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EMC Symmetrix Solutions Expert Exam for Technology Architects Sample Questions:

1. Which change in a Symmetrix VMAX workload will typically result in a decrease in the hit rate?

A) Decrease in the percentage of write I/Os
B) Decrease in the I/O size
C) Spreading the workload over more devices
D) Increase in the percentage of sequential reads

2. A customer has a Symmetrix VMAX array. Symmetrix back-end utilization is about 70%. They would like to increase their workload by 10%. What would be the expected change in the response time due to the increased workload?

A) Greater than 10%
B) 10%
C) Remain the same
D) Less than 10%

3. Refer to the exhibit.

A customer engaged technical support for a performance issue with their application. The exhibit shows IOPS for the four FA processors utilized to connect the HPUX host to the storage. The FA processors are dedicated to the application. All logical volumes, ports and storage are part of a single masking view. What should the customer change to enhance performance of the host?

A) Modify host LVM configuration
B) Add FA ports
C) Correct multipath configuration
D) Add FA processor capacity

4. When selecting Symmetrix data protection on a VMAX, why would you propose CHAP?

A) Prevents spoofing at the fiber channel port level
B) Prevents encryption at the iSCSI port level
C) Provides port security authentication for iSCSI connectivity
D) Provides port security authentication for SRDF connectivity

5. A data warehouse team is reporting poor performance on their batch reports. The database runs on a Solaris host connected to a DMX-4 array with Fibre Channel drives sized to support a sequential read workload. Which metrics in Performance Manager would be useful in diagnosing the performance issue?

A) Read hit %, Tracks not used per second, Average sampled read time, I/O per second
B) I/O per second, KBytes read per second, prefetched tracks per second, Tracks not used per second
C) KBytes read per second, Prefetched tracks per second, Read %, Write %
D) Average sampled read time, KBytes read per second, I/O per second, Read hit %

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