Question 1

Which of the following statements is true regarding XenStore?

Accepted Answer

A)  It is a web interface used to provide self-service domain provisioning to users with sufficient privileges. 
B)  It saves the persistent configuration of all defined Xen domains and restores them when the host system is started. 
C)  It manages disk file images on behalf of all virtual machines and provides them as virtual devices to guest domains. 
D)  It stores run time information regarding Xen and its domains using hierarchical namespaces shared between domains. 
E)  It is a software repository located within the host system used to provide software packages to the guest domains. 
A)  It is a web interface used to provide self-service domain provisioning to users with sufficient privileges. 
B)  It saves the persistent configuration of all defined Xen domains and restores them when the host system is started. 
C)  It manages disk file images on behalf of all virtual machines and provides them as virtual devices to guest domains. 
D)  It stores run time information regarding Xen and its domains using hierarchical namespaces shared between domains. 
E)  It is a software repository located within the host system used to provide software packages to the guest domains.

Question 2

A configuration file for a Xen virtual machine was created with file name slack.cfg within Xen's configuration directory. Which of the following commands starts the virtual machine defined in this configuration file and opens the virtual machine's console on the current command line?

Accepted Answer

A)  xl start slack 
B)  xl create slack.cfg --show-console 
C)  xl create slack.cfg 
D)  xl start slack.cfg -c 
E)  xl create slack.cfg -c 
A)  xl start slack 
B)  xl create slack.cfg --show-console 
C)  xl create slack.cfg 
D)  xl start slack.cfg -c 
E)  xl create slack.cfg -c

Question 3

What is true for a virtual IP address in the context of keepalived?

Accepted Answer

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. 
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.

Question 4

Which of the following describes a split brain situation in a high availability cluster?

Accepted Answer

A)  Several cluster nodes access a shared resource without coordination. 
B)  Several cluster nodes run different instances of the same services. 
C)  Incoming network connections are accidentally forwarded to more than one backend server. 
D)  Instead of shared storage, each node uses local storage managed by itself and replicates with other nodes. 
E)  In addition to shared storage, each node has local storage that is not shared with other nodes. 
A)  Several cluster nodes access a shared resource without coordination. 
B)  Several cluster nodes run different instances of the same services. 
C)  Incoming network connections are accidentally forwarded to more than one backend server. 
D)  Instead of shared storage, each node uses local storage managed by itself and replicates with other nodes. 
E)  In addition to shared storage, each node has local storage that is not shared with other nodes.

Question 5

Which kernel module must be loaded to initiate a RAID-1 like copy of data on two separate storage devices for a clustered storage solution?

Accepted Answer

A)  rsyncd 
B)  drbd 
C)  clraid 
D)  clmirror 
A)  rsyncd 
B)  drbd 
C)  clraid 
D)  clmirror

Question 6

Which of the following statements is true regarding networking with libvirt?

Accepted Answer

A)  Libvirt's network functionality is limited to connecting virtual machines to a physical network interface of the host system. 
B)  Libvirt networks appear, by default, as standard Linux bridges in the host system. 
C)  Libvirt assigns the same MAC address to all virtual machines and isolates their network interfaces at the link layer. 
D)  Libvirt requires a dedicated network interface that may not be used by the host system. 
E)  Libvirt supports exactly one virtual network and connects all virtual machines to it. 
A)  Libvirt's network functionality is limited to connecting virtual machines to a physical network interface of the host system. 
B)  Libvirt networks appear, by default, as standard Linux bridges in the host system. 
C)  Libvirt assigns the same MAC address to all virtual machines and isolates their network interfaces at the link layer. 
D)  Libvirt requires a dedicated network interface that may not be used by the host system. 
E)  Libvirt supports exactly one virtual network and connects all virtual machines to it.

Question 7

Using Linux Virtual Server (LVS) without any additional tools provides which of the following features?

