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| Certification Vendor: | LPI (Linux Professional Institute) |
|---|---|
| Exam Name: | LPIC-3 Virtualization and Containerization |
| Exam Number: | 305-300 |
| Exam Duration: | 90 minutes |
| Related Certifications: | LPIC-3 Virtualization and Containerization LPIC-2 |
| Exam Format: | Multiple Choice, Fill in the blank |
| Available Languages: | English, Japanese |
| Real Exam Qty: | 60 |
| Exam Price: | USD $132 |
| Passing Score: | 500 (scaled score, range 200-800) |
| Certificate Validity Period: | 5 years |
| 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 |
ShikenPASSは、魅力的なキャラクターで世界中の試験受験者を招きます。当社の専門家は彼らの卓越性に大きく貢献しました。したがって、試験をシミュレートする305-300が最良であると率直に言うことができます。 305-300学習教材のコンテンツを作成する取り組みは、学習ガイドの開発につながり、完成度を高めます。関心を集め、いくつかの難しい点を簡素化するために、当社の専門家は当社の305-300学習資料を設計し、305-300学習ガイドをよりよく理解できるように最善を尽くします。
Lpi 305-300試験の準備にあたり、候補者はLinux管理に関する確固たる理解と、仮想化およびコンテナ化技術を使用した経験が必要です。ネットワーキングやストレージ技術といった仮想化およびコンテナ化環境の重要なコンポーネントにも対処できる経験があることも望ましいです。本試験のために、書籍やオンラインコース、実践試験などの様々な学習資料が用意されています。
仮想化およびコンテナ化技術におけるLPIC-3認定は、専門家にいくつかの利点を提供できます。分野での知識とスキルを向上させ、より良い雇用機会とより高い給与を得る可能性を高めることができます。 LPIC-3認定も世界的に認識されており、専門家が世界のさまざまな地域で雇用を容易にします。
質問 # 115
Virtualization of which hardware component is facilitated by CPUs supporting nested page table extensions, such as Intel Extended Page Table (EPT) or AMD Rapid Virtualization Indexing (RVI)?
正解：E
質問 # 116
Which of the following resources can be limited by libvirt for a KVM domain? (Choose two.)
正解：A、B
解説：
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.
References:
* libvirt: Domain XML format
* CPU Allocation
* Memory Allocation
* Hard drives, floppy disks, CDROMs
質問 # 117
Which of the following devices exist by default in an LXC container? (Choose three.)
正解：A、B、E
質問 # 118
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?
正解：
解説：
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.
質問 # 119
Which of the following services can QEMU provide in a user network? (Choose three.)
正解：A、D
解説：
QEMU can provide some network services in a user network, which is a mode of networking that does not require any administrator privilege to run. The user network uses the SLIRP TCP/IP emulator to create a virtual NAT'ted subnet, with a DHCP server started by QEMU that gives out IP addresses to the guest machines and puts the host on 10.0.2.21. QEMU can also provide a TFTP server in the user network, which can be used to boot the guest machines from a network image. The TFTP server can be configured with the - tftp option2. QEMU does not provide BGP, CIFS, or AppleTalk services in the user network. BGP is a routing protocol that is used to exchange routing information between autonomous systems on the Internet3. CIFS is a file-sharing protocol that is used to access files and printers on a network4. AppleTalk is a deprecated network protocol suite that was used by Apple devices5. These services require more advanced networking features than the user network can offer, such as bridging, routing, or tunneling.
:
Documentation/Networking - QEMU
QEMU/Networking - Wikibooks, open books for an open world
Border Gateway Protocol - Wikipedia
Common Internet File System - Wikipedia
AppleTalk - Wikipedia
質問 # 120
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