the Import button and choose Linux/Windows V2V import.4. Select the server pool and virtual machine image name



QUESTION 25When setting up an iSCSI repository, what three steps must be completed before running the repos.py commands?

A. The iSCSI LUN must be formatted with the OCFS2 file system.B. The iscsi-adm service must be installed and running.C. The iSCSI daemon must be installed and running.D. Multipathing must be configured and the multipath daemon must be running.E. The iSCSI LUNs must be mapped to local devices.

Correct Answer: ABCSection: (none)Explanation


QUESTION 26When setting up a server pool, enabling what option will persist the IP address of a server pool master after an HA failover?

A. High Availability ModeB. Server Pool Virtual IPC. Live MigrationD. 02CB serviceE. OCFS service

Correct Answer: C




QUESTION 27What is the best use case for using the JeOS tools to build templates?

A. Windows administrators looking for a wizard-based approach to template-building Linux templates.B. Linux administrators looking for a command-line approach to template-building Linux templates.C. Windows administrators looking for a wizard-based approach to template-building Windows templates.D. Linux administrators looking for a command-line approach to template-building Windows templates.E. Linux administrators looking for a command-line approach to template-building Windows and Linux templates.



QUESTION 28Which two configuration files specify the cluster stack, boot cluster and network settings for the OCFS2 duster?


A. /etc/ocfs2/cluster.confB. /etc/sysconfig/ocfs2C. /etc/sysconfig/cluster.confD. /etc/sysconfig/o2cb

Correct Answer: BDSection: (none)Explanation



QUESTION 29Describe the certification process for Oracle products on Oracle VM.

A. With the exception of Oracle applications, all Oracle products are certified to run with Oracle VM immediately upon release.B. Each Oracle product is responsible for stating their certification timeframe for Oracle VM support, but in no case will that delay be greater than six months.C. Unless otherwise stated, all Oracle products that run on supported platforms are certified to run with Oracle VM immediately upon release.D. Oracle products that run on supported platforms are certified immediately upon release. Oracle products on non-supported platforms are certified on a case-by-

case basis.



QUESTION 30What is the correct sequence for importing a P2V image?

A. 1. Insert Oracle VM Manager disk into server to be converted.2. Boot server and type linux p2v at the boot prompt.3. Configure settings for virtual machine import.4. In Oracle VM Manager, go to the Virtual Machine Images page and click on Import.5. Enter information on the virtual machine, then give the IP address of the server to be imported

B. 1. Insert Oracle VM Manager disk into server to be converted.2. Boot server and type linux p2v at the boot prompt.3. Configure settings for virtual machine import.4. Wait for the conversion to finish, then go to the Oracle VM Manager.5. Enter information on the virtual machine, then give the IP address of the server to be imported.

C. 1. Insert Oracle VM Server disk into server to be converted.2. Boot server and type linux p2v at the boot prompt.3. Configure settings for virtual machine import.4. In Oracle VM Manager, go to the Virtual Machine Images page and click on Import.5. Enter information on the virtual machine, then give the IP address of the server to be imported.

D. 1. Insert Oracle VM Server disk into server to be converted.2. Boot server and type linux p2v at the boot prompt.


3. Configure settings for virtual machine import.4. Wait for the conversion to finish, then open a browser to the IP address of the server being converted.5. On the page presented, select the server pool to be targeted.



QUESTION 31What information is required to connect to a YUM repository from Oracle Template Builder?

A. the URL of the YUM repository onlyB. the URL of the YUM repository and a SHA5 key from Oracle for the repositoryC. the name and URL of the YUM repository, along with the user name and password for the YUM server's administratorD. the name of the YUM repository only



QUESTION 32A customer has installed Oracle VM Manager from the Oracle-provided template onto a server pool of ten servers. As additional VMs are being added, the userinterface for the Oracle VM Manager application is becoming slow.

What is the problem?

A. The Oracle VM Manager guest does not have the HA flag set, and is therefore not being moved to a server with sufficient capacity.B. The Oracle VM Manager guest is on a server that has insufficient memory.C. The Oracle VM Manager guest is on a server that has insufficient CPU capability.D. The Oracle VM Manager guest has been put in maintenance mode by the Administrator.E. The Oracle VM Manager guest is located on a master pool server, which is consuming a large portion of the I/O and processing of the server.

Correct Answer: A




QUESTION 33Which two hardware requirements exist for an HA-enabled server pool with Live Migration?

A. Each server in the pool must have the exact same model of processor.B. Each server in the pool must have the same amount of memory.C. Each server in the pool must have similar processors, specifically vendor, family and steppings.D. Each server in the pool must be connected to shared storage.E. Each server in the pool must be large enough to support the largest virtual machine in the pool

Correct Answer: CDSection: (none)Explanation


QUESTION 34Which two are characteristics of block I/O in a fully hardware virtualized configuration?

A. The virtual machine I/O path only uses the block device driver from dom0.B. The virtual machine relies on emulation 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 35


If the server pool data on the server pool master is damaged or corrupted, what is the correct course of action to restore the server pool?

A. On each Oracle VM server, stop the agent, delete all files in /etc/ovs-agent/db, then restart the agent.B. From the Oracle VM Manager, select the Server Pools tab and do a Restore operation on the server pool.C. On the server pool master, stop the agent, delete all files in /etc/ovs-agent/db, then restart the agent.D. From the Oracle VM Manager, select the server pool master on the Servers tab, and Reboot the server.



QUESTION 36What does tools are available from 0racle that best describe virtual machine performance ofa virtual machine?

A. xm listB. oswatcher installed in the guestsC. topD. xm topE. cat /proc/cpuinfo



QUESTION 37A new shared virtual disk is created by the Administrator and placed in a group named Development. A user with Development as a group creates a new virtualmachine but cannot see the new shared disk when trying to attach it using the Oracle VM Manager.

What is the problem?

A. The virtual machine is hardware virtualized, not paravirtualized, and shared virtual disks are not visible to hardware virtualized guests.B. The user needs approval from the Administrator to see the shared disk, even though he is in the Development group.C. The Administrator needs to make the shared virtual disk public before it can be seen by members of the Development group.


D. The user's virtual machine is not in the Development group.



QUESTION 38A software vendor is using JeOS to create new templates for their product. They need to provide a simple way to reset their templates to the initial configuration fortesting purposes. What method should they use to accomplish this?

A. Use the xm save command to save the initial template in pristine form, then use xm restore to bring it back to the original configuration.B. Use a snapshot of the initial template, and revert back to it when necessary.C. Use cleanup scripts to reset the IP addresses, remove files from temp directories, and replace application configuration files with defaults.D. Modify the grub.conf file to include a -cleanup option in the grub command line, which will run the cleanup scripts added by Oracle.E. Use JeOS with the -c option to include a cleanup script that will revert all files back to their initial state.



QUESTION 39An Oracle VM Server is continually losing its connection to the repository. What service is responsible for maintaining timeouts for the OCFS2 cluster stack?

A. ocfs2B. o2cbC. ovs-agentD. ovsrepositories




QUESTION 40What clustered file system (s) are supported for storage poolthat will be shared In Oracle VM?

A. GFS onlyB. GFS and NFS onlyC. OCFS2 onlyD. OCFS2 and GFS onlyE. GFS, OCFS2 and NFSF. NFS only



QUESTION 41A customer wants to use hard partitioning with Oracle VM to restrict the number of cores that can be used by a virtual machine to four cores.

Which method will best accomplish that goal?

A. In Oracle VM Manager, set the maximum number of CPUs to 4.B. Use the xm vcpu-pin command on the domain once it is up and running, using 4 for the CPUs parameter.C. Modify the cpus line in vm.cfg to set the cpus to 0-3.D. Use the xm vcpu-set command before the domain is up and running, using 4 for the CPUs parameter.E. Modify the vcpus line in vm.cfg to read: vcpus=4.



QUESTION 42As 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?

A. throttles (restricts) the inbound and outbound network traffic for a virtual machine vifB. throttles (restricts) the inbound and outbound network traffic for a physical network interfaceC. throttles (unrestricts) the inbound and outbound network traffic for a virtual machine vifD. throttles (unrestricts) the inbound and outbound network traffic for a physical network interfaceE. is not yet available with Oracle VM 2.2 but will be added in a subsequent release



QUESTION 43A customer decides to use 2 large servers to load balance a mix of large and small virtual machines. Each server has 64GB of RAM and 8 quad-core CPUs. Thereare 14 virtual machines, 6 of which use 12GB of virtual memory and 16 vCPU each, and the remaining 8 use 2GB and 4 vCPUs each. What two issues will thecustomer likely discover when one of the servers fails?

A. Not all of the virtual machines on the failed server will be able to restart on the remaining serverdue to lack of vCPUs.B. Not all of the virtual machines on the failed server will be able to restart on the remaining serverdue to lack of memory.C. Live migration will be unavailable until the second server is restored.D. Not all of the virtual machines on the failed server will be able to restart on the remaining serverdue to lack of vNICs.E. Not all of the virtual machines on the failed server will be able to restart on the remaining serverdue to lack of shared storage.



QUESTION 44What two steps are required to ensure that virtual machines failover to a new server when their current server goes down?

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 identical CPU and memory.

Correct Answer: ABSection: (none)Explanation

Explanation/Reference:Explanation: In the question two steps are required so that you have to answer two here.Oracle Clusterware Ensure that your server is going to be restarted facility and it will provide you the failover feature for you as well. You have to turn on HA Mode inthe server pool.

QUESTION 45A 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?

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 spare server 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 46Intel and AMD are adding functionality to their microprocessors to improve performance of virtualized environments.

Which type of virtualization MOST benefits from these technologies?

A. Emulation-based technologiesB. ParavirtualizationC. Hardware VirtualizationD. Hardware PartitioningE. Operating System Partitioning



Explanation/Reference:Explanation:Paravirtualized (PVM) -- A software interface similar but not identical to the underlying hardware is presented to the guest operating system. Paravirtualizationprovides hooks for guest instructions so that complicated tasks can be performed by the host instead of the virtual machine, where performance is worse.Paravirtualization requires that the guest kernel is ported to be made aware of the virtual environment.

QUESTION 47Identify the mechanism for combining one or more network interfaces to provide better throughput and failover capabilities.

A. VLANB. Port authenticationC. Spanning TreeD. Link AggregationE. Dedicated link


Explanation/Reference:Reference: http://docs.oracle.com/cd/E36500_01/E36503/html/performance-networking.html (see 7.5.2)

QUESTION 48Which option describes the purpose of the Generic Desktop Provider?

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



Explanation/Reference:Reference: http://docs.oracle.com/html/E26214_02/generic-desktop-provider.html (Second para)

QUESTION 49In order to import a VM template into an Oracle VM storage repository using the Oracle VM Manager where should the template be staged?

A. In the import directory of the shared storage repository.B. In the Server pool repository.C. On another mounted file system accessible to Oracle VM manager.D. On a web server supporting HTTP HTTPS or FTP protocol.E. In any directory on the Oracle VM manager host system.



QUESTION 50In which two of the following, disk multipathing enabled for a block device on an Oracle VM server?

A. When local disks are added.B. When iSCSI disks are attached.C. When fiber channel disks are attached.D. When a new NFS repository is added.E. When a virtual disk is added to a guest virtual machine.



QUESTION 51You are installing the Solaris 11 OVM template downloaded from Oracle edelivery site. You have previously imported and installed these templates with success onanother server. However, when you attempt to start the newly imported virtual machine it through an error indicating that HVM is required for this operation and


virtual machine fails to start. There are currently two Para-virtualized VM are already running on the Oracle VM server where the failure is occurring. Which twoexplanations and situations might remedy this problem?

A. Download might be corrupt. Download the template again and attempt the import or use a copy of the template that was previously imported.B. Virtual machine is configured improperly. Navigate to edit the virtual machine setting. In the Oracle VM manager on the first page change the domain type from

XEN PVM to XEN HVM using the pull down menu and then start the machine.C. Hardware virtualized CPU extension VT-X or AMD-V are not enabled is the machine BIOS setting. Enable the feature in the BIOS for virtualization support and

to enable the virtual machine to start.D. The imported template is not compatible with the OVM server. Locate the vm.conf file for the Solaris VM edit the file and add the line “builder=HVM” save the file

and start the VM.E. Server does not support the hardware virtualization. Build the Solaris VM on the server that support hardware virtualization.



QUESTION 52Which three statements concerning Oracle virtual assembly builder are correct?

A. All components of Oracle virtual assembly builder are accessible from a tab in Oracle VM manager.B. Oracle virtual assembly builder manage the full life cycle of assemblies including introspection, configuration, preparation and development.C. Standard resources (such as mail, printer, identity management etc.) all servers must be manually configured of the e-submit development is complete.D. Assembles are comprised of interrelated software appliances along with metadata catalog that describes their relationship.E. Assemblies promote rapid development, lower operation cost and simple implementation of the best practices.

Correct Answer: BCESection: (none)Explanation


QUESTION 53Which three statements best describe a DPM (distributed power management) policy?

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


B. Can be configured inside one or 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.

Correct Answer: CDFSection: (none)Explanation


QUESTION 54Which statement accurately describe the function of Oracle VM agent in Oracle VM 3?

A. The Oracle VM agent dispatches email 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 55Which network driver would a hardware virtualized window guest with the para-virtualized drivers installed use?

A. netfrontB. netbackC. blkfrontD. blobkE. QEMU




QUESTION 56What will happen if OVM server pool master server crashes?

A. All servers in server pool will hang until the master server have been brought back up.B. All servers in server pool will 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 automatically take over in its place.E. A new master server will be assigned through OVM Manager.



QUESTION 57Which three statements are true about the server pool file system and creating a cluster server pool?

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.

Correct Answer: BDESection: (none)Explanation



QUESTION 58Which set of steps should you follow to create a working DPM policy?

A)

B)

C)


D)

E)


A. Option AB. Option BC. Option CD. Option DE. Option E



QUESTION 59Which server pool type required the use of NFS shares file storage repository?

A. A server pool comprised of server of different makes and models.B. A cluster server pool.C. A server pool that support thin provisioning.D. Un-clustered server pool.E. A server pool with servers that do not have OCFS2 installed.



QUESTION 60In a para-virtualized environment which network drivers are used in dom0 and guest VM to communicate between one another?

A. The guest uses netfront and dom0 uses netbk.B. The guest uses netbk and dom0 uses netfront.C. The guest uses netfront and dom0 uses native drivers.D. Both the guest and dom0 uses native frivers.E. Both the guest and dom0 uses emulated drivers.




QUESTION 61Which statement is true about Oracle VM server in the server pool where a P2V converted VM machines will be deployed?

A. The server where the template is deployed should have enough local disk to store the virtual disk images.B. The server must be in the clustered server pool.C. The server must have more memory then the host that was converted.D. The P2V converted virtual machine must have a unique name.E. The server in the server pool must have hardware virtualized support (have intel VT-X or AMD-v chip feature).



QUESTION 62Prior to running runInstaller.sh to install the Oracle VM manager for OVM 3. Which three prerequisite items should be satisfied?


A. Verify that MySQL database installed.B. Verify that all OVM servers are installed and belong to proper server pool.C. Ensure that the OS software version met the minimum requirement of OVM Manager.D. Make sure that the /u01 directory has adequate space for the installation.E. Confirm that the network ports to be used are available and they are accessible through the firewall.

Correct Answer: CDE




QUESTION 63While trying to create a new virtual machine you are receiving an error from Oracle VM Manager. What log file does the manager write to?

A. server.log in the system log directory.B. error.log in the OVM manager bin directory.C. admin.log in the xcn log directoryD. adminserver.log in the web logic server log directory.E. diagnostocts.log in the web logic server log directory.



QUESTION 64You are preparing to create the several virtual machines from a template for development team. Members have different need, which three capabilities can youprovide using only Oracle VM Manager?

A. Selecting which virtual disk will be cloned.B. Changing Linux packages installed in the target VM.C. A choice of thin cloning, sparse cloning and non-sparse cloning for virtual disk.D. Propagating of target virtual machine to multiple servers in one operation.E. The assignment of a storage to physical disk.F. Propagating of target VM to multiple server pools in one operation.

Correct Answer: ACDSection: (none)Explanation



QUESTION 65You 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 virtualmachines. Which four options apply to this procedure?

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.

Correct Answer: ACDGSection: (none)Explanation


QUESTION 66In which Oracle VM environment would you choose to increase the priority and processor cap % on one or more VMs?

A. Where there 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.



QUESTION 67Which four operations can be performed using the cloning facility of Oracle VM manager?


A. Display a list of all available clone definitions.B. Create a new virtual machine from a template.C. Create a new modified template from an existing template.D. Create a template from an existing virtual machine.E. Create a new virtual machine from an existing virtual machine.F. Deploy all virtual machine in an assembly in a single step.

Correct Answer: BCDESection: (none)Explanation


QUESTION 68You are installing Oracle VM manager for use in production environment. The installation software provides a choice for you to install Oracle database 11g expressedition or connect to an existing oracle database. What are the two reasons that you might want to connect to an existing Oracle database?

A. An Oracle database is not supported by Oracle XE database might not be readily available.B. Accessing an existing database over the LAN is much faster than accessing a locally installed database due to resource content.C. Oracle XE has restrictions such as limitation on total database size and number of processor used core which don’t constrains other Oracle database editions.D. Oracle VM manager is not fully functional when Oracle XE is used for its repository.E. Oracle XE database cannot be backed up.F. A repository created in Oracle XE cannot be migrated to another edition of Oracle database due to restrictions.

