EMC Symmetrix Solutions Expert Exam for Technology Architects (E20-816) Free Practice Test
Question 1
You are designing a Symmetrix VMAX Virtual Provisioning solution for a VMware vSphere environment. Storage allocation must be guaranteed for some mission critical virtual machines. What format should you recommend when creating virtual disks for these mission critical virtual machines?
Correct Answer: B
Question 2
A company has a VMware vSphere 5.0 ESXi host using NUMA. This host is experiencing poor performance. Which BIOS settings on the ESXi host could help alleviate this performance issue?
Correct Answer: C
Question 3
A customer wants to configure a virtual machine that can directly access PCI hardware I/O devices such as Network Interface Controller or Host Bus Adapter. Which CPU virtualization feature will you use to achieve the objective?
Correct Answer: A
Question 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 "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.
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 43 GB worth of data.
Following EMC best practices, which discount can be taken from the overall write IOPS, when calculating for the database writes?
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 "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.
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 43 GB worth of data.
Following EMC best practices, which discount can be taken from the overall write IOPS, when calculating for the database writes?
Correct Answer: B
Question 5
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 "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.
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 43 GB worth of data.
Following EMC best practices, what is the minimum number of spindles that must be allocated for optimal transaction log performance?
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 "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.
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 43 GB worth of data.
Following EMC best practices, what is the minimum number of spindles that must be allocated for optimal transaction log performance?
Correct Answer: D
Question 6
A company is investigating memory issues with a VMware vSphere implementation. How would the company determine if there are memory issues at the host level when monitoring through a vSphere vCenter Server?
Correct Answer: B
Question 7
Performance Manager is reporting more than 70% utilization on two VMAX FA ports, but the total IOPS per port is low. What is the likely cause and recommended resolution for the high FA utilization?
Correct Answer: B
Question 8
Refer to the exhibit.
In the SRDF/Star environment shown in the exhibit, what is the result of issuing the symstar halt command from the host at the workload site?
In the SRDF/Star environment shown in the exhibit, what is the result of issuing the symstar halt command from the host at the workload site?
Correct Answer: A
Question 9
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?
Correct Answer: C