304-150 Online Practice Questions and Answers

What actions are permitted by a hypervisor? (Select THREE correct answers)

A. A hypervisor may install a Guest OS.

B. A hypervisor may perform privileged tasks on behalf of the Guest OS.

C. A hypervisor may shape traffic on the bridged network devices for the Guest OS.

D. A hypervisor may directly manipulate memory.

E. A hypervisor may execute privileged CPU instructions.

Which one of the following is NOT the name of a tool that can be used to manage virtual machines in a KVM environment?

A. virtviewer

B. virtclone

C. virtinstall

D. virtimg

E. virtmanager

An administrator needs to shutdown a Xen virtual machine immediately, otherwise, the virtual machine risks corrupting the file system. Which of the following methods could be used for an immediate shutdown?

A. Use xm shutdown force

B. Use xm destroy

C. Use xm poweroff

D. Shut down the xend process

E. Use xm stop

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

A. persistent

B. weightedrr

C. source

D. leastconn

E. destination

What is the name of the heartbeat configuration file?

A. ha.cf

B. heartbeat.cf

C. heartbeat.conf

D. hb.conf

Which of the following configuration settings specify that keepalived is to use the round robin algorithm?

A. lb_mode rr

B. lb_algo rr

C. loadbalancer_mode=rr

D. algorithm=round robin

E. lb_algorithm=rr

What action does the virsh save command perform?

A. It stops a VM and saves the data from memory to a file.

B. It saves the a running domain configuration to file.

C. It saves a copy of a running VM.

D. It rescues a VM from being fenced.

Which one of the following is NOT a required component for running an OCFS2 file system resource in a Pacemaker environment?

A. A clone resource for the OCFS2 file system

B. quorum

C. dlm

D. clvm

E. o2cb

In keepalived, what keyword starts the configuration section for one of the failover servers?

A. lvs_server

B. virtual_server

C. vrrp_instance

D. vrrp_sync_group

In virtualization, why is using a 64bit host operating system desirable compared to a 32bit host?

A. 64bit hosts provide more data throughput to guests than 32bit hosts.

B. Virtualization isn't stable with 32bit based operating systems.

C. 64bit operating systems get faster access to hardware resources such as disk drives.

D. There is a larger memory address space which allows for potentially more and larger virtualized guests.