304-200 Online Practice Questions and Answers

When migrating a physical machine to a full virtualized machine, which of the following properties should be expected to change from the perspective of the guest operating system? (Choose TWO correct answers.)

A. The user accounts within the guest operating system.

B. The properties of the CPU and other hardware devices.

C. The MAC address of the network interfaces.

D. The version of the guest operating system.

E. The software and applications installed on the guest system.

Which of the following statements are true regarding Xen domains? (Choose TWO correct answers.)

A. Fully virtualized and paravirtualized domains are managed using the same tools and commands.

B. Xen domains of all types require virtualization extensions in the host system's CPU.

C. All fully virtualized domains are called 'Dom0' while all paravirtualized domains are called 'DomU'.

D. Both paravirtualized and fully virtualized domains may run on the same host system.

E. Paravirtualized domains are significantly slower than fully virtualized domains.

Which command in the KVM monitor ejects the first IDE CDROM drive? (Specify the KVM monitor command INCLUDING ALL REQUIRED PARAMETERS.)

A. eject ide1-cd0 -or- eject -f ide1-cd0

When preparing a public machine image for the provisioning of new cloud computing instances, which of the following steps should be done? (Choose TWO correct answers.)

A. Remove all default users and groups, including root and nobody.

B. Remove all configuration files from /etc/ that were not manually modified.

C. Remove all confidential data from the image.

D. Remove all remote login services (i.e. SSH) from the image.

E. Remove all private SSH keys from the image.

Which of the following are valid KVM parameters? (Choose THREE correct answers.)

A. -drive file=iscsi://user%password@fileserver/iqn.2001-04.com.example/1

B. -drive file=rsync://user%password@fileserver:/tmp/file.iso,media=cdrom,readonly

C. -drive file=ssh://user@host/tmp/file.img

D. -drive file=imap://user:password@mailserver:/INBOX/Wufnc6MjYp@mailgate

E. -drive file=http://user:password@fileserver/pub/linux.iso,media=cdrom,readonly

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

Which of the following commands lists the snapshots existing in the disk image vm1.img?

A. qemu-info snapshots vm1.img

B. qemu-img snapshot -l vm1.img

C. qemu -hda snapshot -l vm1.img -noboot -list snapshots

D. qemu-snapshots -l vm1.img

E. qemu-monitor -snapshots -hda vm1.img

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

A. The hypervisor may provide fine-grained limits to internal elements of the guest operating system such as the number of processes.

B. Full virtualization cannot pose any limits to virtual machines and always assigns the host system's resources in a first-come-first-serve manner.

C. It is up to the virtual machine to use its assigned hardware resources and create, for example, an arbitrary amount of network sockets.

D. The hypervisor provides each virtual machine with hardware of a defined capacity that limits the resources of the virtual machine.

E. All processes created within the virtual machines are transparently and equally scheduled in the host system for CPU and I/O usage.

What is true for a virtual IP address in the context of keepalived? (Choose TWO correct answers.)

A. The distinct IP addresses of all backend servers are called virtual IP addresses.

B. Every server running keepalived has exactly one virtual IP address and cannot have any additional virtual IP addresses.

C. The virtual IP address is the address to which incoming connections are made in order to reach the load balancer.

D. keepalived uses VRRP to ensure the availability of the virtual IP address.

E. Within the whole LVS cluster managed by keepalived, the virtual IP address never appears on any network interface.

Which of the following statements are true regarding OCFS2? (Choose TWO correct answers.)

A. OCFS2 is an integral part of Pacemaker and relies on Pacemaker services for functionality.

B. To avoid the need for shared storage, OCFS2 can replicate the content of its filesystems via the network.

C. When using OCFS2 with additional cluster software, OCFS2 must be integrated into the overall cluster manager to ensure consistent cluster behaviour.

D. OCFS2 can be used without any additional software as it contains its own cluster manager, O2CB.

E. In addition to filesystems, OCFS2 can handle other cluster services such as IP addresses and server daemons.