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EMC Symmetrix Solutions Design Exam for Technology Architects Sample Questions:

1. You have been assigned to gather performance data for a Microsoft SQL server database that will be migrated to a Symmetrix VMAX. Which Perfmon counter must be measured prior to designing a disk layout?

A) Physical Disk\Avg. Disk sec/Write
B) Logical Disk\Avg. Disk Bytes/sec
C) Physical Disk\Disk Writes/sec
D) Logical Disk\Disk Write Bytes/sec

2. What is the EMC recommended network quality for SRDF/A over GigE?

A) Less than 0.25% packet loss
B) Less than 0.1% packet loss
C) Less than 0.01% packet loss
D) Less than 1% packet loss

3. 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 "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.

Last week, you configured Perfmon to record the current IOPS load as shown in the exhibit. Following EMC best practices, what is the minimum number of spindles required to satisfy the performance needs of the database?

A) 18
B) 10
C) 20
D) 9

4. What is the main benefit of SRDF/A Delta Set Extension?

A) Extends SRFD/A to geo distances by moving data at a more granular level
B) Extends changed blocks into cache for faster resyncs
C) Augments cache-based Delta Sets with disk-based buffering
D) Extends cache-based Delta Set buffering to the local cache of the host

5. The NAR file on a source CLARiiON array is 12 hours of 300 second intervals. You require a minimum of 30 intervals of complete data.
How many 30-minute trace files will need to be collected from the CLARiiON for a Tier Advisor analysis?

A) 6
B) 7
C) 4
D) 5

Solutions: