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Oracle 1z0-590 Exam Dumps


Vendor Name: Oracle
Certification Name: Oracle VM
Exam Name: Oracle VM 3 for x86 Essentials

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Total Questions Answers: 141
Last Updated: 16-Apr-2024
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Oracle 1z0-590 Exam Questions


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1z0-590 Exam Sample Questions:



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

 

Oracle VM uses the same DLM (distributed lock manager) for NFS as it does for OCFS2
partitions.

 

The standard NFS drivers are sufficient to properly lock files in an NFS repository.

 

Oracle VM ships with the IO-EMU drivers, which provide proper locking for files on an
NFS repository.

 

Oracle VM ships with a DM-NFS server, which runs on the master pool server and
handles distributed file locking for an NFS repository.


Oracle VM uses the same DLM (distributed lock manager) for NFS as it does for OCFS2
partitions.





Which two are true of an NFS repository when used with Oracle VM?

 

NFS repositories are excellent for storing guests' root file systems.

 

NFS is a more expensive option than iSCSI or SAN fabrics.

 

OCFS2 must be used as the filesystem format for volumes exposed through NFS.

 

NFS shares mounted directly in a guest require the DM-NFS driver to be installed on the
guest.


NFS repositories are excellent for storing guests' root file systems.


NFS is a more expensive option than iSCSI or SAN fabrics.


First of all here you have to select two options but answer shows one. A is ok.
A performance comparisonof NFS and iSCSI for IP-Networked Storage showed that iSCSI
is faster than NFS because iSCSI caches and updates meta-data asynchronously and
transfers blocks rather than files. So the options B is right




On your Oracle VM server which command would you use to list all SAN LUNs with
redundant paths along with their policies?

 

df –h

 

dmsetup list

 

multipath –ll

 

services devmapd status

 

mdadm –Q


multipath –ll





Intel and AMD are adding functionality to their microprocessors to improve performance of
virtualized environments.
Which type of virtualization MOST benefits from these technologies?

 

Emulation-based technologies

 

Paravirtualization

 

Hardware Virtualization

 

Hardware Partitioning

 

Operating System Partitioning


Paravirtualization


Paravirtualized (PVM) --A software interface similar but not identical to the underlying
hardware is presented to the guest operating system. Paravirtualization provides hooks for
guest instructions so that complicated taskscan 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.




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

 

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

 

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

 

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

 

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

 

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


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



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