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EMC E20-816 Exam Syllabus Topics:

EMC Symmetrix Solutions Expert Exam for Technology Architects Sample Questions:

1. What is the device write pending limit of the total writeable cache for a Symmetrix VMAX ?

A) 12%
B) 10%
C) 8%
D) 5%

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 daemon process runs on the Symmetrix array and has built-in redundancy.
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 daemons will be deployed on multiple management stations at the workload site. The RDF daemons will cooperate with each other.
D) 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.

3. A company is in the process of setting up a VMware vSphere 5.0 ESXi host. Which power management setting should be set on the physical host BIOS that the ESXi hypervisor will be installed on?

A) Hardware Controlled Mode
B) Hypervisor Controlled Mode
C) O/S Controlled Mode
D) User Controlled Mode

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) 396
B) 386
C) 792
D) 1544

5. Refer to the exhibit.

A customer is planning to replace an end-of-lease DMX-2500 with a new two engine VMAX. Because the customer has reported some performance issues with the DMX, you have been asked to analyze the DMX and recommend the VMAX configuration. This customer's plan is for 10% growth over the next 24 months. The DMX has 256GB cache and 380 x 300GB-10K FC drives. To avoid past performance issues but keep the cost low, which configuration should be recommended?

A) 424 x 300GB-10K FC drives
B) 424 x 300GB-15K FC drives
C) 212 x 600GB-10K FC drives
D) 318 x 450GB-15K FC drives

Solutions: