Question 1

Which one of the following is NOT a required component for running an OCFS2 filesystem resource in a Pacemaker cluster?

Accepted Answer

A)  A clone resource for the OCFS2 file system. 
B)  A shared storage device accessible by all nodes using the OCFS2 filesystem. 
C)  The distributed lock manager (DLM). 
D)  The cluster logical volume manager (CLVM). 
E)  The O2CB service. 
A)  A clone resource for the OCFS2 file system. 
B)  A shared storage device accessible by all nodes using the OCFS2 filesystem. 
C)  The distributed lock manager (DLM). 
D)  The cluster logical volume manager (CLVM). 
E)  The O2CB service.

Question 2

When using HAProxy to load balance requests over a set of web servers, what directive is needed in the HAProxy configuration in order to be able to log, on the backend web servers, the IP address of the client making a request?

Accepted Answer

A)  option reverseproxy 
B)  option forwardfor 
C)  option clientlog 
D)  option exposeclient 
A)  option reverseproxy 
B)  option forwardfor 
C)  option clientlog 
D)  option exposeclient

Question 3

SIMULATION In the command: pcs constraint order VHost1IPv4 ____ HTTPD which missing word is required in order to ensure that the service HTTPD is always started after the service VHost1IPv4?

Accepted Answer

The answer of SIMULATION In the command: pcs constraint order...

Question 4

Which of the following data should be copied to the virtual machine when migrating a physical machine to a virtual machine?

Accepted Answer

A)  The block device buffers 
B)  The CPU flags 
C)  The file systems or their content 
D)  The CPU register's content 
E)  The memory 
A)  The block device buffers 
B)  The CPU flags 
C)  The file systems or their content 
D)  The CPU register's content 
E)  The memory

Question 5

What action does the virsh restore command perform?

Accepted Answer

A)  It restores a virtual machine that was stopped by a kernel panic. 
B)  It restores a virtual machine from a state file. 
C)  It reverts a virtual machine, including its storage devices, to a previously saved state. 
D)  It wakes up a virtual machine that was hibernated by the operating system running inside the virtual machine. 
A)  It restores a virtual machine that was stopped by a kernel panic. 
B)  It restores a virtual machine from a state file. 
C)  It reverts a virtual machine, including its storage devices, to a previously saved state. 
D)  It wakes up a virtual machine that was hibernated by the operating system running inside the virtual machine.

Question 6

Which of the following statements are true regarding the Red Hat Enterprise Linux High Availability Add-On?

Accepted Answer

A)  It offers support for load balanced clusters only and cannot manage failover clusters. 
B)  It does not include any storage components. 
C)  It can be managed using the regular Pacemaker commands like pcs. 
D)  It uses its own messaging subsystem, RHMQ, for cluster communication. 
E)  It is built on top of several high availability components that are also available in other Linux distributions. 
A)  It offers support for load balanced clusters only and cannot manage failover clusters. 
B)  It does not include any storage components. 
C)  It can be managed using the regular Pacemaker commands like pcs. 
D)  It uses its own messaging subsystem, RHMQ, for cluster communication. 
E)  It is built on top of several high availability components that are also available in other Linux distributions.

Question 7

What is oVirt?

Accepted Answer

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. 
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.

Question 8

SIMULATION What is the name of the kernel module that is required to be loaded in order to use KVM on an Intel CPU architecture? (Specify ONLY the module name without any path information and with or without the module suffix.)

Accepted Answer

kvm-intel.

Question 9

How can the state of the backing storage disks of a DRBD device be checked?

Accepted Answer

A)  cat /proc/drdb/status 
B)  cat /proc/drdb 
C)  drbdadm dstate all 
D)  drbdadm diskstatus all 
E)  drbdadm state --disk all 
A)  cat /proc/drdb/status 
B)  cat /proc/drdb 
C)  drbdadm dstate all 
D)  drbdadm diskstatus all 
E)  drbdadm state --disk all

Question 10

Which of the following statements are true regarding the determination of the capacity of a high availability cluster?

Accepted Answer

A)  The overall capacity of all components in the cluster doesn't have to be larger than the resources needed in a regular setup. 
B)  The number of nodes in a cluster has no effect on the availability as long as the sum of the available computing resources is equal. 
C)  Failover clusters can be used to scale a single service beyond the capacity of a single cluster node. 
D)  In regular cluster operation, not all resources are used. 
E)  In case of the failure of any component, enough resources must remain to provide all cluster services. 
A)  The overall capacity of all components in the cluster doesn't have to be larger than the resources needed in a regular setup. 
B)  The number of nodes in a cluster has no effect on the availability as long as the sum of the available computing resources is equal. 
C)  Failover clusters can be used to scale a single service beyond the capacity of a single cluster node. 
D)  In regular cluster operation, not all resources are used. 
E)  In case of the failure of any component, enough resources must remain to provide all cluster services.

