GOWUKAKU｜IT認定資格の最新の試験問題集（PDF版・無料サンプル問題）を提供しています
Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting exam 試験
最終更新日: 2026/10/10 収録内容確認済 ｜ PDF問題集: 全 250 問収録
【仕様案内】：EX342 問題集（PDF版）は日本語版＆英語版の2言語セットに対応しております（日本語版が準備中の科目は英語版を即時ダウンロードのうえ、日本語版は準備完了次第ご登録メールへ自動送付いたします）。
本ページでは問題集の無料サンプル問題を公開しており、出題形式や現在の理解度を確認することができます。
全250問を収録したPDF版は、EX342 問題集からご確認いただけます。
Question No : 1
An iSCSI target login fails due to CHAP authentication errors.
How do you fix and reattempt the login?
正解:
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Question No : 2
Your system fails to connect to an iSCSI target at boot.
How do you verify and fix the iSCSI session?
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Question No : 3
You must back up data from a LUKS-encrypted device without mounting it.
How do you do a sector-level backup?
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Question No : 4
The system fails to unlock a LUKS partition on boot.
How do you debug the problem?
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Question No : 5
How do you list all encryption slots in a LUKS volume and identify which ones are in use?
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Question No : 6
You want to change the passphrase of a LUKS-encrypted partition.
How do you do this safely?
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Question No : 7
Your encrypted home partition won’t mount.
How do you verify its integrity and fix it?
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Question No : 8
You’ve lost the LUKS passphrase but have a backup key file.
How do you unlock the volume using it?
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Question No : 9
You need to recover the header of a damaged LUKS volume from a backup.
How can you restore the LUKS header safely?
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Question No : 10
An encrypted LUKS volume no longer auto-mounts at boot.
How do you manually decrypt and mount it for data recovery?
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Question No : 11
How do you clone an LVM-based system to another disk for recovery or backup purposes?
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Question No : 12
A PV shows as “unknown” during pvscan.
How can you recover it?
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Question No : 13
You’re unable to extend an LV due to missing free PE.
How do you add another PV and extend the LV?
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Question No : 14
A VG reports “partial mode” after one PV was removed.
How do you correct this?
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Question No : 15
You’ve restored a VG from backup but missing one LV.
How can you try to recover it?
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