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| Certification Vendor: | LPI (Linux Professional Institute) |
|---|---|
| Exam Name: | LPIC-3 Virtualization and Containerization |
| Exam Number: | 305-300 |
| Related Certifications: | LPIC-3 Virtualization and Containerization LPIC-2 |
| Certificate Validity Period: | 5 years |
| Passing Score: | 500 (scaled score, range 200-800) |
| Available Languages: | English, Japanese |
| Exam Price: | USD $132 |
| Real Exam Qty: | 60 |
| Exam Duration: | 90 minutes |
| Exam Format: | Multiple Choice, Fill in the blank |
| Sample Questions: | Lpi 305-300 Sample Questions |
| Exam Way: | Available at Pearson VUE test centers and online via OnVUE |
| Pre Condition: | The candidate must have an active LPIC-2 certification to receive the LPIC-3 certification. |
| Official Syllabus URL: | https://www.lpi.org/our-certifications/exam-305-objectives |
>> Accurate 305-300 Prep Material <<
With the Lpi 305-300 certification exam you will get an opportunity to learn new and in-demand skills. In this way, you will stay updated and competitive in the market and advance your career easily. To do this you just need to pass the LPIC-3 Exam 305: Virtualization and Containerization 305-300 Certification Exam.
The LPIC-3 Exam 305 covers a wide range of topics related to virtualization and containerization, including the basics of virtualization, virtual machine management, containerization, and container orchestration. Candidates are also tested on their ability to deploy and manage virtualization and containerization technologies in a variety of environments, including cloud-based platforms and on-premises data centers.
NEW QUESTION # 70
Which of the following statements are true about sparse images in the context of virtual machine storage?
(Choose two.)
Answer: C,E
Explanation:
Sparse images are a type of virtual disk images that grow in size as data is written to them, but do not shrink when data is deleted from them. Sparse images may consume an amount of space different from their nominal size, which is the maximum size that the image can grow to. For example, a sparse image with a nominal size of 100 GB may only take up 20 GB of physical storage if only 20 GB of data is written to it. Sparse images allocate backend storage at the first usage of a block, which means that the physical storage is only used when the virtual machine actually writes data to a block. This can save storage space and improve performance, as the image does not need to be pre-allocated or zeroed out.
Sparse images are not automatically shrunk when files within the image are deleted, because the virtual machine does not inform the host system about the freed blocks. To reclaim the unused space, a special tool such as virt-sparsify1 or qemu-img2 must be used to compact the image. Sparse images can be used with both full virtualization and paravirtualization, as the type of virtualization does not affect the format of the disk image. Sparse images are not automatically resized when their maximum capacity is about to be exceeded, because this would require changing the partition table and the filesystem of the image, which is not a trivial task. To resize a sparse image, a tool such as virt-resize3 or qemu-img2 must be used to increase the nominal size and the filesystem size of the image. References: 1 (search for "virt-sparsify"), 2 (search for "qemu- img"), 3 (search for "virt-resize").
NEW QUESTION # 71
Which of the following resources can be limited by libvirt for a KVM domain? (Choose two.)
Answer: C,E
Explanation:
Libvirt is a toolkit that provides a common API for managing different virtualization technologies, such as KVM, Xen, LXC, and others. Libvirt allows users to configure and control various aspects of a virtual machine (also called a domain), such as its CPU, memory, disk, network, and other resources. Among the resources that can be limited by libvirt for a KVM domain are:
* Amount of CPU time: Libvirt allows users to specify the number of virtual CPUs (vCPUs) that a domain can use, as well as the CPU mode, model, topology, and tuning parameters. Users can also set the CPU shares, quota, and period to control the relative or absolute amount of CPU time that a domain can consume. Additionally, users can pin vCPUs to physical CPUs or NUMA nodes to improve performance and isolation. These settings can be configured in the domain XML file under the <cpu> and <cputune> elements12.
* Size of available memory: Libvirt allows users to specify the amount of memory that a domain can use, as well as the memory backing, tuning, and NUMA node parameters. Users can also set the memory hard and soft limits, swap hard limit, and minimum guarantee to control the memory allocation and reclaim policies for a domain. These settings can be configured in the domain XML file under the <memory>, <memoryBacking>, and <memtune> elements13.
The other resources listed in the question are not directly limited by libvirt for a KVM domain. File systems allowed in the domain are determined by the disk and filesystem devices that are attached to the domain, which can be configured in the domain XML file under the <disk> and <filesystem> elements14. Number of running processes and number of available files are determined by the operating system and the file system of the domain, which are not controlled by libvirt.
:
libvirt: Domain XML format
CPU Allocation
Memory Allocation
Hard drives, floppy disks, CDROMs
NEW QUESTION # 72
Which of the following technologies is the most important component of IaaS clouds?
Answer: E
Explanation:
The foundational technology ofInfrastructure as a Service (IaaS)isvirtualization. Virtualization enables cloud providers to abstract physical hardware into flexible, on-demand virtual resources such as compute instances, storage, and networks.
All major IaaS platforms rely on virtualization to provide scalability, isolation, elasticity, and multi-tenancy.
Without virtualization, the dynamic provisioning model of IaaS would not be possible.
Therefore, the correct answer isB.
NEW QUESTION # 73
Which of the following commands boots a QEMU virtual machine using hardware virtualization extensions?
Answer: B
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 # 74
Which of the following values would be valid in the FROM statement in aDockerfile?
Answer: C
NEW QUESTION # 75
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