1Z0-540 | 10 Tips For Up to date 1Z0-540 braindumps
Q31. A low priority guest is using up more of the physical network traffic than desired. Select the two valid network QoS settings for restricting outbound network traffic?
A. [max_rate=lMb/s]
B. [rate=lMb/s@20ms]
C. [rate=250Kb/s]
D. [max_rate=unlimited]
E. [rate=250Rb/s, max rate=1Mb/s]
Answer: B,C
Q32. A customer is running an existing server farm of open source Xen servers running the same version of Xen as Oracle VM 2.2. The customer would like to manage these servers with Oracle VM.
What is the best reason that this will not be possible?
A. Oracle VM's Xen implementation uses a different disk format for virtual machines than open source Xen, so live migration of virtual machines will not work between the existing Xen implementation and Oracle VM.
B. Oracle VM employs a layer of technology on top of Xen that enables remote management through Oracle VM Manager or Oracle Enterprise Manager. The existing Xen servers are incapable of communicating in this manner.
C. Oracle VM uses a forked Xen distribution, so although the version numbers are the same, the behavior of the virtual machines at run time will be different.
D. Oracle VM uses a highly proprietary protocol format for Live Migration that enables strongencryption. Standard Xen servers will not be able to live migrate to the Oracle VM servers, or vice versa.
Answer: B
Q33. What command will show the current status of all Oracle VM Agent components?
A. service ovs status
B. xm show ovs-agent
C. service ovs-agent status
D. repos.py -1
E. xm dmesg
Answer: C
Q34. Intel 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 technologies
B. Paravirtualization
C. Hardware Virtualization
D. Hardware Partitioning
E. Operating System Partitioning
Answer: B
Explanation:
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 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.
Q35. If a guest domain is not responding, and powering off the guest through the console does not work, which xm command can be used to kill the guest immediately (equivalent to pulling the power plug)?
A. xm shutdown
B. xm reset
C. xm destroy
D. xm delete
E. xm pause
Answer: A
Q36. A 64-bit Windows XP Installation CD has been ripped to an ISO file named WinXP.iso, and has been put in the /OVS/iso_pool/ directory with user and group-readable permissions. When navigating to the Import ISO screen in the Oracle VM Manager, no ISOs are available for import.
What has gone wrong?
A. 64-bit Windows XP is not a supported guest operating system, and the Oracle VM Manager will not show unsupported guest ISO files.
B. The user has not selected the appropriate ISO Group on the Import form.
C. The ISO file should be located under a subdirectory of /OVS/iso_pool, not the /OVS/iso_pool directory itself.
D. The ISO file should be located under/OVS/seed_pool, not/OVS/iso_pool.
E. The ISO file must have world-readable permission to be read by Oracle VM.
Answer: C
Q37. During 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.
Answer: B
Q38. Which two are true of an NFS repository when used with Oracle VM?
A. NFS repositories are excellent for storing guests' root file systems.
B. NFS is a more expensive option than iSCSI or SAN fabrics.
C. OCFS2 must be used as the filesystem format for volumes exposed through NFS.
D. NFS shares mounted directly in a guest require the DM-NFS driver to be installed on the guest.
E. NFS is supported for use in RAC only when mounted from the guest (not domO).
Answer: A,B
Explanation:
First of all here you have to select two options but answer shows one. A is ok.
A performance comparison of 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.
Q39. When 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.
Answer: A,B,C
Q40. NO: 45
What 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
Answer: B