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Lpi 305-300 Exam Syllabus Topics:

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

>> 305-300試験対策 <<

305-300模擬対策 & 305-300試験資料

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Lpi LPIC-3 Exam 305: Virtualization and Containerization 認定 305-300 試験問題 (Q86-Q91):

質問 # 86
Which sub-command of xl changes the media inside a virtual CD-ROM drive of a Xen guest domain?
(Specify ONLY the sub-command without any path or parameters.)
Solution:
block-attach - or - xl cd-insert - or - cd-eject - or - xl cd-eject - or - cd-insert - or - xl block-attach - or - block-detach - or - xl block-detach Determine whether the given solution is correct?

正解：B

解説：
According to official Xen xl toolstack documentation, thecorrect sub-commandsused to change media in a virtual CD-ROM drive arecd-insertandcd-eject. These commands are specifically designed for inserting or ejecting ISO media from a Xen guest's virtual CD-ROM device.
While commands such as block-attach and block-detach are valid xl sub-commands, they are used for attaching and detaching block devices in general and arenot specific to CD-ROM media operations. The provided solution lists multiple commands, including incorrect and unrelated ones, rather than specifying the correct sub-command precisely.
Because the solution does not accurately and exclusively identify the correct xl sub-command, it is considered incorrect. Therefore, the correct determination isB.


質問 # 87
Which of the following commands deletes all volumes which are not associated with a container?

正解：E

解説：
Explanation
The command that deletes all volumes which are not associated with a container is docker volume prune. This command removes all unused local volumes, which are those that are not referenced by any containers. By default, it only removes anonymous volumes, which are those that are not given a specific name when they are created. To remove both unused anonymous and named volumes, the --all or -a flag can be added to the command. The command will prompt for confirmation before deleting the volumes, unless the --force or -f flag is used to bypass the prompt. The command will also show the total reclaimed space after deleting the volumes12.
The other commands listed in the question are not valid or do not have the same functionality as docker volume prune. They are either made up, misspelled, or have a different purpose. These commands are:
* docker volume cleanup: This command does not exist in Docker. There is no cleanup subcommand for docker volume.
* docker volume orphan -d: This command does not exist in Docker. There is no orphan subcommand for docker volume, and the -d flag is not a valid option for any docker volume command.
* docker volume vacuum: This command does not exist in Docker. There is no vacuum subcommand for docker volume.
* docker volume garbage-collect: This command does not exist in Docker. There is no garbage-collect subcommand for docker volume.
References:
* docker volume prune | Docker Docs
* How to Remove all Docker Volumes - YallaLabs.


質問 # 88
What does LXC stand for?

正解：A

解説：
LXCstands forLinux Containers, a lightweight virtualization technology that enables multiple isolated Linux systems (containers) to run on a single Linux host. Virtualization and containerization documentation describes LXC as acontainer-based virtualization solutionthat uses Linux kernel features such as namespaces, control groups (cgroups), and capabilitiesto provide process isolation without requiring a full hypervisor.
Unlike traditional virtual machines, LXC containers share the host kernel, which significantly reduces overhead and improves performance. Each container behaves like an independent Linux system with its own process tree, network interfaces, and filesystem, while still relying on the host kernel for execution.
LXC is often referred to as"system containers", as it allows running full Linux distributions inside containers, unlike application-focused containers such as Docker. It serves as the foundation for higher-level container platforms, includingLXD, which provides enhanced management features and APIs.
The other options are incorrect because they do not align with established Linux container terminology.
Official Linux container documentation consistently defines LXC asLinux Containers, making optionBthe correct answer.


質問 # 89
Which of the following statements is true regarding the following output ofxl list:

正解：D


質問 # 90
Which command within virsh lists the virtual machines that are available on the current host?

正解：B

解説：
The virsh command used to listall virtual machines, including both running and stopped domains, isvirsh list --all. The optionlist-alldirectly corresponds to this functionality.
The plain list command only shows running domains. The other options are not valid virsh commands.
Therefore, the correct answer isA.


質問 # 91
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