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EMC Symmetrix Solutions Design Exam for Technology Architects Sample Questions:

1. When does the ACOFW behavior apply in a TimeFinder/Snap environment?

A) All writes to the virtual device
B) All writes to the source device
C) Writes to protected tracks on the source device
D) Writes to protected tracks on the virtual device

2. What is a supported mode combination for disk-based Cascaded SRDF?

A) First leg - SRDF/S Second leg - SRDF/S
B) First leg - SRDF/S Second leg - SRDF/A
C) First leg - SRDF/S Second leg - SRDF Adaptive Copy Write Pending Mode
D) First leg - SRDF/A Second leg - SRDF/A

3. What is the EMC recommended network quality for SRDF/S over GigE?

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

4. A Symmetrix VMAX hosts four applications. Each application is assigned a named dynamic cache partition. Two of the partitions are static and two are flexible. The write pending limit for each partition is set to 60%.
What will happen if an application running in a flexible partition reaches the write pending limit set for that partition?

A) Cache will be borrowed from the other flexible partition
B) Host write activity to that partition will be throttled
C) The write pending limit of the partition will be raised until it reaches 80%
D) Cache will be borrowed from the default partition

5. 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 through Friday as shown in the exhibit. During an average business day, the transaction log processes 87 GB worth of data.

Following EMC best practices, what is the minimum number of spindles that must be allocated for optimal transaction log performance?

A) 10
B) 4
C) 2
D) 8

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