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| Section | Objectives |
|---|---|
| Storage Clustering and Reliability | - Clustered file systems - Data integrity and redundancy mechanisms - Failover storage design |
| Network Storage Integration | - iSCSI target and initiator configuration - Multipath I/O configuration and management - NFS in high availability environments |
| Cluster Storage and Replication | - DRBD configuration and replication - Distributed storage and redundancy strategies - Shared storage concepts |
| High Availability Cluster Management | - Resource agents and fencing (STONITH) - Corosync and cluster communication - Pacemaker configuration and management - Cluster architecture and concepts |
1. GlusterFS では、物理メディア障害から回復する目的は何ですか?
A) ストレージ クラスター構成を再構築します。
B) 障害が発生したメディア上の破損したデータを修復します。
C) 故障した物理メディアを交換します。
D) バックアップからデータを復元します。
2. keepalived では、設定オプション sorry_server によって何が設定されますか?
A) 新しい接続を割り当てるべきではないバックエンド サーバーのアドレス。
B) 実際のサーバーが利用できない場合にリクエストがリダイレクトされるサーバーのアドレス。
C) 残りの構成に関係なく、シリアル操作ラウンドロビン アルゴリズムによって常にスケジュールされるサーバーのホスト名。
D) Host: ヘッダーのない受信 HTTP リクエストをバックエンド サーバーに転送する前に割り当てられるデフォルトの仮想ホスト。
E) 過去に過負荷になり、優先度を下げてスケジュールする必要があるバックエンド サーバーのアドレス。
3. 次のどれが Pacemaker コンポーネントですか? (正しい回答を 2 つ選択してください。)
A) キープアライブ
B) 迷惑メール
C) ccmd
D) フェンサー
E) おそらく
4. ネットワークボンディングとは何ですか?
A) トラフィック分離のためにネットワーク インターフェイス上で VLAN を構成します。
B) 2 つのネットワーク間の安全な接続を確立します。
C) 高可用性のために冗長ネットワーク接続を有効にします。
D) 複数のネットワーク インターフェイスを 1 つの論理インターフェイスに結合します。
5. 障害が発生した後、RAID デバイスをどのように回復できますか?
A) RAID デバイスを再フォーマットし、アレイを最初から再構築します。
B) /proc/sys/dev/raid/ ファイルを変更してアレイを復元します。
C) アレイ上で fsck ユーティリティを実行して、ディスク エラーを修正します。
D) 障害が発生したディスクを交換し、mdadm --rebuild コマンドを実行します。
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: B | Question # 3 Answer: B,E | Question # 4 Answer: D | Question # 5 Answer: D |
LPIC-3 Exam 306: High Availability and Storage Clusters
LPIC-3 Exam 300: Mixed Environments, version 3.0
LPIC-3 Exam 300: Mixed Environments, version 3.0 (300-300日本語版)
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