EMC E20-326 Online Practice Questions and Exam Preparation

EMC E20-326 Online Questions & Answers

• Question 161:

  What is the most important advantage of implementing an ASM, Oracle 11g application on an existing Symmetrix array?

  A. Added volumes to an ASM instance would rebalance all existing Oracle objects automatically.
  B. Added new volumes to the ASM disk group will enable the DBA to issue an ASM rebalance command.
  C. Added volumes to the ASM disk group will automatically re-stripe the data across the target TimeFinder/Clone volumes.
  D. Added volumes to the ASM disk group will re-stripe the data across all target Oracle volumes.
  A. Added volumes to an ASM instance would rebalance all existing Oracle objects automatically.

• Question 162:

  What can happen if an over-subscribed thin pool becomes full?

  A. writes to unallocated extents on TDEV's fail and an I/O error is returned. If the host is booting from SAN, this may also result in a server hang condition.
  B. writes to unallocated extents on TDEV's continue within cache and the virtual pool is automatically expanded to the needed level.
  C. writes to unallocated extents on TDEV's stay in a queued state until the storage administrator can assign additional capacity.
  D. writes to unallocated extents on TDEV's continue within cache and the virtual pool is not automatically expanded to the needed level.
  A. writes to unallocated extents on TDEV's fail and an I/O error is returned. If the host is booting from SAN, this may also result in a server hang condition.

• Question 163:

  A customer is migrating from a DMX to a VMAX. To minimize the outage window Open Replicator hot pull has been selected to perform the migration. Which Open Replicator license is required and which array should it be applied to?

  A. Open Replicator/LM on the VMAX.
  B. Open Replicator/LM on the DMX.
  C. Open Replicator/DM on the VMAX.
  D. Open Replicator/DM on the DMX.
  A. Open Replicator/LM on the VMAX.

• Question 164:

  You are designing a Symmetrix VMAX SRDF/S over GigE solution. The production and remote data centers are 100 kilometers apart. What is the expected write response time delay due to latency?

  A. 0.5 ms
  B. 2 ms
  C. 4 ms
  D. 1 ms
  D. 1 ms

• Question 165:

  Using SRDF/S, In Enginuity 5772 and later, How many concurrent writes can a device receive?

  A. 6
  B. 16
  C. 2
  D. 8
  D. 8

• Question 166:

  Prior to starting an implementation, which tool should be used to automate the data collection on a Windows host?

  A. EMCGrab
  B. EMCReports
  C. E-Lab Advisor
  D. Change Tracker
  B. EMCReports

• Question 167:

  What is one of the benefits of virtual provisioning?

  A. eliminates the need for an auto-provisioned port group.
  B. wide striping distributes I/O across physical disks.
  C. provides newer commands such as the symcfg command.
  D. reduces return on investment.
  B. wide striping distributes I/O across physical disks.

• Question 168:

  You are assigned to design a storage solution for a customer's Oracle OLTP environment. The current configuration has performance issues. Users have complained about slow response. What knowledge about a typical Oracle OLTP workload will help in the redesign of the storage environment so that it runs more optimally?

  A. Database tables and indexes are characterized by a large number of random I/Os. Redo logs are characterized by a large number of sequential I/Os.
  B. Redo logs are characterized by a large number of random I/Os. Database tables and indexes are characterized by a large number of sequential I/Os.
  C. Database tables, indexes, and redo logs are all characterized by a large number of sequential I/Os.
  D. Database tables, indexes, and redo logs are all characterized by a large number of random I/Os.
  A. Database tables and indexes are characterized by a large number of random I/Os. Redo logs are characterized by a large number of sequential I/Os.

• Question 169:

  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 through Friday as shown in the exhibit. During an average business day, the transaction log processes 87 GB worth of data.

  

  Following EMC best practices, how many IOPS should be subtracted from the overall write IOPS, when calculating for the database writes?

  A. 386
  B. 396
  C. 792
  D. 1544
  B. 396

• Question 170:

  Refer to the exhibit

  

  What is a characteristic of the proposed configuration recommended by TierAdvisor?

  A. It will use 6% less storage capacity than the current configuration
  B. It will have 51% better response time than the current configuration
  C. It will cost 2% more than the current configuration
  D. For compatibility with FAST the tier allocations must add up to more than 100%
  C. It will cost 2% more than the current configuration