304-200 Online Practice Questions and Answers

Which of the following directives is used in the configuration file of a Xen guest domain in order to define network interfaces?

A. vif

B. eth

C. vnet

D. vbr

E. net

When used with KVM, which of the following block device image formats support snapshots?

A. qcow

B. dmg

C. qed

D. qcow2

E. raw

Which of the following commands provides a detailed list of all image files contained in the libvirt storage pool vol1?

A. virsh list --volumes --pool vol1 --details

B. virsh vol-details vol1

C. virsh --show-pool vol1 --details

D. virsh vol-list vol1 --details

E. virsh volumes --source vol1 璬etails

Which of the following statements are true for full virtualization? (Choose TWO correct answers.)

A. Full virtualization does not require changes to the guest operating systems.

B. Full virtualization has no performance impact compared to a non-virtualized bare-metal installation on the same machine.

C. Full virtualization has a severe performance impact and should not be used in production environments.

D. Full virtualization may be supported by special CPU extensions that provide better performance.

E. Full virtualization always requires additional software components and cannot be done using Linux only.

Which of the following is true regarding the CPU of a KVM virtual machine? (Choose TWO correct answers.)

A. Each KVM virtual machine can only have one CPU with one core.

B. KVM virtual machines support multiple virtual CPUs in order to run SMP systems.

C. The CPU architecture of a KVM virtual machine is independent of the host system's architecture.

D. For each KVM virtual machine one dedicated physical CPU core must be reserved.

E. KVM uses the concept of virtual CPUs to map the virtual machines to physical CPUs.

Which command was used in Xen 3.x as a predecessor of the xl command? (Specify ONLY the command without any path or parameters.)

A. xm

When using direct Linux booting to start Linux within a KVM virtual machine, which KVM parameter is used to specify parameters for the Linux Kernel? (Specify ONLY the option name without any values or parameters.)

A. append -or- -append

What is oVirt?

A. An extension to the Linux Kernel used to provide container virtualization similar to LXC and OpenVZ.

B. A library that provides access to several different virtualization technologies in a common manner.

C. A comprehensive management infrastructure for Linux-based virtualization.

D. An approach used to eliminate the need for virtualization called Zero-Virt.

E. A Linux-based hypervisor similar to KVM and Xen.

Which of the following sections are found in the Pacemaker configuration XML file?

A. and

B. and

C. and

D. and

E. and

Which of the following are valid load balancing algorithms for HAProxy? (Choose TWO correct answers.)

A. persistent

B. weightedrr

C. source

D. leastconn

E. destination