Accepted Answer

A)  Balancing network connections across several backend servers. 
B)  Automatically taking over the services of failed nodes. 
C)  Restarting failed services on the backend servers. 
D)  Checking the integrity of services on backend servers. 
E)  Starting and stopping backend servers as needed. 
A)  Balancing network connections across several backend servers. 
B)  Automatically taking over the services of failed nodes. 
C)  Restarting failed services on the backend servers. 
D)  Checking the integrity of services on backend servers. 
E)  Starting and stopping backend servers as needed.

Question 8

Which of the following commands provides a detailed list of all image files contained in the libvirt storage pool vol1?

Accepted Answer

A)  virsh list --volumes --pool vol1 --details 
B)  virsh vol-details vol1 
C)  virsh --show-pool vol1 --details 
D)  virsh vol-list vol1 --details 
E)  virsh volumes --source vol1 -details 
A)  virsh list --volumes --pool vol1 --details 
B)  virsh vol-details vol1 
C)  virsh --show-pool vol1 --details 
D)  virsh vol-list vol1 --details 
E)  virsh volumes --source vol1 -details

Question 9

In keepalived, what is configured by the configuration option sorry_server?

Accepted Answer

A)  The addresses of backend servers that were overloaded in the past and should be scheduled with a reduced priority. 
B)  The hostnames of the servers that, despite the remaining configuration, should always be scheduled by the Serial Operation Round Robin algorithm. 
C)  The addresses of backend servers that should not get assigned any new connections. 
D)  The default virtual host that is assigned to incoming HTTP requests missing a Host: header before forwarding them to a backend server. 
E)  The address of a server to which requests are redirected in case no real server is available. 
A)  The addresses of backend servers that were overloaded in the past and should be scheduled with a reduced priority. 
B)  The hostnames of the servers that, despite the remaining configuration, should always be scheduled by the Serial Operation Round Robin algorithm. 
C)  The addresses of backend servers that should not get assigned any new connections. 
D)  The default virtual host that is assigned to incoming HTTP requests missing a Host: header before forwarding them to a backend server. 
E)  The address of a server to which requests are redirected in case no real server is available.

Question 10

Which of the following statements is true regarding a failover cluster?

Accepted Answer

A)  The core component of every failover cluster is a load balancer. 
B)  Every service may not be run more than once in a cluster. 
C)  Failover clusters provide scalability of a service beyond the capacities of one cluster node. 
D)  Failover clusters always require storage that is shared by all nodes. 
E)  In normal operation, services may be spread over all nodes. 
A)  The core component of every failover cluster is a load balancer. 
B)  Every service may not be run more than once in a cluster. 
C)  Failover clusters provide scalability of a service beyond the capacities of one cluster node. 
D)  Failover clusters always require storage that is shared by all nodes. 
E)  In normal operation, services may be spread over all nodes.

Question 11

Which of the following statements are true of full virtualization?

Accepted Answer

A)  Full virtualization has superior I/O performance through the emulated device drivers. 
B)  Full virtualization is faster than paravirtualization. 
C)  Full virtualization requires time and system resources for emulation. 
D)  Full virtualization requires no modification to the Guest OS kernel. 
E)  Full virtualization works through CPU emulation. 
A)  Full virtualization has superior I/O performance through the emulated device drivers. 
B)  Full virtualization is faster than paravirtualization. 
C)  Full virtualization requires time and system resources for emulation. 
D)  Full virtualization requires no modification to the Guest OS kernel. 
E)  Full virtualization works through CPU emulation.

Question 12

Which of the following device classes are commonly used STONITH devices?

Accepted Answer

A)  Uninterruptable Power Supplies, UPS 
B)  CPU frequency management tools 
C)  Blade Control Devices 
D)  Remote Management Services like iLO or DRAC 
E)  Local node storage 
A)  Uninterruptable Power Supplies, UPS 
B)  CPU frequency management tools 
C)  Blade Control Devices 
D)  Remote Management Services like iLO or DRAC 
E)  Local node storage

Question 13

Which of the following are valid KVM parameters?

Accepted Answer

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 
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

Question 14

SIMULATION Which command in the KVM monitor restores a snapshot? (Specify ONLY the command without any path or parameters.)

Accepted Answer

The answer of SIMULATION Which command in the KVM monitor...

Question 15

In a Pacemaker cluster, which one of the following commands shows the right syntax for fencing the node on port 3 using the APC rack PDU device which can be found at IP address 192.168.1.145?

Accepted Answer

A)  apc_stonith -a 192.168.1.145 -l apc -n 3 -v -o shutdown -r now 
B)  fence_apc -a 192.168.1.145 -l apc -p apc -n 3 -v -o shutdown -r now 
C)  fence_apc -a 192.168.1.145 -l apc -p apc -n 3 -v -o reboot 
D)  apc_stonith -a 192.168.1.145 -l apc -p apc -n 3 -v -o reboot 
A)  apc_stonith -a 192.168.1.145 -l apc -n 3 -v -o shutdown -r now 
B)  fence_apc -a 192.168.1.145 -l apc -p apc -n 3 -v -o shutdown -r now 
C)  fence_apc -a 192.168.1.145 -l apc -p apc -n 3 -v -o reboot 
D)  apc_stonith -a 192.168.1.145 -l apc -p apc -n 3 -v -o reboot

Question 16

Which of the following products use container-based virtualization?

Accepted Answer

A)  KVM 
B)  Linux VServer 
C)  LXC 
D)  OpenVZ 
E)  Xen 
A)  KVM 
B)  Linux VServer 
C)  LXC 
D)  OpenVZ 
E)  Xen

Question 17

Which of the following commands boots a KVM virtual machine using Debian GNU/Linux?

Accepted Answer

A)  qemu -create -drive file=debian.img -cdrom debian.iso -m 1024 -boot d 
B)  qemu-kvm -drive file=debian.img -cdrom debian.iso -m 1024 -boot d 
C)  kvm -create -drive file=debian.img -cdrom debian.iso -m 1024 -boot d 
D)  kvm -qemu -drive file=debian.img -cdrom debian.iso -m 1024 -boot d 
A)  qemu -create -drive file=debian.img -cdrom debian.iso -m 1024 -boot d 
B)  qemu-kvm -drive file=debian.img -cdrom debian.iso -m 1024 -boot d 
C)  kvm -create -drive file=debian.img -cdrom debian.iso -m 1024 -boot d 
D)  kvm -qemu -drive file=debian.img -cdrom debian.iso -m 1024 -boot d

Question 18

Which of the following statements is true regarding the following output of xl list:     Name          ID   Mem VCPUs      State   Time(s)     Domain-0       0   384     1     r-----    498.7       Debian         2   305     1     --p---    783.5       Slack          6    64     1     -b----    313.6       CentOS         7   512     2     r-----    455.1

Accepted Answer

A)  It is necessary to use the xl command to change Slack's state to running. 
B)  CentOS is the domain which has consumed the most CPU time. 
C)  The domain with ID 2 uses paravirtualization. 
D)  Both Debian and Slack require xl commands to start running. 
E)  Slack is idle or waiting for I/O. 
A)  It is necessary to use the xl command to change Slack's state to running. 
B)  CentOS is the domain which has consumed the most CPU time. 
C)  The domain with ID 2 uses paravirtualization. 
D)  Both Debian and Slack require xl commands to start running. 
E)  Slack is idle or waiting for I/O.

Question 19

Which one of the following tools can NOT be used to create virtual machines, including their configuration in a libvirt-based KVM environment?

Accepted Answer

A)  virt-clone 
B)  virt-install 
C)  virt-img 
D)  virt-manager 
A)  virt-clone 
B)  virt-install 
C)  virt-img 
D)  virt-manager

Question 20

How can data in a computing instance in an IaaS cloud be permanently saved and accessed even after the recreation of the computing instance?

Accepted Answer

A)  By saving the data to the memory of the computing instance using tmpfs. 
B)  By saving the data anywhere in the computing instance's file system. 
C)  By saving the data to /cloud/persistent/ which is provided in all common IaaS clouds. 
D)  By saving the data to object stores provided by a separate service in the cloud. 
E)  By saving the data on persistent block devices that must be explicitly connected to the computing instance. 
A)  By saving the data to the memory of the computing instance using tmpfs. 
B)  By saving the data anywhere in the computing instance's file system. 
C)  By saving the data to /cloud/persistent/ which is provided in all common IaaS clouds. 
D)  By saving the data to object stores provided by a separate service in the cloud. 
E)  By saving the data on persistent block devices that must be explicitly connected to the computing instance.

Which of the following statements is true regarding XenStore?

A configuration file for a Xen virtual machine was created with file name slack.cfg within Xen's configuration directory. Which of the following commands starts the virtual machine defined in this configuration file and opens the virtual machine's console on the current command line?

What is true for a virtual IP address in the context of keepalived?

Which of the following describes a split brain situation in a high availability cluster?

Which kernel module must be loaded to initiate a RAID-1 like copy of data on two separate storage devices for a clustered storage solution?

Which of the following statements is true regarding networking with libvirt?

Using Linux Virtual Server (LVS) without any additional tools provides which of the following features?

Which of the following commands provides a detailed list of all image files contained in the libvirt storage pool vol1?

In keepalived, what is configured by the configuration option sorry_server?

Which of the following statements is true regarding a failover cluster?

Which of the following statements are true of full virtualization?

Which of the following device classes are commonly used STONITH devices?

Which of the following are valid KVM parameters?

SIMULATION Which command in the KVM monitor restores a snapshot? (Specify ONLY the command without any path or parameters.)

In a Pacemaker cluster, which one of the following commands shows the right syntax for fencing the node on port 3 using the APC rack PDU device which can be found at IP address 192.168.1.145?

Which of the following products use container-based virtualization?

Which of the following commands boots a KVM virtual machine using Debian GNU/Linux?

Which of the following statements is true regarding the following output of xl list: Name ID Mem VCPUs State Time(s) Domain-0 0 384 1 r----- 498.7 Debian 2 305 1 --p--- 783.5 Slack 6 64 1 -b---- 313.6 CentOS 7 512 2 r----- 455.1

Which one of the following tools can NOT be used to create virtual machines, including their configuration in a libvirt-based KVM environment?

How can data in a computing instance in an IaaS cloud be permanently saved and accessed even after the recreation of the computing instance?

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Exam 11: LPIC-3 Virtualization & High Availability

Which of the following statements is true regarding XenStore?

A configuration file for a Xen virtual machine was created with file name slack.cfg within Xen's configuration directory. Which of the following commands starts the virtual machine defined in this configuration file and opens the virtual machine's console on the current command line?

What is true for a virtual IP address in the context of keepalived?

Which of the following describes a split brain situation in a high availability cluster?

Which kernel module must be loaded to initiate a RAID-1 like copy of data on two separate storage devices for a clustered storage solution?

Which of the following statements is true regarding networking with libvirt?

Using Linux Virtual Server (LVS) without any additional tools provides which of the following features?

Which of the following commands provides a detailed list of all image files contained in the libvirt storage pool vol1?

In keepalived, what is configured by the configuration option sorry_server?

Which of the following statements is true regarding a failover cluster?

Which of the following statements are true of full virtualization?

Which of the following device classes are commonly used STONITH devices?

Which of the following are valid KVM parameters?

SIMULATION Which command in the KVM monitor restores a snapshot? (Specify ONLY the command without any path or parameters.)

In a Pacemaker cluster, which one of the following commands shows the right syntax for fencing the node on port 3 using the APC rack PDU device which can be found at IP address 192.168.1.145?

Which of the following products use container-based virtualization?

Which of the following commands boots a KVM virtual machine using Debian GNU/Linux?

Which of the following statements is true regarding the following output of xl list: Name ID Mem VCPUs State Time(s) Domain-0 0 384 1 r----- 498.7 Debian 2 305 1 --p--- 783.5 Slack 6 64 1 -b---- 313.6 CentOS 7 512 2 r----- 455.1

Which one of the following tools can NOT be used to create virtual machines, including their configuration in a libvirt-based KVM environment?

How can data in a computing instance in an IaaS cloud be permanently saved and accessed even after the recreation of the computing instance?

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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