Question 11

Within the graphical output of a KVM virtual machine, which key sequence switches to the KVM monitor of the VM?

Accepted Answer

A)  Ctrl-Alt-1 
B)  Ctrl-Alt-0 
C)  Ctrl-Alt-4 
D)  Ctrl-Alt-2 
E)  Ctrl-Alt-3 
A)  Ctrl-Alt-1 
B)  Ctrl-Alt-0 
C)  Ctrl-Alt-4 
D)  Ctrl-Alt-2 
E)  Ctrl-Alt-3

Question 12

What is the purpose of fencing in a high availability cluster?

Accepted Answer

A)  Prevent failed nodes from interfering with the remaining intact part of the cluster. 
B)  Ensure a consistent assignment of all network connections from a client to the same cluster server. 
C)  Define constraints on which services may run on the same cluster node. 
D)  Enforce storage quota and other resource limitations for each service provided by the cluster. 
E)  Provide multi-tenancy cluster configuration for cloud computing. 
A)  Prevent failed nodes from interfering with the remaining intact part of the cluster. 
B)  Ensure a consistent assignment of all network connections from a client to the same cluster server. 
C)  Define constraints on which services may run on the same cluster node. 
D)  Enforce storage quota and other resource limitations for each service provided by the cluster. 
E)  Provide multi-tenancy cluster configuration for cloud computing.

Question 13

Which of the following statements are true about container-based virtualization?

Accepted Answer

A)  All containers run within the operating system kernel of the host system. 
B)  Different containers may use different distributions of the same operating system. 
C)  Each container runs its own operating system kernel. 
D)  Container-based virtualization relies on hardware support from the host systems CPU. 
E)  Linux does not support container-based virtualization because of missing kernel APIs. 
A)  All containers run within the operating system kernel of the host system. 
B)  Different containers may use different distributions of the same operating system. 
C)  Each container runs its own operating system kernel. 
D)  Container-based virtualization relies on hardware support from the host systems CPU. 
E)  Linux does not support container-based virtualization because of missing kernel APIs.

Question 14

Which of the following statements are true regarding IaaS computing instances?

Accepted Answer

A)  Creation of new instances can be automated by using scripts or APIs and service interfaces. 
B)  The root file system of a computing instance is always persistent and can be accessed after the instance is destroyed. 
C)  Each and every user of an IaaS cloud has exactly one computing instance. 
D)  Once created, computing instances are seldom deleted in order to ensure the accessibility of the instance's data. 
E)  Instances may be created when needed and destroyed when they become obsolete. 
A)  Creation of new instances can be automated by using scripts or APIs and service interfaces. 
B)  The root file system of a computing instance is always persistent and can be accessed after the instance is destroyed. 
C)  Each and every user of an IaaS cloud has exactly one computing instance. 
D)  Once created, computing instances are seldom deleted in order to ensure the accessibility of the instance's data. 
E)  Instances may be created when needed and destroyed when they become obsolete.

Question 15

Which CPU flag indicates the hardware virtualization capability on an AMD CPU?

Accepted Answer

A)  SVM 
B)  VIRT 
C)  VMX 
D)  PVM 
E)  HVM 
A)  SVM 
B)  VIRT 
C)  VMX 
D)  PVM 
E)  HVM

Question 16

Which of the following components are parts of XAPI?

Accepted Answer

A)  The XADB configuration management database. 
B)  The XAPI virtual file system available at /xen. 
C)  The xm command. 
D)  The xe command. 
E)  The xapi daemon. 
A)  The XADB configuration management database. 
B)  The XAPI virtual file system available at /xen. 
C)  The xm command. 
D)  The xe command. 
E)  The xapi daemon.

Question 17

Which of the following Messaging Layers are supported by Pacemaker?

Accepted Answer

A)  Heartbeat 
B)  OpenAIS 
C)  DRBD 
D)  SCMP 
E)  Slurm 
A)  Heartbeat 
B)  OpenAIS 
C)  DRBD 
D)  SCMP 
E)  Slurm

Question 18

What is the name and path of the configuration file for the O2CB cluster that coordinates the nodes using OCFS2 filesystems?

Accepted Answer

A)  /etc/ocfs2/cluster.conf 
B)  /etc/ocfs/cluster.conf 
C)  /etc/ocfs2.conf 
D)  /etc/cluster.conf 
A)  /etc/ocfs2/cluster.conf 
B)  /etc/ocfs/cluster.conf 
C)  /etc/ocfs2.conf 
D)  /etc/cluster.conf

Question 19

Which of the following statements are true regarding emulation?

Accepted Answer

A)  Emulation can only provide distinct hardware components but no complete virtual machines. 
B)  Emulation requires changes to the guest operating system. 
C)  Emulation reimplements a whole computing system in software. 
D)  Emulation allows operating systems to be run on foreign architectures. 
E)  Emulation is one of the most resource efficient virtualization techniques. 
A)  Emulation can only provide distinct hardware components but no complete virtual machines. 
B)  Emulation requires changes to the guest operating system. 
C)  Emulation reimplements a whole computing system in software. 
D)  Emulation allows operating systems to be run on foreign architectures. 
E)  Emulation is one of the most resource efficient virtualization techniques.

Question 20

Which statement is true regarding the Linux kernel module that must be loaded in order to use KVM?

Accepted Answer

A)  It must be loaded into the kernel of each virtual machine to provide paravirtualization which is required by KVM. 
B)  It must be loaded into the kernel of the host system in order to use the virtualization extensions of the host system's CPU. 
C)  It must be loaded into the kernel of the host system only if the console of a virtual machine will be connected to a physical console of the host system. 
D)  It must be loaded into the kernel of each virtual machine that will access files and directories from the host system's file system. 
E)  It must be loaded into the kernel of the first virtual machine as it interacts with the KVM bare metal hypervisor and is required to trigger the start of additional virtual machines. 
A)  It must be loaded into the kernel of each virtual machine to provide paravirtualization which is required by KVM. 
B)  It must be loaded into the kernel of the host system in order to use the virtualization extensions of the host system's CPU. 
C)  It must be loaded into the kernel of the host system only if the console of a virtual machine will be connected to a physical console of the host system. 
D)  It must be loaded into the kernel of each virtual machine that will access files and directories from the host system's file system. 
E)  It must be loaded into the kernel of the first virtual machine as it interacts with the KVM bare metal hypervisor and is required to trigger the start of additional virtual machines.

Which one of the following is NOT a required component for running an OCFS2 filesystem resource in a Pacemaker cluster?

When using HAProxy to load balance requests over a set of web servers, what directive is needed in the HAProxy configuration in order to be able to log, on the backend web servers, the IP address of the client making a request?

SIMULATION In the command: pcs constraint order VHost1IPv4 ____ HTTPD which missing word is required in order to ensure that the service HTTPD is always started after the service VHost1IPv4?

Which of the following data should be copied to the virtual machine when migrating a physical machine to a virtual machine?

What action does the virsh restore command perform?

Which of the following statements are true regarding the Red Hat Enterprise Linux High Availability Add-On?

What is oVirt?

SIMULATION What is the name of the kernel module that is required to be loaded in order to use KVM on an Intel CPU architecture? (Specify ONLY the module name without any path information and with or without the module suffix.)

How can the state of the backing storage disks of a DRBD device be checked?

Which of the following statements are true regarding the determination of the capacity of a high availability cluster?

Within the graphical output of a KVM virtual machine, which key sequence switches to the KVM monitor of the VM?

What is the purpose of fencing in a high availability cluster?

Which of the following statements are true about container-based virtualization?

Which of the following statements are true regarding IaaS computing instances?

Which CPU flag indicates the hardware virtualization capability on an AMD CPU?

Which of the following components are parts of XAPI?

Which of the following Messaging Layers are supported by Pacemaker?

What is the name and path of the configuration file for the O2CB cluster that coordinates the nodes using OCFS2 filesystems?

Which of the following statements are true regarding emulation?

Which statement is true regarding the Linux kernel module that must be loaded in order to use KVM?

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Exam 11: LPIC-3 Virtualization & High Availability

Which one of the following is NOT a required component for running an OCFS2 filesystem resource in a Pacemaker cluster?

When using HAProxy to load balance requests over a set of web servers, what directive is needed in the HAProxy configuration in order to be able to log, on the backend web servers, the IP address of the client making a request?

SIMULATION In the command: pcs constraint order VHost1IPv4 ____ HTTPD which missing word is required in order to ensure that the service HTTPD is always started after the service VHost1IPv4?

Which of the following data should be copied to the virtual machine when migrating a physical machine to a virtual machine?

What action does the virsh restore command perform?

Which of the following statements are true regarding the Red Hat Enterprise Linux High Availability Add-On?

What is oVirt?

SIMULATION What is the name of the kernel module that is required to be loaded in order to use KVM on an Intel CPU architecture? (Specify ONLY the module name without any path information and with or without the module suffix.)

How can the state of the backing storage disks of a DRBD device be checked?

Which of the following statements are true regarding the determination of the capacity of a high availability cluster?

Within the graphical output of a KVM virtual machine, which key sequence switches to the KVM monitor of the VM?

What is the purpose of fencing in a high availability cluster?

Which of the following statements are true about container-based virtualization?

Which of the following statements are true regarding IaaS computing instances?

Which CPU flag indicates the hardware virtualization capability on an AMD CPU?

Which of the following components are parts of XAPI?

Which of the following Messaging Layers are supported by Pacemaker?

What is the name and path of the configuration file for the O2CB cluster that coordinates the nodes using OCFS2 filesystems?

Which of the following statements are true regarding emulation?

Which statement is true regarding the Linux kernel module that must be loaded in order to use KVM?

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

Filters