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1Z0-590 Oracle VM 3.0 for x86 Essentials

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Oracle · 1Z0-590

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Question 1

Multiple choice

What 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.

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Correct answersA, E

Question 2

Multiple choice

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.

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Correct answersA, E

Question 3

Single choice

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

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Correct answerC

Question 4

Multiple choice

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

A
Virtual Disk N
B
Virtual Disk Size
C
Hard Drive Type
D
QoS Enabled
E
Priority Class

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Correct answersC, D, E

Question 5

Single choice

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

A
A blkback driver is used in dom0, and a blkfront driver is used in the guest.
B
A native device driver is used in dom0, and a blkback driver is used in the guest.
C
A blkfront driver is used in dom0, and a native device driver is used in the guest.
D
A blkfront 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.

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Correct answerA

Question 6

Single choice

In an emulated/translated environment with ten guests, each operating at lOOOHz clock rate, how many interrupts will be created per second?

A
1
B
100
C
1,000
D
10,000
E
100,000

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Correct answerC

Question 7

Single choice

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?

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.

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Correct answerC

Question 8

Single choice

When 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.

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Correct answerA

Question 9

Single choice

When 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 Mode
B
Server Pool Virtual IP
C
Live Migration
D
02CB service
E
OCFS service

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Correct answerC

Question 10

Multiple choice

There is an issue booting into a virtual machine. The log files show that there is an issue during the Linux boot process of the guest.

What two methods will best help determine the problem?

A
Use xm console to attach to the guest while it is booting and look for the specific error.
B
Run xm dmesg to see hardware errors in the guest.
C
Run xm info to see the list of devices being attached to the virtual machine.
D
xm block-attach the disk to another virtual machine to inspect the file system and check module loading issues.

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Correct answersA, B

Question 11

Single choice

A 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. There are 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 the customer 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.

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Correct answerA

Question 12

Single choice

A 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 for testing 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.

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Correct answerC

Question 13

Single choice

A 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.

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Correct answerA

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2	Multiple choice	4

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Oracle VM 3.0 for x86 Essentials

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