1Z0-590 Online Practice Questions and Answers

Networking is not working for several guests on a particular host. Which two commands can help troubleshoot the networking?

A. xm list -1 will show all of the network interfaces for all of the virtual machines, which can be used to see which bridge is having problems.

B. config_network.py -l will show which network interfaces are in use, and which are having problems.

C. brctl show will show the status of each bridge, and which VIFs are connected to it. This canthen be used to determine which bridge is having problems.

D. System-config-network will list the virtual interfaces, which can be inspected to see which are having problems.

E. ifconfig -a will show a list of all network interfaces and their current status, which will help determine which bridge is having problems.

A 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 it falls 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.

What command(s) will create a new 10 GB virtual disk named Apps, and attach it to a virtual machine named Test?

A. sd new -d 10240 -n Apps vm sd attach -n Test -d Apps

B. sd new -d 10240 -n Apps sd reg -n Apps vm sd attach -n Test -d Apps

C. vm disk add -n Test -d Apps -S 10240

D. vm sd attach -n Test -d Apps -S 10240

E. vm disk add -n Test -d Apps -S 10240 vm sd attach -n Test -d Apps

A 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.

How 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 a xenbrX = [type=netfront] setting.

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

C. The vm.cfg file will have a vif = [type=netfront] setting.

D. The vm.cfg file will have a xenbrX ttype=pvfront] setting.

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

After 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).

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

What 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.

A 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 user interface 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.

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

What three artifacts are created as a result of running the JeOS tool?

A. a System.img file representing the operating system

B. optional image files as specified in the command

C. a README file with product name, version number and build timestamp

D. a vm.cfg file pointing to the created images, along with specified memory and CPU information

E. a tar.gz file with all of the images, README and vm.cfg files compressed

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.

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

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).

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

A. VLAN

B. Port authentication

C. Spanning Tree

D. Link Aggregation

E. Dedicated link