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Oracle VM 2 for x86 Essentials

Question No: 11

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

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

  2. One Xen bridge will be created for each physical NIC.

  3. All physical NICs are mapped to a single Xen bridge.

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

  5. The first physical NIC is assigned to dom0#39;s management; a Xen bridge is then created for each of the remaining cards.

Answer: B

Question No: 12

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

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

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

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

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

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

Answer: A

Question No: 13

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

  1. Use the repos.py command with the -new option, along with either a device path or an

    nfs path.

  2. Use the repos.py command with the -new option, along with the UUID assigned to the repository.

  3. Use the repos.py command with the-new option, along with the UUID assigned to the repository and a device path.

  4. Use the repos.py command with the path. -root option, along with either a device path or an nfs path.

  5. Use the repos.py command with the-root option, along with the UUID assigned to the repository.

Answer: A,E

Question No: 14

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

  1. vnclisten = #39;0.0.0.0#39;

  2. pae =1

  3. builder=’hvm’

  4. serial=’pty’

Answer: C 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 thing is 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 No: 15

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

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

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

  3. A netfront driver is used in dom0, and a netback driver is used in the guest.

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

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

Answer: C

Question No: 16

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

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

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

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

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

Answer: A

Question No: 17

When crating a repository on an iSCSI LUN, how should the LUN be formatted?

  1. The LUN should be formatted with ext3 from every participating node in the cluster.

  2. The LUN should be formatted with ext3 from a single node in the cluster.

  3. The LUN should be formatted with OCFS2 from every participating node in the cluster.

  4. The LUN should be partitioned, and then formatted with OCFS2 from every participating node in the cluster.

  5. The LUN should be formatted with OCFS2 from a single node in the cluster.

Answer: D

Question No: 18

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

  1. manage server pools

  2. manage servers

  3. manage resources

  4. manage virtual machines

  5. create users and groups

  6. import resources

Answer: E Explanation:

Oracle VM Manager can manages the server pools, resources, virtual machines and also it can import resources but it cannot create the users and groups.

Question No: 19

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?

  1. Oracle VM 2.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.

  2. The way to grow an Oracle VM 2.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.

  3. Oracle VM 2.x has a single fixed storage repository. A best practice is to configure the repository with 30%-40% headroom for growth.

  4. The way to grow an Oracle VM 2.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.

Answer: A 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 automatically add the more storage there and also you can modify the max size of the storage repository.

Question No: 20

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

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

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

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

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

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

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

Answer: A Explanation:

Do not get confused with the default mount point with the installation directory creation which is recommended by Oracle Docs and the name of that directory is /OVMCD

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