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EMC Isilon Solutions and Design Specialist Exam for Technology Architects (E20-555中文版) Sample Questions:

1. 您第一次見到客戶。他們解釋說，他們目前的 NAS 環境無法滿足他們的需求。您需要確保 Isilon 能夠很好地滿足他們的需求。
什麼是好的資格預審問題？

A) 哪些應用程式存取此儲存？
B) 您的客戶有幾個網路卡？
C) 您是否使用 KVM 來存取您的儲存空間？
D) 您的資料中心有什麼類型的機架？

2. 潛在客戶需要 800 TB 的可用容量來儲存其健康診所網路的醫學影像。IT 部門人員有限，目前管理其他供應商的四個儲存陣列。在與 IT 總監會面時，您了解到該公司正在考慮使用 EMC 競爭對手提供的解決方案，使用兩個現有陣列和兩個新陣列。
Isilon 的哪些功能可以為客戶帶來更好的投資報酬率？

A) 與傳統的叢集檔案系統解決方案相比，Isilon 的檔案系統開銷減少了6%-12%。透過單一檔案系統以及用於磁碟機和節點故障的虛擬容量，Isilon 使用率通常為80%或更高。Isilon 利用率通常為80% 或更高由於使用單一檔案系統以及磁碟機和節點故障的虛擬容量。
B) Isilon 的開銷比傳統叢集檔案系統低15%-20%。根據IDC 研究，Isilon 利用率比傳統競爭對手高出近50%。Isilon QOS 空間和多個節點池可確保高達80% 利用率時的一致性能。
C) 使用單一檔案系統以及用於磁碟機和節點故障的虛擬容量，Isilon 利用率通常為80% 或更高。OneFS 壓縮可在叢集內產生更高的有效容量。與傳統叢集檔案系統相比，傳統群集檔案系統需要4%-10% 的內部開銷Isilon 虛擬容量。
D) 前向糾錯開銷比傳統RAID 低7%。Isilon 的檔案系統開銷比傳統叢集檔案系統解決方案低6%-12%。根據IDC 研究，與傳統競爭對手相比，Isilon 將IT 生產力提高了近50% 。

3. 磁碟塊的快取在 Isilon 節點上的什麼位置進行​​？

A) L2
B) L1
C) CPU
D) RAID

4. Isilon 儲存管理員在攝取 200 TB 檔案資料後擔心容量問題。他們最近向叢集添加了更多節點，現在希望盡快對其進行自動平衡。
平均 24 小時內的集群利用率百分比為：
* 00:00 - 08:59 期間 45%
* 09:00 - 17:00 期間 60%
* 17:01 - 23:59 期間為 85%
管理員希望將集群利用率保持在最低水準。應使用哪些影響策略設定來快速完成作業而不影響生產工作負載？

A) 中、低、低
B) 中、中、低
C) 高、高、低
D) 高、中、暫停

5. 作為新 Isilon 群集部署實施規劃的一部分，您將與公司安全團隊會面。首席安全分析師要求您討論 Isilon 叢集上的身份驗證來源。
您需要準備回答哪些有關 Isilon 支援的身份驗證來源的客戶問題？

A) 您使用什麼機制進行 NFS 驗證？您支援 Novell 目錄服務嗎？支援什麼風格的 LDAP？
B) 叢集是否符合 x.400 標準？有哪些防火牆規則可以防止資料外洩？是否有針對存取區域配置變更的稽核追蹤？
C) 您使用什麼機制進行 NFS 驗證？您是否支援多個 AD 網域？支援哪些版本的 LDAP？
D) 您是否在 AD 環境中使用 UNIX 檔案服務？是否支援 NIS+ 進行 NFS 驗證？是否支援連接到 AD 網域的多個存取區域？

Solutions: