Question 1

When using the user mode network stack with qemu, TCP and UDP connections work fine but ping does not work. Why is this?

Accepted Answer

A)  The Qemu user mode network stack does not implement ICMP. 
B)  The problem is caused by incorrect routing. 
C)  The Qemu user mode network stack blocks all ICMP traffic. 
D)  The Qemu user mode network stack requires explicit permission for ping to work. 
A)  The Qemu user mode network stack does not implement ICMP. 
B)  The problem is caused by incorrect routing. 
C)  The Qemu user mode network stack blocks all ICMP traffic. 
D)  The Qemu user mode network stack requires explicit permission for ping to work. A

Question 2

Which of the following can be used as a low level device for DRBD?

Accepted Answer

A)  A LVM logical volume 
B)  A physical hard disk 
C)  A rewritable CD 
D)  A virtual tape library 
E)  A tape streamer 
A)  A LVM logical volume 
B)  A physical hard disk 
C)  A rewritable CD 
D)  A virtual tape library 
E)  A tape streamer A,B

Question 3

How does the command to add a new resource to a Pacemaker cluster using crm begin?

Accepted Answer

A)  crm manage cluster 
B)  crm configure resource 
C)  crm service add 
D)  crm configure primitive 
E)  crm resource new 
A)  crm manage cluster 
B)  crm configure resource 
C)  crm service add 
D)  crm configure primitive 
E)  crm resource new D

Question 4

Which one of the following options represents a valid declaration of a backend server with HAProxy?

Accepted Answer

A)  host server_x 10.1.0.1:80 cookie server_x 
B)  backend server_x 10.1.0.1:80 
C)  server server_x 10.1.0.1:80 check 
D)  pool server_x 10.1.0.1:80 
A)  host server_x 10.1.0.1:80 cookie server_x 
B)  backend server_x 10.1.0.1:80 
C)  server server_x 10.1.0.1:80 check 
D)  pool server_x 10.1.0.1:80

Question 5

How can data be shared between several virtual machines running on the same Linux-based host system?

Accepted Answer

A)  By mounting other VM's file systems from /dev/virt-disks/remote/. 
B)  By using a network file system or file transfer protocol. 
C)  By default, Linux-based virtualization products provide full access to the host system to all virtual machines. 
D)  By setting up a ramdisk in one virtual machine and mounting it using its UUID in the other VMs. 
E)  By attaching the same virtual hard disk to all virtual machines and activating EXT4 sharing extensions on it. 
A)  By mounting other VM's file systems from /dev/virt-disks/remote/. 
B)  By using a network file system or file transfer protocol. 
C)  By default, Linux-based virtualization products provide full access to the host system to all virtual machines. 
D)  By setting up a ramdisk in one virtual machine and mounting it using its UUID in the other VMs. 
E)  By attaching the same virtual hard disk to all virtual machines and activating EXT4 sharing extensions on it.

Question 6

Which of the following statements are true regarding a load balancer?

Accepted Answer

A)  Failover clusters are not operational without at least one dedicated load balancer. 
B)  All response packages sent from a backend server to a client must pass through the load balancer. 
C)  The load balancer is usually deployed on one of the backend servers. 
D)  Load balancers may be able to analyze traffic. 
E)  All incoming connections to the cluster services are received by the load balancer. 
A)  Failover clusters are not operational without at least one dedicated load balancer. 
B)  All response packages sent from a backend server to a client must pass through the load balancer. 
C)  The load balancer is usually deployed on one of the backend servers. 
D)  Load balancers may be able to analyze traffic. 
E)  All incoming connections to the cluster services are received by the load balancer.

Question 7

Which of the following are Pacemaker components?

Accepted Answer

A)  ccmd 
B)  crmd 
C)  fencer 
D)  pengine 
E)  keepalived 
A)  ccmd 
B)  crmd 
C)  fencer 
D)  pengine 
E)  keepalived

Question 8

When setting up a KVM virtualization host, which one of the following components is NOT required?

Accepted Answer

A)  libvirt 
B)  kvm kernel modules 
C)  bridgeutils 
D)  virsh 
E)  qemu 
A)  libvirt 
B)  kvm kernel modules 
C)  bridgeutils 
D)  virsh 
E)  qemu

Question 9

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

Accepted Answer

The answer of SIMULATION Which command was used in Xen...

Question 10

Which daemon applies the configuration and commands of libvirt to the virtualization components of the host system?

Accepted Answer

A)  vmd 
B)  virtuald 
C)  libvirtmgr 
D)  libvirt-worker 
E)  libvirtd 
A)  vmd 
B)  virtuald 
C)  libvirtmgr 
D)  libvirt-worker 
E)  libvirtd

Question 11

Which options to the xl command will deactivate a running Xen virtual machine?

Accepted Answer

A)  destroy 
B)  remove 
C)  shutdown 
D)  stop 
E)  halt 
A)  destroy 
B)  remove 
C)  shutdown 
D)  stop 
E)  halt

Question 12

When KVM is launched with the parameter -boot order=n, which of the following devices will be searched for a bootable operating system?

Accepted Answer

A)  All floppy, CDROM, and hard disk drives in that order. 
B)  No devices are searched and the user is prompted to choose the boot device. 
C)  All network interfaces attached to the VM. 
D)  All hard disks and no other devices. 
E)  No devices are searched in order to support directly booting a Linux kernel. 
A)  All floppy, CDROM, and hard disk drives in that order. 
B)  No devices are searched and the user is prompted to choose the boot device. 
C)  All network interfaces attached to the VM. 
D)  All hard disks and no other devices. 
E)  No devices are searched in order to support directly booting a Linux kernel.

Question 13

Which of the following statements are true regarding VirtualBox?

Accepted Answer

A)  It supports only Linux as a guest operating system. 
B)  It is available for Linux only. 
C)  It provides both a graphical user interface and command line tools to administer virtual machines. 
D)  It requires dedicated shared storage as it cannot store virtual machine disk images locally on block devices of the virtualization host. 
E)  It is a special kernel booted before the first regular operating system. 
A)  It supports only Linux as a guest operating system. 
B)  It is available for Linux only. 
C)  It provides both a graphical user interface and command line tools to administer virtual machines. 
D)  It requires dedicated shared storage as it cannot store virtual machine disk images locally on block devices of the virtualization host. 
E)  It is a special kernel booted before the first regular operating system.

Question 14

Where are paravirtualized device drivers installed?

Accepted Answer

A)  In the Guest OS 
B)  In the Host OS 
C)  Compiled into the hypervisor 
D)  No special drivers are required for paravirtualization. 
A)  In the Guest OS 
B)  In the Host OS 
C)  Compiled into the hypervisor 
D)  No special drivers are required for paravirtualization.

Question 15

Which of the following statements are true for full virtualization?

Accepted Answer

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. 
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.

Question 16

Which of the following statements are true regarding Xen domains?

Accepted Answer

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. 
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.

Question 17

What is XAPI?

Accepted Answer

A)  An extension of libvirt which adds live migration of virtual servers between arbitrary hypervisors. 
B)  A ReSTful API which is used by xl to communicate with the Xen hypervisor. 
C)  The communication interface between a paravirtualized Linux Kernel and the Xen hypervisor. 
D)  A high level tool chain which provides advanced management tools and interfaces for Xen. 
E)  The internal messaging system within the Xen hypervisor. 
A)  An extension of libvirt which adds live migration of virtual servers between arbitrary hypervisors. 
B)  A ReSTful API which is used by xl to communicate with the Xen hypervisor. 
C)  The communication interface between a paravirtualized Linux Kernel and the Xen hypervisor. 
D)  A high level tool chain which provides advanced management tools and interfaces for Xen. 
E)  The internal messaging system within the Xen hypervisor.

Question 18

Which of the following technologies is the most important component of IaaS clouds?

Accepted Answer

A)  Database replication 
B)  DNS delegation 
C)  Emulation 
D)  Mandatory Access Control 
E)  Virtualization 
A)  Database replication 
B)  DNS delegation 
C)  Emulation 
D)  Mandatory Access Control 
E)  Virtualization

Question 19

What is the effect of running the virsh vcpupin CLUSNODE-2 4 2 command?

Accepted Answer

A)  It sets the affinity of virtual CPU 4 of virtual machine CLUSNODE-2 to physical processor 2. 
B)  It reduces the number of virtual CPUs in CLUSNODE-2 from 4 to 2. 
C)  It increases the number of virtual CPUs in CLUSNODE-2 from 2 to 4. 
D)  It sets the affinity for all virtual CPUs of virtual machine CLUSNODE-2 to the physical processors 2 and 4. 
A)  It sets the affinity of virtual CPU 4 of virtual machine CLUSNODE-2 to physical processor 2. 
B)  It reduces the number of virtual CPUs in CLUSNODE-2 from 4 to 2. 
C)  It increases the number of virtual CPUs in CLUSNODE-2 from 2 to 4. 
D)  It sets the affinity for all virtual CPUs of virtual machine CLUSNODE-2 to the physical processors 2 and 4.

Question 20

Which of the following commands displays only the resources of the cluster information base of a pacemaker cluster?

Accepted Answer

A)  cibquery -o resources 
B)  cibadmin -R 
C)  cibadmin -Q -o resources 
D)  cibquery -L resources 
E)  cib_admin -L resources 
A)  cibquery -o resources 
B)  cibadmin -R 
C)  cibadmin -Q -o resources 
D)  cibquery -L resources 
E)  cib_admin -L resources

When using the user mode network stack with qemu, TCP and UDP connections work fine but ping does not work. Why is this?

Which of the following can be used as a low level device for DRBD?

How does the command to add a new resource to a Pacemaker cluster using crm begin?

Which one of the following options represents a valid declaration of a backend server with HAProxy?

How can data be shared between several virtual machines running on the same Linux-based host system?

Which of the following statements are true regarding a load balancer?

Which of the following are Pacemaker components?

When setting up a KVM virtualization host, which one of the following components is NOT required?

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

Which daemon applies the configuration and commands of libvirt to the virtualization components of the host system?

Which options to the xl command will deactivate a running Xen virtual machine?

When KVM is launched with the parameter -boot order=n, which of the following devices will be searched for a bootable operating system?

Which of the following statements are true regarding VirtualBox?

Where are paravirtualized device drivers installed?

Which of the following statements are true for full virtualization?

Which of the following statements are true regarding Xen domains?

What is XAPI?

Which of the following technologies is the most important component of IaaS clouds?

What is the effect of running the virsh vcpupin CLUSNODE-2 4 2 command?

Which of the following commands displays only the resources of the cluster information base of a pacemaker cluster?

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Exam 11: LPIC-3 Virtualization & High Availability

When using the user mode network stack with qemu, TCP and UDP connections work fine but ping does not work. Why is this?

Which of the following can be used as a low level device for DRBD?

How does the command to add a new resource to a Pacemaker cluster using crm begin?

Which one of the following options represents a valid declaration of a backend server with HAProxy?

How can data be shared between several virtual machines running on the same Linux-based host system?

Which of the following statements are true regarding a load balancer?

Which of the following are Pacemaker components?

When setting up a KVM virtualization host, which one of the following components is NOT required?

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

Which daemon applies the configuration and commands of libvirt to the virtualization components of the host system?

Which options to the xl command will deactivate a running Xen virtual machine?

When KVM is launched with the parameter -boot order=n, which of the following devices will be searched for a bootable operating system?

Which of the following statements are true regarding VirtualBox?

Where are paravirtualized device drivers installed?

Which of the following statements are true for full virtualization?

Which of the following statements are true regarding Xen domains?

What is XAPI?

Which of the following technologies is the most important component of IaaS clouds?

What is the effect of running the virsh vcpupin CLUSNODE-2 4 2 command?

Which of the following commands displays only the resources of the cluster information base of a pacemaker cluster?

Entry Level Linux Essentials Certificate of Achievement

Linux Essentials Certificate Exam, version 1.6

LPI Level 1 Exam 101, Junior Level Linux Certification, Part 1 of 2

LPIC-1 Exam 101

LPI Level 1 Exam 102, Junior Level Linux Certification, Part 2 of 2

LPI Level 1

LPIC-2 Exam 201

LPIC-2 Exam 202

LPIC-3 Exam 300: Mixed Environments

Security

LPIC-OT Exam 701: DevOps Tools Engineer

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