EMC E20-326 Online Practice Questions and Exam Preparation

EMC E20-326 Online Questions & Answers

• Question 51:

  What is a supported mode combination for disk-based Cascaded SRDF?

  A. First leg - SRDF/S Second leg - SRDF/A
  B. First leg - SRDF/A Second leg - SRDF/A
  C. First leg - SRDF/S Second leg - SRDF Adaptive Copy Write Pending Mode
  D. First leg - SRDF/S Second leg - SRDF/S
  A. First leg - SRDF/S Second leg - SRDF/A

• Question 52:

  A TimeFinder/Clone session is created using the Copy option. When will data be copied?

  A. As soon as the session is activated
  B. On a write to a protected track on the source
  C. On every write to a track on the source
  D. As soon as the session state reaches Copy in Progress
  A. As soon as the session is activated

• Question 53:

  A customer needs to have copies of their production database accessible to their test and development team. The production data resides on a VMAX and test and development resides on a CLARiiON. Which tool is appropriate for data distribution?

  A. Open Replicator
  B. TimeFinder
  C. SRDF
  D. Open Migrator
  A. Open Replicator

• Question 54:

  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 through 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?

  A. 196
  B. 392
  C. 597
  D. 989
  A. 196

• Question 55:

  Which action is part of the analysis and design of a synchronous data protection solution for a Symmetrix VMAX implementation?

  A. Use STP Navigator to examine the BTP data and determine if the data is valid for further analysis.
  B. Use Performance Analyzer and EMC Control Center repository data to determine the peak data period and bandwidth required.
  C. Use Symmetrix Performance Analyzer to determine the peak data requirement based on STP data collected from the source array for a 24 hour sample period.
  D. Use Change Tracker to determine the bandwidth required from the DELTA data set for a given interval.
  A. Use STP Navigator to examine the BTP data and determine if the data is valid for further analysis.

• Question 56:

  A customer wants to migrate a database using Open Replicator. They have decided to do a hot pull operation to minimize the outage window. What should the customer do to prevent data corruption?

  A. Mask the control devices to the host so both devices can be updated.
  B. Unmount the remote device.
  C. Wait to zone control devices until data is copied.
  D. Mask the remote devices after data is copied
  B. Unmount the remote device.

• Question 57:

  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 as shown in the exhibit. Following EMC best practices, what is the minimum number of spindles required to satisfy the performance needs of the database?

  A. 9
  B. 10
  C. 18
  D. 20
  C. 18

• Question 58:

  What is the maximum data change rate for which you would recommend TimeFinder/Snap over TimeFinder/Clone as a local replication solution?

  A. 10%
  B. 50%
  C. 70%
  D. 30%
  D. 30%

• Question 59:

  How many buffer to buffer credits does a Symmetrix VMAX SRDF Fibre Channel port have?

  A. 20
  B. 4
  C. 7
  D. 12
  A. 20

• Question 60:

  Which database workload is suitable for an EFD configuration?

  A. Database objects with a random read workload
  B. Oracle online redo logs and archive log files
  C. DSS database with high sequential write activity
  D. Database objects with pure sequential workload
  A. Database objects with a random read workload