Lpi LPIC-3 Exam 305: Virtualization and Containerization (305-300日本語版) - 305-300日本語 Exam Practice Test
libvirt を使用したネットワークに関して正しいのは次のどれですか?
Correct Answer: E
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クラウド管理ツールは主に何に使用されますか?
Correct Answer: D
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次のコマンドを 2 回連続して実行するとどうなりますか?
docker run -tid -v data:/data debian bash
docker run -tid -v data:/data debian bash
Correct Answer: E
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どのようなシナリオで Vagrant が開発者にとって最も有益となるでしょうか?
Correct Answer: C
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インフラストラクチャ・アズ・コード (IaC) アプローチで知られているクラウド管理ツールはどれですか (該当するものをすべて選択してください)。
Correct Answer: A,B,C,D
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LXC コンテナにデフォルトで存在するデバイスは次のうちどれですか? （3つお選びください。）
Correct Answer: A,B,D
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xl ツール スタックのグローバル構成ファイルと同じものは何ですか?
Correct Answer:
/etc/xen/xl.conf
Explanation:
Thexl toolstackis the modern command-line management interface used for administering theXen hypervisor
, replacing the older xm toolstack. According to official Xen virtualization documentation, theglobal configuration filefor the xl toolstack is/etc/xen/xl.conf.
This configuration file definesdefault behaviors and policiesfor the xl management commands. It allows administrators to configure global settings such as default CPU scheduling behavior, memory handling, device model settings, and other operational parameters that affect how virtual machines (domains) are managed on a Xen host. These settings apply system-wide and influence the behavior of all xl commands unless overridden by per-domain configuration files.
The file /etc/xen/xl.conf is read by the xl toolstack at runtime and is part of the standard Xen configuration directory structure. Individual virtual machine definitions are typically stored as separate configuration files in
/etc/xen/, but xl.conf serves as thecentral, global configuration reference.
Virtualization notes emphasize that proper configuration of xl.conf is important for performance tuning, stability, and compliance in Xen-based environments. While many default installations function correctly without modifying this file, enterprise deployments often customize it to align with workload requirements and hardware capabilities.
Therefore, the correct and documented global configuration file for the xl toolstack is/etc/xen/xl.conf.
Explanation:
Thexl toolstackis the modern command-line management interface used for administering theXen hypervisor
, replacing the older xm toolstack. According to official Xen virtualization documentation, theglobal configuration filefor the xl toolstack is/etc/xen/xl.conf.
This configuration file definesdefault behaviors and policiesfor the xl management commands. It allows administrators to configure global settings such as default CPU scheduling behavior, memory handling, device model settings, and other operational parameters that affect how virtual machines (domains) are managed on a Xen host. These settings apply system-wide and influence the behavior of all xl commands unless overridden by per-domain configuration files.
The file /etc/xen/xl.conf is read by the xl toolstack at runtime and is part of the standard Xen configuration directory structure. Individual virtual machine definitions are typically stored as separate configuration files in
/etc/xen/, but xl.conf serves as thecentral, global configuration reference.
Virtualization notes emphasize that proper configuration of xl.conf is important for performance tuning, stability, and compliance in Xen-based environments. While many default installations function correctly without modifying this file, enterprise deployments often customize it to align with workload requirements and hardware capabilities.
Therefore, the correct and documented global configuration file for the xl toolstack is/etc/xen/xl.conf.
libvirt が構成データを保存するために使用するファイル形式はどれですか?
Correct Answer: B
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Linux ベースの仮想化環境で一般的に使用されているディスク イメージ形式はどれですか (該当するものをすべて選択してください)。
Correct Answer: A,B,C,D
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