Lpi LPIC-3 Exam 305: Virtualization and Containerization (305-300日本語版) (305-300日本語) Free Practice Test
Question 1
クラウド管理ツールは主に何に使用されますか?
Correct Answer: A
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Question 2
XenStore と対話するために使用されるツールは次のどれですか?
Correct Answer: D
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Question 3
ユーザーデータから直接cloud-init処理できるデータの種類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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Question 4
commandvagrant init の目的は何ですか?
Correct Answer: C
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Question 5
準仮想化マシンではなく完全仮想化マシンを作成するには、Xen ゲスト ドメインの構成ファイルのオプション ビルダーでどの値を設定する必要がありますか?
Correct Answer:
builder = "hvm"
Explanation:
In Xen virtualization, guest domains can be created using either paravirtualization (PV) or hardware-assisted full virtualization, also known as HVM (Hardware Virtual Machine). According to official Xen documentation, the builder option in a Xen guest domain configuration file determines the type of virtualization used when creating a virtual machine.
To create a fully virtualized (HVM) guest, the configuration file must explicitly set the value of the builder option to "hvm":
builder = "hvm"
This instructs the Xen toolstack to use hardware-assisted virtualization features provided by the CPU, such as Intel VT-x or AMD-V, allowing unmodified guest operating systems to run. Fully virtualized guests behave like physical machines and can run operating systems that are unaware of Xen.
If the builder option is omitted or set to the default paravirtualized builder, Xen expects a PV-capable kernel, which requires guest operating system modifications. HVM guests, by contrast, rely on device emulation and hardware virtualization support.
Virtualization documentation clearly distinguishes between PV and HVM guests and identifies builder =
"hvm" as the required configuration for full virtualization. This setting is fundamental when deploying operating systems such as Windows or standard Linux distributions without Xen-specific kernels.
Therefore, the correct and documented value is builder = "hvm".
Explanation:
In Xen virtualization, guest domains can be created using either paravirtualization (PV) or hardware-assisted full virtualization, also known as HVM (Hardware Virtual Machine). According to official Xen documentation, the builder option in a Xen guest domain configuration file determines the type of virtualization used when creating a virtual machine.
To create a fully virtualized (HVM) guest, the configuration file must explicitly set the value of the builder option to "hvm":
builder = "hvm"
This instructs the Xen toolstack to use hardware-assisted virtualization features provided by the CPU, such as Intel VT-x or AMD-V, allowing unmodified guest operating systems to run. Fully virtualized guests behave like physical machines and can run operating systems that are unaware of Xen.
If the builder option is omitted or set to the default paravirtualized builder, Xen expects a PV-capable kernel, which requires guest operating system modifications. HVM guests, by contrast, rely on device emulation and hardware virtualization support.
Virtualization documentation clearly distinguishes between PV and HVM guests and identifies builder =
"hvm" as the required configuration for full virtualization. This setting is fundamental when deploying operating systems such as Windows or standard Linux distributions without Xen-specific kernels.
Therefore, the correct and documented value is builder = "hvm".
Question 6
Cloud-init の目的は何ですか?
Correct Answer: B
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 7
パッカーとは何ですか?
Correct Answer: B
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 8
Xen ゲスト ドメインの仮想 CD-ROM ドライブ内のメディアを変更する xl のサブコマンドはどれですか?
(パスやパラメータを指定せずにサブコマンドのみを指定します。)
解決：
block-attach - または - xl cd-insert - または - cd-eject - または - xl cd-eject - または - cd-insert - または - xl block-attach - または - block-detach - または - xl block-detach 指定されたソリューションが正しいかどうかを判断します。
(パスやパラメータを指定せずにサブコマンドのみを指定します。)
解決：
block-attach - または - xl cd-insert - または - cd-eject - または - xl cd-eject - または - cd-insert - または - xl block-attach - または - block-detach - または - xl block-detach 指定されたソリューションが正しいかどうかを判断します。
Correct Answer: B
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 9
完全仮想化に関して正しい記述はどれですか? (正しい回答を 2 つ選択してください)
Correct Answer: C,D
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Question 10
次のツールのうち、VM のプロビジョニングとイメージの作成に通常使用されないものはどれですか。
Correct Answer: D
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