Correct Answer: ACSection: (none)Explanation


QUESTION 69In your Oracle VM environment, you have been troubleshooting intermittent crashes of an Oracle VM server. Oracle support has determined that the crashes arecaused 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 youincrease the heartbeat dead threshold from the default of 31 to a value 61. Which file store this configuration parameter?


A. /etc/myOCFS2.conf.B. /etc/myOVS/o2cb.C. /etc/sysconfig/esxcluster.conf.D. /etc/OCFS2/manager.config.E. /etc/sysconfig/o2cb.



QUESTION 70Which two steps would you take to configure IPMI for a server in your Oracle VM environment?

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.

Correct Answer: BDSection: (none)Explanation


QUESTION 71Which statement best describe Oracle support policy on supporting a virtual machine deployed from an Oracle template?

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.




QUESTION 72Which statements about Oracle VM agent architecture are accurate?

A. Oracle VM agent are daemon processes that automatically initiated when an Oracle VM server is booted.B. Oracle VM manager always uses SSH command directly to dom0 on each Oracle VM server when the agent does not respond.C. Oracle VM manager is capable of communicating with multiple server pools master server.D. Multiple server pools master server should be running 1 active and 1 standby in each server pool to provide redundancy and fault tolerance.E. All communication from one agent to other agent with in a server pool routed through the Oracle VM manager.F. You can specify using Oracle VM manager which Oracle VM server assist this server pool as master server.

Correct Answer: ACFSection: (none)Explanation


QUESTION 73What are the minimum component that comprised a template imported by Oracle VM manager?

A. One virtual disk image (.img) file.B. A configuration file (.vmx) and virtual disk image (.vmdk) file.C. A virtual machine configuration file (vm.conf), a metastate file (.vix), a BIOS file (.nvram) and one virtual disk image (.img) file.D. A virtual machine configuration file (vm.conf) and at least one virtual disk (.img) file.E. One disk image (.img) containing the root file system and another disk (.img) containing the boot file system.




QUESTION 74Identify the three components of the JeOS tool kit.

A. A command line utility to customize and create a system image.B. Microsoft template system image.C. Oracle Linux template system image.D. Red Hat Linux template system image.E. The predefined YUM repository of customized RPMs.F. Script used to configure and clean up the template.

Correct Answer: CEFSection: (none)Explanation


QUESTION 75You 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 willhave troubleshooting this issue?

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 of network 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.

Correct Answer: CDSection: (none)Explanation


QUESTION 76You have just finished successfully upgrading an Oracle VM sever from VM manager GUI. When attempting to migrate some of your VMs back to upgraded serverit does not appear in the list of available server. What is the most likely reason?


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 can migrate 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.



QUESTION 77After 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 nothinghappens. List two possible reasons for this.

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 DRS CPU 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.



QUESTION 78You 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 notappear in the list of available Oracle VM servers. What three reasons could explain this?

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.

Correct Answer: BCDSection: (none)Explanation


QUESTION 79When registering an NFS file server you are requested to enter the access host hostname or IP address. What is the function of the access host?

A. It is the server in the server pool that will perform all I/O operations on the file system.B. It is the NFS server that provide access to one or more shares.C. It is the iSCSI server that will manager one or more LUNs.D. It is the security server that will prevent unauthorized server pool members from accessing this share.E. It is the admin server for this share.



QUESTION 80You are building a new VM template to distribute application software for installing into Oracle VM environment. Which virtualization mode will deliver the bestperformance on server system that include hardware virtualization support?

A. Implementing on physical hardware virtualization using the P2V utilities.B. Hardware virtualization XEN HVM.C. Hypervisor virtualization.D. Hardware virtualization with Para-virtualized hardware drivers.E. OVM dynamic virtualization.




QUESTION 81In 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?

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 82What is the primary use of a onetime boot script include in a customer template?

A. To display any necessary copyxxxxx notice and term of use.B. To validate the template setting and software to ensure the template meets all requirements.C. To cleanup any tmp files left over in template creation.D. To assign the hostname, IP addresses, netmask and software dependent configuration setting.E. To reset the template to a first use state so that the /etc/init.d/network script can ask for the customer setting.



oracle.train4sure.1z0-590.v2019-03-09.by.leonardo€¦ · 2019-03-09 · use the same shared...

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