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Lpi 305-300 Exam Syllabus Topics:

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

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Lpi LPIC-3 Exam 305: Virtualization and Containerization Sample Questions (Q83-Q88):

NEW QUESTION # 83
Which of the following statements are true of full virtualization? (Select THREE correct answers)

Answer: A,B,D

Explanation:
Full virtualization allowsunmodified guest operating systemsto run in virtual machines, making statementB correct. The hypervisor presents a complete hardware abstraction to the guest OS.
Historically and conceptually, full virtualization relies onCPU emulation or hardware-assisted virtualization, making statementCcorrect. Even with hardware extensions, some degree of emulation is involved.
Full virtualization alsorequires additional system resources and processing timeto emulate hardware and manage isolation, making statementEcorrect.
Statement A is incorrect because paravirtualization often offers better performance. Statement D is incorrect because emulated I/O devices generally perform worse than paravirtualized drivers.
Therefore, the correct answers areB, C, and E.


NEW QUESTION # 84
Which functionality is provided by Vagrant as well as by Docker? (Choose three.)

Answer: A,B,C

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 baseimage 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 # 85
How can data be shared between several virtual machines running on the same Linux-based host system?

Answer: A

Explanation:
The correct way to share data between several virtual machines running on the same Linux-based host system is by using a network file system or file transfer protocol. A network file system (NFS) is a distributed file system protocol that allows a user on a client computer to access files over a network in a manner similar to how local storage is accessed1. A file transfer protocol (FTP) is a standard network protocol used for the transfer of computer files between a client and server on a computer network2. Both methods allow data to be shared between virtual machines regardless of their underlying file systems or virtualization technologies. The other options are incorrect because they either do not work or are not feasible. Option A is wrong because each virtual machine has its own file system that is not directly accessible by other virtual machines. Option B is wrong because there is no such device as /dev/virt-disks/remote/ that can be used to mount other virtual machines' file systems. Option C is wrong because a ramdisk is a volatile storage device that is not suitable for sharing data between virtual machines. Option E is wrong because attaching the same virtual hard disk to multiple virtual machines can cause data corruption and conflicts, and EXT4 does not have any sharing extensions that can prevent this. References:https://kb.vmware.com/s/article/1012706
https://bing.com/search?q=data+sharing+between+virtual+machines


NEW QUESTION # 86
Which of the following commands boots a QEMU virtual machine using hardware virtualization extensions?

Answer: D

Explanation:
Explanation
The correct command to boot a QEMU virtual machine using hardware virtualization extensions is qemu
-accel kvm -drive file-debian.img -cdrom debian.iso -m 1024 -boot d. This command uses the -accel option to specify the hardware accelerator to use, which in this case is kvm. KVM is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V)1. The -drive option specifies the disk image file to use, which in this case is debian.img. The -cdrom option specifies the ISO image file to use as a CD-ROM, which in this case is debian.iso. The -m option specifies the amount of memory to allocate to the virtualmachine, which in this case is 1024 MB. The -boot option specifies the boot order, which in this case is d, meaning to boot from the CD-ROM first. References:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_
https://fedoraproject.org/wiki/Virtualization


NEW QUESTION # 87
What kind of virtualization is implemented by LXC?

Answer: B


NEW QUESTION # 88
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