1Z0-540 | The Secret of Oracle 1Z0-540 exam
Q41. A customer wants to use hard partitioning with Oracle VM to restrict the number of cores that can be used by a virtual machine to four cores.
Which method will best accomplish that goal?
A. In Oracle VM Manager, set the maximum number of CPUs to 4.
B. Use the xm vcpu-pin command on the domain once it is up and running, using 4 for the CPUs parameter.
C. Modify the cpus line in vm.cfg to set the cpus to 0-3.
D. Use the xm vcpu-set command before the domain is up and running, using 4 for the CPUs parameter.
E. Modify the vcpus line in vm.cfg to read: vcpus=4.
Answer: E
Q42. In hardware virtualized environment, which answer best describes the drivers that are used in dom0 and the guest to communicate block I/O requests?
A. QEMU emulation is used in dom0, and a blkfront 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 blkfront driver is used in dom0, and a blkback 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: A
Q43. 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
Answer: C
Q44. What is the correct sequence for importing a P2V image?
A. 1. Insert Oracle VM Manager disk into server to be converted.
2.
Boot server and type linux p2v at the boot prompt.
3.
Configure settings for virtual machine import.
4.
In Oracle VM Manager, go to the Virtual Machine Images page and click on Import.5. Enter information on the virtual machine, then give the IP address of the server to be imported
B. 1. Insert Oracle VM Manager disk into server to be converted.
2.
Boot server and type linux p2v at the boot prompt.
3.
Configure settings for virtual machine import.
4.
Wait for the conversion to finish, then go to the Oracle VM Manager.
5.
Enter information on the virtual machine, then give the IP address of the server to be imported.
C. 1. Insert Oracle VM Server disk into server to be converted.
2.
Boot server and type linux p2v at the boot prompt.
3.
Configure settings for virtual machine import.
4.
In Oracle VM Manager, go to the Virtual Machine Images page and click on Import.
5.
Enter information on the virtual machine, then give the IP address of the server to be imported.
D. 1. Insert Oracle VM Server disk into server to be converted.
2.
Boot server and type linux p2v at the boot prompt.
3.
Configure settings for virtual machine import.
4.
Wait for the conversion to finish, then open a browser to the IP address of the server being converted.
5.
On the page presented, select the server pool to be targeted.
Answer: C
Q45. 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.
Answer: A
Q46. 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.
Answer: C
Q47. 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: B
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: A