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Guide for LPIC-3: Virtualization and Containerization - Exam 305, version 3.0

Quiz LPIC-3: Virtualization and Containerization - Exam 305, version 3.0

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/ 10

Quiz

1/10
FILL BLANK What LXC command lists containers sorted by their CPU, block I/O or memory consumption? (Specify ONLY the command without any path or parameters.)
Select the answer
1 correct answer
Option l,x,c,-,t,o,p are correct.

Quiz

2/10
What is the purpose of the command vagrant init?
Select the answer
1 correct answer
A.
It executes a provisioning tool in a running box.
B.
It starts a Vagrant box.
C.
It creates a Vagrant configuration file.
D.
It installs Vagrant on a Linux host.
E.
It downloads a Vagrant box.

Quiz

3/10
In order to use the option dom0_mem to limit the amount of memory assigned to the Xen Domain-0, where must this option be specified?
Select the answer
1 correct answer
A.
In the bootloader configuration, when Xen is booted.
B.
In any of Xen’s global configuration files.
C.
In its .config file, when the Domain-0 kernel is built.
D.
In the configuration file /etc/xen/Domain-0.cfg, when Xen starts.
E.
In its Makefile, when Xen is built.

Quiz

4/10
Which functionality is provided by Vagrant as well as by Docker? (Choose three.)
Select the answer
3 correct answers
A.
Both can share directories from the host file system to a guest.
B.
Both start system images as containers instead of virtual machines by default.
C.
Both can download required base images.
D.
Both can apply changes to a base image.
E.
Both start system images as virtual machines instead of containers bv default.

Quiz

5/10
What is the default provider of Vagrant?
Select the answer
1 correct answer
A.
lxc
B.
hyperv
C.
virtualbox
D.
vmware_workstation
E.
docker

Quiz

6/10
In an IaaS cloud, what is a common method for provisioning new computing instances with an operating system and software?
Select the answer
1 correct answer
A.
Each new instance is connected to the installation media of a Linux distribution and provides access to the installer by logging in via SSH.
B.
Each new instance is created based on an image file that contains the operating system as well as software and default configuration for a given purpose.
C.
Each new instance is a clone of another currently running instance that includes all the software, data and state of the original instance.
D.
Each new instance is connected via a VPN with the computer that started the provisioning and tries to PXE boot from that machine.
E.
Each new instance contains a minimal live system running from a virtual CD as the basis from which the administrator deploys the target operating system.

Quiz

7/10
Which command within virsh lists the virtual machines that are running on the current host?
Select the answer
1 correct answer
A.
I view
B.
list-vm
C.
list
D.
show
E.
list-all

Quiz

8/10
What is the purpose of cloud-init?
Select the answer
1 correct answer
A.
Replace common Linux inic systems, such as systemd or SysV init.
B.
Assign an laaS instance to a specific computing node within a cloud.
C.
Standardize the configuration of infrastructure services, such as load balancers or virtual firewalls in a cloud.
D.
Orchestrate the creation and start of multiple related laaS instances.
E.
Prepare the generic image of an laaS instance to fit a specific instance's configuration.

Quiz

9/10
What is the purpose of the packer inspect subcommand?
Select the answer
1 correct answer
A.
Retrieve files from an existing Packer image.
B.
Execute commands within a running instance of a Packer image.
C.
List the artifacts created during the build process of a Packer image.
D.
Show usage statistics of a Packer image.
E.
Display an overview of the configuration contained in a Packer template.

Quiz

10/10
What is the purpose of capabilities in the context of container virtualization?
Select the answer
1 correct answer
A.
Map potentially dangerous system calls to an emulation layer provided by the container virtualization.
B.
Restrict the disk space a container can consume.
C.
Enable memory deduplication to cache files which exist in multiple containers.
D.
Allow regular users to start containers with elevated permissions.
E.
Prevent processes from performing actions which might infringe the container.
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  • Quiz name:LPIC-3: Virtualization and Containerization - Exam 305, version 3.0
  • Total number of questions:60
  • Number of questions for the test:50
  • Pass score:80%

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