Question 1

Which of the following technologies are parts of the Red Hat Enterprise Linux High Availability Add-On?

Accepted Answer

A)  DRBD 
B)  LVS 
C)  cLVM 
D)  Pacemaker 
E)  OCFS2 
A)  DRBD 
B)  LVS 
C)  cLVM 
D)  Pacemaker 
E)  OCFS2

Question 2

SIMULATION Which virsh subcommand is used to change the CD-ROM image file attached to a virtual machine? (Specify ONLY the subcommand without any parameters.)

Accepted Answer

change-media, virsh

Question 3

SIMULATION In the command: crm configure ____ http-after-ipv4 Mandatory: VHost1IPv4 HTTPD which missing word is required in order to ensure that the service HTTPD is always started after the service VHost1IP?

Accepted Answer

The answer of SIMULATION In the command: crm configure ____...

Question 4

SIMULATION In the command vzctl ____ 105 /usr/bin/apt-get install wget which subcommand of vzctl is missing in order to install wget in the OpenVZ container 105?

Accepted Answer

The answer of SIMULATION In the command vzctl ____ 105...

Question 5

Which of the following are tools or services that manage a Linux Virtual Server (LVS) setup?

Accepted Answer

A)  keepalived 
B)  ldirectord 
C)  lvproxy 
D)  roundrobind 
E)  vserverd 
A)  keepalived 
B)  ldirectord 
C)  lvproxy 
D)  roundrobind 
E)  vserverd

Question 6

In case one service in a Pacemaker cluster depends on another service running on the same node, which score should be assigned to the constraint describing that dependency?

Accepted Answer

A)  -1 
B)  0 
C)  1 
D)  FORCE 
E)  INFINITY 
A)  -1 
B)  0 
C)  1 
D)  FORCE 
E)  INFINITY

Question 7

Which of the following commands can be used to safely test and preview Pacemaker configuration changes?

Accepted Answer

A)  crm_test 
B)  crm_simulate 
C)  crm_dryrun 
D)  crm_lab 
E)  crm_shadow 
A)  crm_test 
B)  crm_simulate 
C)  crm_dryrun 
D)  crm_lab 
E)  crm_shadow

Question 8

Which actions should be taken in a load balanced cluster in order to protect the load balancer against outages?

Accepted Answer

A)  Load balancers cannot be protected against outages which is why they should always be built on dedicated hardware. 
B)  No actions are necessary as a load balancer cannot become a single point of failure. 
C)  Two or more load balancers should be deployed as a cascade that passes packets from one to the other. 
D)  Two load balancers should be deployed as a failover cluster. 
E)  Load balancers are used for performance and scalability reasons only and cannot be used to archive high availability clusters. 
A)  Load balancers cannot be protected against outages which is why they should always be built on dedicated hardware. 
B)  No actions are necessary as a load balancer cannot become a single point of failure. 
C)  Two or more load balancers should be deployed as a cascade that passes packets from one to the other. 
D)  Two load balancers should be deployed as a failover cluster. 
E)  Load balancers are used for performance and scalability reasons only and cannot be used to archive high availability clusters.

Question 9

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

Accepted Answer

A)  vif 
B)  eth 
C)  vnet 
D)  vbr 
E)  net 
A)  vif 
B)  eth 
C)  vnet 
D)  vbr 
E)  net

Question 10

What is the task of the Cluster Logical Volume Manager, CLVM?

Accepted Answer

A)  It segments the cluster nodes into several logical groups that are always fenced together. 
B)  It balances incoming TCP connections to a logical service to several backend nodes. 
C)  It makes logical volumes on shared storage available to all cluster nodes. 
D)  It allows several nodes to share file system locks in order to access the same files simultaneously. 
A)  It segments the cluster nodes into several logical groups that are always fenced together. 
B)  It balances incoming TCP connections to a logical service to several backend nodes. 
C)  It makes logical volumes on shared storage available to all cluster nodes. 
D)  It allows several nodes to share file system locks in order to access the same files simultaneously.

Question 11

Which of the following statements are true regarding the handling of a hardware error in a high availability cluster?

Accepted Answer

A)  High availability provides automatic recovery from software errors only and cannot mitigate hardware issues. 
B)  After the cluster deals with an error, no manual actions are required to bring the cluster back to normal operation. 
C)  Erroneous components are physically turned off as they are in an undefined state. 
D)  Services are restarted on or redirected to other cluster nodes. 
E)  The cluster management components monitor the health of all cluster components. 
A)  High availability provides automatic recovery from software errors only and cannot mitigate hardware issues. 
B)  After the cluster deals with an error, no manual actions are required to bring the cluster back to normal operation. 
C)  Erroneous components are physically turned off as they are in an undefined state. 
D)  Services are restarted on or redirected to other cluster nodes. 
E)  The cluster management components monitor the health of all cluster components.

Question 12

How does high availability clustering relate to periodic storage backup?

Accepted Answer

A)  Regular backups become generally unnecessary as any data loss or corruption is automatically recovered by the high availability cluster. 
B)  Regular backups remain vital as they allow restoration of data that was accidentally deleted or corrupted. 
C)  Regular backups may be reduced to the cluster configuration and cluster state data as this information is sufficient to recover any state of the cluster, including data, at any time. 
D)  Backups should be located only on the local storage of the cluster and should not be backed up in order to prevent bandwidth congestion. 
E)  Backup procedures may have to be adapted to the cluster to ensure complete and recoverable backups. 
A)  Regular backups become generally unnecessary as any data loss or corruption is automatically recovered by the high availability cluster. 
B)  Regular backups remain vital as they allow restoration of data that was accidentally deleted or corrupted. 
C)  Regular backups may be reduced to the cluster configuration and cluster state data as this information is sufficient to recover any state of the cluster, including data, at any time. 
D)  Backups should be located only on the local storage of the cluster and should not be backed up in order to prevent bandwidth congestion. 
E)  Backup procedures may have to be adapted to the cluster to ensure complete and recoverable backups.

Question 13

Which of the following statements is true regarding the quorum in a two node Pacemaker cluster?

Accepted Answer

A)  Clusters with one or two nodes cannot have a quorum and require no quorum configuration. 
B)  In a two node cluster, quorum can be determined and handled just as in a cluster with a higher number of nodes. 
C)  In a two node cluster the quorum is always held by the node that first started the cluster software. 
D)  The default quorum policy in a two node cluster must be set to ignore in order to configure a working cluster. 
A)  Clusters with one or two nodes cannot have a quorum and require no quorum configuration. 
B)  In a two node cluster, quorum can be determined and handled just as in a cluster with a higher number of nodes. 
C)  In a two node cluster the quorum is always held by the node that first started the cluster software. 
D)  The default quorum policy in a two node cluster must be set to ignore in order to configure a working cluster.

Question 14

Which of the following commands are needed to establish a private network between two (or more) KVM virtual machines that is not visible to other KVM instances on the same KVM host?

Accepted Answer

A)  ifconfig 
B)  brctl 
C)  tunctl 
D)  ipconfig 
E)  ebtables 
A)  ifconfig 
B)  brctl 
C)  tunctl 
D)  ipconfig 
E)  ebtables

Question 15

Which of the following statements are true regarding resource management for full virtualization?

Accepted Answer

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. 
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.

Question 16

Which of the following tasks are parts of a hypervisor's responsibility?

Accepted Answer

A)  Create filesystems during the installation of new VM guest operating systems. 
B)  Provide host-wide unique PIDs to the processes running inside the VMs in order to ease interprocess communication between virtual machines. 
C)  Map the resources of virtual machines to the resources of the host system. 
D)  Ensure isolation and eliminate any interference between virtual machines. 
E)  Manage authentication to network services running inside a virtual machine. 
A)  Create filesystems during the installation of new VM guest operating systems. 
B)  Provide host-wide unique PIDs to the processes running inside the VMs in order to ease interprocess communication between virtual machines. 
C)  Map the resources of virtual machines to the resources of the host system. 
D)  Ensure isolation and eliminate any interference between virtual machines. 
E)  Manage authentication to network services running inside a virtual machine.

Question 17

SIMULATION Which subcommand of virsh opens the XML configuration of a virtual network in an editor in order to make changes to that configuration? (Specify ONLY the subcommand without any parameters.)

Accepted Answer

virsh net-

Question 18

Which of the following tasks is performed by Vagrant?

Accepted Answer

A)  It migrates virtual machines automatically between host systems to distribute the load of all virtual machines equally to all hosts involved. 
B)  It automates the installation of a virtual machine according to a configuration file describing the desired VM. 
C)  It monitors the functionality of a virtual machine and restarts the VM in case of failure. 
D)  It is a hypervisor optimized for the usage in embedded systems based on the ARM CPU architecture. 
E)  It is a programming interface used to create reports from collected performance and resource usage data of a libvirt-based virtualization infrastructure. 
A)  It migrates virtual machines automatically between host systems to distribute the load of all virtual machines equally to all hosts involved. 
B)  It automates the installation of a virtual machine according to a configuration file describing the desired VM. 
C)  It monitors the functionality of a virtual machine and restarts the VM in case of failure. 
D)  It is a hypervisor optimized for the usage in embedded systems based on the ARM CPU architecture. 
E)  It is a programming interface used to create reports from collected performance and resource usage data of a libvirt-based virtualization infrastructure.

Question 19

SIMULATION What is the name of the global configuration file for the xl tool stack? (Specify the file name only without any path.)

Accepted Answer

/etc/xen/x

Question 20

What is libvirt?

Accepted Answer

A)  An identity manager used to provide Single-Sign-On for different operating systems. 
B)  A driver package used to support 3D printers. 
C)  A cluster manager used to handle node access to shared storage. 
D)  A combined interface to several virtualization products. 
E)  A Linux-based virtualization hypervisor. 
A)  An identity manager used to provide Single-Sign-On for different operating systems. 
B)  A driver package used to support 3D printers. 
C)  A cluster manager used to handle node access to shared storage. 
D)  A combined interface to several virtualization products. 
E)  A Linux-based virtualization hypervisor.

Which of the following technologies are parts of the Red Hat Enterprise Linux High Availability Add-On?

SIMULATION Which virsh subcommand is used to change the CD-ROM image file attached to a virtual machine? (Specify ONLY the subcommand without any parameters.)

SIMULATION In the command: crm configure ____ http-after-ipv4 Mandatory: VHost1IPv4 HTTPD which missing word is required in order to ensure that the service HTTPD is always started after the service VHost1IP?

SIMULATION In the command vzctl ____ 105 /usr/bin/apt-get install wget which subcommand of vzctl is missing in order to install wget in the OpenVZ container 105?

Which of the following are tools or services that manage a Linux Virtual Server (LVS) setup?

In case one service in a Pacemaker cluster depends on another service running on the same node, which score should be assigned to the constraint describing that dependency?

Which of the following commands can be used to safely test and preview Pacemaker configuration changes?

Which actions should be taken in a load balanced cluster in order to protect the load balancer against outages?

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

What is the task of the Cluster Logical Volume Manager, CLVM?

Which of the following statements are true regarding the handling of a hardware error in a high availability cluster?

How does high availability clustering relate to periodic storage backup?

Which of the following statements is true regarding the quorum in a two node Pacemaker cluster?

Which of the following commands are needed to establish a private network between two (or more) KVM virtual machines that is not visible to other KVM instances on the same KVM host?

Which of the following statements are true regarding resource management for full virtualization?

Which of the following tasks are parts of a hypervisor's responsibility?

SIMULATION Which subcommand of virsh opens the XML configuration of a virtual network in an editor in order to make changes to that configuration? (Specify ONLY the subcommand without any parameters.)

Which of the following tasks is performed by Vagrant?

SIMULATION What is the name of the global configuration file for the xl tool stack? (Specify the file name only without any path.)

What is libvirt?

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

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Exam 11: LPIC-3 Virtualization & High Availability

Which of the following technologies are parts of the Red Hat Enterprise Linux High Availability Add-On?

SIMULATION Which virsh subcommand is used to change the CD-ROM image file attached to a virtual machine? (Specify ONLY the subcommand without any parameters.)

SIMULATION In the command: crm configure ____ http-after-ipv4 Mandatory: VHost1IPv4 HTTPD which missing word is required in order to ensure that the service HTTPD is always started after the service VHost1IP?

SIMULATION In the command vzctl ____ 105 /usr/bin/apt-get install wget which subcommand of vzctl is missing in order to install wget in the OpenVZ container 105?

Which of the following are tools or services that manage a Linux Virtual Server (LVS) setup?

In case one service in a Pacemaker cluster depends on another service running on the same node, which score should be assigned to the constraint describing that dependency?

Which of the following commands can be used to safely test and preview Pacemaker configuration changes?

Which actions should be taken in a load balanced cluster in order to protect the load balancer against outages?

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

What is the task of the Cluster Logical Volume Manager, CLVM?

Which of the following statements are true regarding the handling of a hardware error in a high availability cluster?

How does high availability clustering relate to periodic storage backup?

Which of the following statements is true regarding the quorum in a two node Pacemaker cluster?

Which of the following commands are needed to establish a private network between two (or more) KVM virtual machines that is not visible to other KVM instances on the same KVM host?

Which of the following statements are true regarding resource management for full virtualization?

Which of the following tasks are parts of a hypervisor's responsibility?

SIMULATION Which subcommand of virsh opens the XML configuration of a virtual network in an editor in order to make changes to that configuration? (Specify ONLY the subcommand without any parameters.)

Which of the following tasks is performed by Vagrant?

SIMULATION What is the name of the global configuration file for the xl tool stack? (Specify the file name only without any path.)

What is libvirt?

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