EMC Symmetrix Solutions Expert Exam for Technology Architects 認定 E20-816 試験問題:

1. Click on the calculator icon in the upper left corner. A new Oracle database is being deployed on a VMAX array. The DBA requests 4TB of usable capacity to be managed by Oracle ASM. This includes 2TB for primary data and 1TB for Oracle Flashback capacity. Devices will be provisioned from a single VP pool and will be fully pre-allocated. No remote replication is planned. Which configuration will provide the best performance and availability for the database?

A) 14 x 220GB devices for Primary Data and Flashback
B) 2 x 1TB meta devices for Primary Data, 1 x 1TB device for Flashback
C) 32 x 64GB devices for Primary Data, 16 x 64GB devices for Flashback
D) 3 x 1TB meta devices for Primary Data and Flashback

2. Click on the calculator icon in the upper left corner. Refer to the exhibit.

You are designing the Symmetrix VMAX architecture for a DAS-to-SAN SQL Server migration. Currently all user databases reside on a single locally attached disk enclosure, mounted to "N:\". You have decided on RAID-5 protected 15,000 RPM drives for the new SQL database and RAID-1 for the transaction log.
Last week, you configured Perfmon to record the current IOPS load of the databases during the 8-hour business day, Monday thru Friday as shown in the exhibit. During an average business day, the transaction log processes 87 GB worth of data.
Following EMC best practices, which discount can be taken from the overall write IOPS, when calculating for the database writes?

A) 396
B) 386
C) 792
D) 1544

3. For a 2 engine VMAX, what is the minimum number of Enterprise Flash Drives required to ensure balanced performance across the backend excluding hot spares?

A) 12
B) 8
C) 16
D) 4

4. When setting up Symmetrix Access Control, what must be completed before all hosts have been granted Access Control rights (via the Unknown Group)?

A) The Administrator Group must be setup using SymCLI.
B) The Administrator Group must be setup using SymmWin.
C) The license file must be registered using SymCLI.
D) The license file must be registered using SymACL.

5. A customer has a Symmetrix VMAX array shared between several different business groups. Each of the hosts has Solutions Enabler installed to support TimeFinder operations. There is a requirement that each business group can only manage its assigned LUNs. Which security technology would enable that requirement?

A) Symmetrix Access Controls
B) Fibre Channel ID Lockdown
C) Symmetrix Authorization
D) Access Logix

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