E20-322 Exam考古題
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1. A customer is deploying a new Microsoft Exchange environment and has requested assistance with the associated disk design. They are deploying Exchange for 850 users with an average of 3 I/Os per user. They expect a 60% read and 40% write distribution.
The customer would like to know the number of disks required for both RAID 5 and RAID 1/0 DMX configurations with 15k rpm drives. How many disks are required for each configuration type?
A. RAID 5 28 and RAID 1/0 18
B. RAID 5 31 and RAID 1/0 20
C. RAID 5 38 and RAID 1/0 24
D. RAID 5 43 and RAID 1/0 28
Answer: A
2. A customer plans to create two regional offices that are between 800 and 2,000 km away from their main data center. Each regional office will have a data center that will serve four to six branch offices between 30 and 50 km away.
At the close of business each evening the customer will shut down the application and transmit changes to each regional office. The amount of new information sent from the head office each night will vary from 0.5 and 1.5 GB. Later each night, an application at the regional offices will read the data from the head office and generate approximately 50 MB of new rate information appropriate for its branch offices. What is the most cost-effective EMC solution?
A. 1. Configure CLARiiON arrays in each office.
2. Use MirrorView/A and T3 networks for all data transfers.
B. 1. Configure Symmetrix arrays in the head office and CLARiiONs in the regional offices.
2. Use OC-3 networks to transmit the same master copy of data from the head office to the regional offices using Open Replicator.
3. At the regional offices, create a snap of the data received and transmit the changes to the branch offices using SAN Copy.
C. 1. Configure Symmetrix arrays at all the main data centers and CLARiiONs at the regional and branch offices.
2. Use OC-3 network links between the main data centers.
3. Use DS-3 between the regional and branch offices.
4. Use SRDF/DM for data transfer in each case.
D. 1. Configure Symmetrix arrays at the head office and regional offices.
2. Configure CLARiiONs at the branch offices.
3. Use SRDF/DM and T1 network links between the head office and regional offices.
4. Use Open Replicator incremental offline push to distribute rate information to the branch offices using T1 network links.
Answer: D
EMC認證
美國EMC公司推出了EMC Proven E-Infostructure（EMC認證電子信息架構計劃）,起初EMC認證計劃面向企業用戶，某家企業獲得EMC認證，意味著其IT基礎架構已經通過了壹道嚴格的評審，具備某種業務或服務運營能力。企業采用的電子信息架構具有可擴展性，並基於世界領先的企業存儲產品和服務，因此可以向客戶提供最佳信息基礎架構。
EMC 認證計劃根據功能分為五個檔次，企業可以選擇最能滿足自己需要的層次。如果今後業務需求發生了變化，可以升級到更高壹層。在每壹個更高的層面上，企業都可以獲得更大的營銷、培訓和促銷組合效益。所有采用EMC的E-Infostructure(電子信息架構方案)，向客戶提供增值服務的EMC客戶都可以參加這壹認證計劃，包括EMC的CLARiiON客戶，以及Symmetrix存儲、軟件和服務的用戶都有機會參與EMC Proven計劃。
獲得EMC Proven認證的企業即能表明自己擁有強大的信息基礎架構，能夠實現諾言，提供具有高可用性的服務，具有應對信息爆炸性增長的能力。與此同時，通過該認證的企業還能讓自己在基礎架構上的投資滿足現在和未來的需求，並能讓客戶放心，他們的信息資產是有保護的。擁有這些優勢，將使獲得認證的企業變得與眾不同，並從競爭對手中脫穎而出。
到目前為止，已經數百家EMC客戶通過了這壹認證。總之，企業采用EMC E-Infostructure(電子信息架構)產品和方案，進行信息基礎設施建設，並通過EMC Proven認證，就能使自己具有在信息時代駕馭信息的本領，可以讓信息在現在和未來產生源源不斷的商業價值和社會財富。
