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EMC Symmetrix Solutions Expert Exam for Technology Architects Sample Questions:

1. 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 ratio in Performance Manager metrics would be most useful in diagnosing the performance issue?

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

2. In a Cascaded Dynamic SRDF environment, Customer is experiencing performance issues at Site-A. To immediately correct the issue, a command was issued to vary the RF-ports offline between Site-B and Site-C. A query of the RA-Group between Site-B and Site-C shows the link is in a suspended state. There are concerns that when the RF-ports are brought back online the RA-Group will resume replication and recreate performance issue at Site-A. What action can be taken to ensure replication does not resume when RF-ports are brought back online?

A) On Site-B perform delete-pair for all devices in RA-Group.
B) On Site-C perform delete-pair for all devices in RA-Group.
C) On Site-C execute delete Device-Group.
D) On Site-B perform half-delete for all devices in RA-Group

3. 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) 1544
C) 386
D) 792

4. Your customer has an Oracle 11g environment that requires a database to be recoverable within a few minutes over an extended distance. Which best practice would you recommend to ensure recoverability on the target side?

A) Enable SRDF/AR for full source-to-target synchronization at the bunker site
B) Enable SRDF/S for full source-to-target synchronization. After the RDF split, apply the redo logs to ensure recoverability
C) Using SRDF/A across the RDF link, apply the redo logs on the target side after the split
D) Enable Archive Log mode on the production database; enable SRDF/A across the RDF link; split the RDF link (consistent); and apply the archive logs on the target side.

5. You are architecting a VMware virtualized Exchange 2010 solution that will include replication of the Exchange volumes using VMware snapshots. Which type of storage should be presented to the VMs in order to facilitate replication?

A) Network File System
B) Physical Mode RDM
C) VMFS
D) Virtual Mode RDM

Solutions: