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EMC E20-326 Exam Syllabus Topics:

EMC Symmetrix Solutions Design Exam for Technology Architects Sample Questions:

1. You are designing an SRDF over GigE solution. What is a consideration to maximize TCP connection scaling?

A) The speed limit should be set on all GigE ports on both the source and target arrays.
B) All GigE ports on the source array should be able to see all GigE ports on the target array.
C) Jumbo frames must be enabled on the all GigE ports on both the source and target arrays.
D) The MTU size must be hard set in the bin file on both the source and target arrays.

2. 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, how many IOPS should be subtracted from the overall write IOPS, when calculating for the database writes?

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

3. A Symmetrix VMAX has been configured with Dynamic Cache Partitioning. What criterion must be met for a cache slot to be eligible for donation?

A) The fall through time must be greater than the donation age.
B) There must be cache slots available in the default partition.
C) The fall through time must be less than the donation age.
D) The cache slot must belong to a static partition.

4. What is the maximum number of wavelengths that can be multiplexed on a single optical
fiber over CWDM?

A) 16
B) 160
C) 8
D) 32

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

Solutions: