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EMC Symmetrix Solutions Expert Exam for Technology Architects Sample Questions:

1. You are planning a migration for 20 VMware ESXi 5.0 servers from a DMX-4 to a new EMC VMAX array. Each server uses VMFS volumes and hosts more than 50 VMs. The customer reports their environment workload tends to be low outside of normal business hours but their service level agreement only permits one 4-hour offline window per quarter. Which tool do you recommend be used to migrate the ESXi servers to the VMAX?

A) Storage vMotion
B) Open Migrator
C) Open Replicator
D) SRDF

2. A company is evaluating SRDF/Star. They are concerned that the RDF daemon represents a single point of failure. How could this concern be addressed?

A) RDF daemons will be deployed on multiple management stations at the workload site. The RDF daemons will cooperate with each other.
B) RDF daemons will be deployed on one management station at each of the three sites. If the workload site RDF daemon fails, one of the RDF daemons from the other two sites will take over.
C) RDF daemon process runs on the Symmetrix array. If the workload site RDF daemon fails, the RDF daemon from one of the other sites will take over.
D) RDF daemon process runs on the Symmetrix array and has built-in redundancy.

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

4. 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) 1544
B) 792
C) 396
D) 386

5. A VMware customer noticed slow performance of virtual machines hosted on an ESXi host. Which value indicates that the ESXi host is overloaded and is causing virtual machine slow performance?

A) Load average = 0.1
B) Load average = 0.5
C) Load average >= 1
D) Load average <1

Solutions: