Lpi LPIC-3 Exam 305: Virtualization and Containerization

QUESTION NO: 1
What are the key benefits of using cloud management tools?

A. Efficient resource allocation B. Automated scaling of virtual machines C. Enhanced security through encryption D. Streamlined billing and invoicing

Correct Answer: A

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 2
In order to determine if a virtualization host offers Intel VT-x support, which CPU flag must be searched for in the file /proc/cpuinfo?

Correct Answer:

vmx
Explanation:
Intel VT-x is Intel's hardware-assisted virtualization technology and is required to run hypervisors such as KVMefficiently. According to Linux and KVM documentation, support for Intel VT-x can be verified by checking the CPU flags listed in the /proc/cpuinfo file.
The specific flag that indicates Intel VT-x support isvmx. This flag appears in the flags section for each processor core if VT-x is available and enabled in the system firmware (BIOS or UEFI). The presence of vmx confirms that the CPU supports hardware virtualization extensions required by KVM.
If the flag is absent, virtualization may either be unsupported by the CPU or disabled in the firmware settings.
For AMD processors, a different flag (svm) is used.
Virtualization documentation consistently references the vmx flag as the authoritative indicator for Intel VT-x support. Therefore, the correct and documented answer isvmx.

QUESTION NO: 3
What is the purpose ofcloud-init?

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

Correct Answer: A

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 4
FILL BLANK
What is the default path to the Docker daemon configuration file on Linux? (Specify the full name of the file, Including path.)

Correct Answer:

/etc/docker/daemon.json
Explanation:
The default path to the Docker daemon configuration file on Linux is /etc/docker/daemon.json. This file is a JSON file that contains the settings and options for the Docker daemon, which is the service that runs on the host operating system and manages the containers, images, networks, and other Docker resources. The /etc
/docker/daemon.json file does not exist by default, but it can be created by the user to customize the Docker daemon behavior. The file can also be specified by using the --config-file flag when starting the Docker daemon. The file must be a valid JSON object and follow the syntax and structure of the dockerd reference docs12. References:
* Docker daemon configuration file - Medium3
* Docker daemon configuration overview | Docker Docs4
* docker daemon | Docker Docs5

QUESTION NO: 5
Ifdocker stackis to be used to run a Docker Compose file on a Docker Swarm, how are the images referenced in the Docker Compose configuration made available on the Swarm nodes?

A. docker stack instructs the Swarm nodes to pull the images from a registry, although it does not upload the images to the registry. B. docker stack passes the images to the Swarm master which distributes the images to all other Swarm nodes. C. docker stack builds the images locally and copies them to only those Swarm nodes which run the service. D. docker stack transfers the image from its local Docker cache to each Swarm node. E. docker stack triggers the build process for the images on all nodes of the Swarm.

Correct Answer: A

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 6
Which functionality is provided by Vagrant as well as by Docker? (Choose three.)

A. Both can download required base images. B. Both can apply changes to a base image. C. Both start system images as containers instead of virtual machines by default. D. Both start system images as virtual machines instead of containers bv default. E. Both can share directories from the host file system to a guest.

Correct Answer: A,B,E

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 7
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.) Solution:
kvm-intel.ko - or - kvm-intel - or - kvm_intel.ko - or - kvm_intel
Determine whether the given solution is correct?

A. Correct B. Incorrect

Correct Answer: A

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 8
Which of the following components are essential in Docker architecture? (Select all that apply)

A. Docker Registry B. Docker Daemon C. Docker Client D. Docker Compose

Correct Answer: A,B,C

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 9
What is oVirt?

A. An extension to the Linux Kernel used to provide container virtualization similar to LXC and OpenVZ B. A Linux-based hypervisor similar to KVM and Xen C. A comprehensive management infrastructure for Linux-based virtualization D. A library that provides access to several different virtualization technologies in a common manner E. An approach used to eliminate the need for virtualization called Zero-Virt

Correct Answer: C

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

QUESTION NO: 10
Which of the following values are valid in the type attribute of a<domain>element in a libvirt domain definition? (Choose two.)

A. namespace B. cgroup C. proc D. Ixc E. kvm

Correct Answer: D,E

Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).

Lpi LPIC-3 Exam 305: Virtualization and Containerization - 305-300 Exam Questions