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Lpi 305-300 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Container Virtualization25%- LXC
  • 1. Use system containers using LXC and LXD
  • 2. Resource limits configuration
  • 3. LXC/LXD profiles and images
  • 4. LXC version 3.0 or higher
- Docker
  • 1. Deploying applications with Docker
  • 2. Building images with Dockerfiles
  • 3. Managing volumes and networks
  • 4. How Docker interacts with the node's Linux system
  • 5. Docker architecture
  • 6. Manage Docker nodes and Docker containers
- Container Virtualization Concepts
  • 1. Differences between system containers and application containers
  • 2. Troubleshooting container components using standard Linux tools
  • 3. Linux capabilities
  • 4. Concept of container virtualization
  • 5. Linux kernel components: namespaces and cgroups
- Container Orchestration Platforms
  • 1. Kubernetes key concepts
  • 2. Docker Swarm key concepts
  • 3. Understanding container orchestration importance
  • 4. Docker Compose
Topic 2: Full Virtualization25%- Libvirt Virtual Machine Management
  • 1. Manage virtualization hosts and VMs (libvirt domains) using libvirt and related tools
  • 2. Domain XML configuration
  • 3. virt-install options
  • 4. Virtual networking and storage management
  • 5. virsh command usage (list, define, undefine, start, stop)
  • 6. Snapshots and migrations
- Xen
  • 1. Xen version 4.x
  • 2. Domain configuration
  • 3. Xen management tools
  • 4. Install, configure, maintain, migrate and troubleshoot Xen installations
- Virtual Machine Disk Image Management
  • 1. qemu-img info, convert, resize operations
  • 2. Converting disk images between formats and hypervisors
  • 3. Manage virtual machines disk images
  • 4. Accessing data stored within an image
  • 5. qcow2 vs raw formats
  • 6. Backing file chains and snapshot handling
- QEMU
  • 1. QEMU command line tools
  • 2. Install, configure, maintain, migrate and troubleshoot QEMU installations
  • 3. QEMU machine types
  • 4. QEMU networking
- Virtualization Concepts and Theory
  • 1. Hardware virtualization extensions (VT-x/AMD-V)
  • 2. Hypervisor architectures
  • 3. Device emulation vs paravirtual drivers
  • 4. Xen, QEMU and libvirt terminology
  • 5. General concepts, theory and terminology of virtualization
Topic 3: VM Deployment and Provisioning10%- Packer
  • 1. Using Packer for automated image building
  • 2. Packer templates and builders
- Vagrant
  • 1. Vagrantfiles and providers
  • 2. Provisioning of virtual machines with Vagrant
  • 3. Use Vagrant to manage virtual machines
- Cloud Management Tools
  • 1. Common offerings in public clouds
  • 2. Basic feature knowledge of commonly available cloud management tools
- Cloud Init
  • 1. Cloud-init configuration and modules
  • 2. Using cloud-init for instance initialization

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2026 305-300: LPIC-3 Exam 305: Virtualization and Containerization Pass-Sure Valid Test Forum

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Lpi LPIC-3 Exam 305: Virtualization and Containerization Sample Questions (Q25-Q30):

NEW QUESTION # 25
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.)

Answer:

Explanation:
lxc-top
Explanation
LXD supports the following network interface types for containers: macvlan, bridged, physical, sriov, and ovn1. Macvlan creates a virtual interface on the host that is connected to the same network as the parent interface2. Bridged connects the container to a network bridge that acts as a virtual switch3. Physical attaches the container to a physical network interface on the host2. Ipsec and wifi are not valid network interface types for LXD containers. References:
* 1: Bridge network - Canonical LXD documentation
* 2: How to create a network - Canonical LXD documentation
* 4: LXD containers and networking with static IP - Super User


NEW QUESTION # 26
What is the purpose ofcloud-init?

Answer: E

Explanation:
Explanation
Cloud-init is a tool that processes configurations and runs through five stages during the initial boot of Linux VMs in a cloud. It allows users to customize a Linux VM as it boots for the first time, by applying user data to the instance. User data can include scripts, commands, packages, files, users, groups, SSH keys, and more.
Cloud-init can also interact with various cloud platforms and services, such as Azure, AWS, OpenStack, and others. The purpose of cloud-init is to prepare the generic image of an laaS instance to fit a specific instance's configuration, such as hostname, network, security, and application settings. References:
* Cloud-init - The standard for customising cloud instances
* Understanding cloud-init - Azure Virtual Machines
* Tutorial - Customize a Linux VM with cloud-init in Azure - Azure Virtual Machines


NEW QUESTION # 27
Which functionality is provided by Vagrant as well as by Docker? (Choose three.)

Answer: B,C,E

Explanation:
* Both Vagrant and Docker can share directories from the host file system to a guest. This allows the guest to access files and folders from the host without copying them. Vagrant uses the config.vm.
synced_folder option in the Vagrantfile to specify the shared folders1. Docker uses the -v or -- volume flag in the docker run command to mount a host directory as a data volume in the container2.
* Both Vagrant and Docker can download required base images. Base images are the starting point for creating a guest environment. Vagrant uses the config.vm.box option in the Vagrantfile to specify the base image to use1. Docker uses the FROM instruction in the Dockerfile to specify the base image to use2. Both Vagrant and Docker can download base images from public repositories or local sources.
* Both Vagrant and Docker can apply changes to a base image. Changes are modifications or additions to the base image that customize the guest environment. Vagrant uses provisioners to run scripts or commands on the guest after it is booted1. Docker uses instructions in the Dockerfile to execute commands on the base image and create a new image2. Both Vagrant and Docker can save the changes to a new image or discard them after the guest is destroyed.
* Vagrant and Docker differ in how they start system images. Vagrant starts system images as virtual machines by default, using a provider such as VirtualBox, VMware, or Hyper-V1. Docker starts system images as containers by default, using the native containerization functionality on macOS, Linux, and Windows2. Containers are generally more lightweight and faster than virtual machines, but less secure and flexible. References: 1: Vagrant vs. Docker | Vagrant | HashiCorp Developer 2: Vagrant vs Docker: Which Is Right for You? (Could Be Both) - Kinsta Web Development Tools


NEW QUESTION # 28
How does Packer interact with system images?

Answer: B

Explanation:
Packer is a tool that automates the creation of identical machine images for multiple platforms from a single source configuration. Packer works by creating an instance based on a source image, which is a pre-existing image that serves as a starting point. Packer then connects to the instance through a network connection, such as SSH or WinRM, and runs various commands and scripts to install and configure software within the instance. Packer then shuts down the instance and creates a new system image from it, which can be used to launch new instances. Packer supports many platforms, such as AWS, Azure, VMware, Docker, and others.
Packer does not install any software or run any daemon within the target image, nor does it periodically connect to the running instances to re-apply the template. Packer also does not modify the source image directly, but creates a new image from the modified instance. References:
* Packer by HashiCorp
* HashiCorp Packer - Build Automated Machine Images
* Introduction | Packer | HashiCorp Developer


NEW QUESTION # 29
What happens when the following command is executed twice in succession?
docker run -tid -v data:/data debian bash

Answer: C


NEW QUESTION # 30
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