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Q21. 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:


Q22. 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. 

Answer:


Q23. 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:

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. 


Q24. 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. 

Answer: A,B 


Q25. Customers looking for pre-tested, validated architectures, with documented best practices for software, hardware, storage, and network components should consider which Oracle offering? 

A. Oracle AIA (Application Integration Architecture) 

B. Oracle Validated Configuration 

C. Oracle Support 

D. Oracle ACS (Advanced Customer Services) 

E. Oracle MetaLink 

Answer:


Q26. Describe the certification process for Oracle products on Oracle VM. 

A. With the exception of Oracle applications, all Oracle products are certified to run with Oracle VM immediately upon release. 

B. Each Oracle product is responsible for stating their certification timeframe for Oracle VM support, but in no case will that delay be greater than six months. 

C. Unless otherwise stated, all Oracle products that run on supported platforms are certified to run with Oracle VM immediately upon release. 

D. Oracle products that run on supported platforms are certified immediately upon release. Oracle products on non-supported platforms are certified on a case-by-case basis. 

Answer:


Q27. In hardware virtualized environment, which answer best describes the drivers that are used in dom0 and the guest to communicate network I/O requests? 

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

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

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

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

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

Answer:


Q28. A customer is setting up a 32-node Oracle VM server farm. What step will best help load balance the high number of I/O requests for new virtual machines and shared disks? 

A. Increase the number of Oracle VM Manager instances. 

B. Increase the number of servers with the Server Pool Master role. 

C. Increase the number of servers with the Utility Server role. 

D. Increase the number of servers with the Virtual Machine Server role. 

Answer:


Q29. 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:


Q30. 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. 

Answer:

36. As you are grouping workloads into server pools, you decide you want to use network traffic as one of your criteria. Which answer describes how Network QoS (Quality of Service) might apply? 

A. throttles (restricts) the inbound and outbound network traffic for a virtual machine vif 

B. throttles (restricts) the inbound and outbound network traffic for a physical network interface 

C. throttles (unrestricts) the inbound and outbound network traffic for a virtual machine vif 

D. throttles (unrestricts) the inbound and outbound network traffic for a physical network interface 

E. is not yet available with Oracle VM 2.2 but will be added in a subsequent release 

Answer: