EMC E20-326 Online Practice Questions and Exam Preparation

EMC E20-326 Online Questions & Answers

• Question 1:

  You are designing a new disaster recovery solution with VMAX arrays. During the initial project kick-off meeting, the customer reports their environment can tolerate five minutes or less of data recovery following a disaster but have not yet determined the maximum allowable downtime for their applications.

  The customer asks which remote replication methods you recommend for their environment. What do you recommend?

  A. Defer making a recommendation until the application RTO is known.
  B. Recommend the disaster recovery solution as described in the Sales Order.
  C. Defer making a recommendation until the application RPO in known.
  D. Recommend the disaster recovery solution described in the Statement of Work.
  A. Defer making a recommendation until the application RTO is known.

• Question 2:

  A customer has implemented a Symmetrix VMAX storage array with FAST VP as a consolidation target for four older storage systems. The storage array is running the current target Enginuity 5875 code. Pool allocation warning levels are set for 65% for the Fibre Channel pool.

  If all data migrated to the array is bound to the Fibre Channel pool, how should the configuration of the pool reserve capacity be set?

  A. 1% EFD, 35% FC, 1% SATA
  B. 10% EFD, 10% FC, 10% SATA
  C. 35% EFD, 35% FC, 35% SATA
  D. 90% EFD, 90% FC, 90% SATA
  A. 1% EFD, 35% FC, 1% SATA

• Question 3:

  A customer wants to protect production data using local and remote replication on a pair of VMAX arrays located 100 km apart. Both VMAX arrays are fully configured with virtually provisioned thin volumes. The customer has a near zero

  Recovery Point Objective (RPO) and wants to replicate the production volumes to the remote array, while maintaining a separate backup copy of the production data on the local array.

  Which replication options do you recommend they implement?

  A. TimeFinder/Snap and SRDF/A.
  B. TimeFinder/Clone and SRDF/S.
  C. TimeFinder/Mirror and SRDF/S.
  D. TimeFinder/Clone and SRDF/DM.
  B. TimeFinder/Clone and SRDF/S.

• Question 4:

  What is the EMC recommended network quality for SRDF/S over GigE?

  A. Less than 0.01% packet loss
  B. Less than 0.1% packet loss
  C. Less than 0.25% packet loss
  D. Less than 1% packet loss
  A. Less than 0.01% packet loss

• Question 5:

  What is the EMC recommended network quality for SRDF/A over GigE?

  A. Less than 0.1% packet loss
  B. Less than 0.01% packet loss
  C. Less than 0.25% packet loss
  D. Less than 1% packet loss
  A. Less than 0.1% packet loss

• Question 6:

  A proposed SRDF/S solution was modeled with BCSD. The model assumed that the source array had 4 GigE ports. The RA Utilization chart shows the maximum utilization is at 70%. How many GigE ports should be recommended to ensure a successful implementation?

  A. 4
  B. 5
  C. 6
  D. 8
  C. 6

• Question 7:

  A customer is using Virtual Provisioning on a Symmetrix VMAX that is being shared for production and non-production workloads. What can be used to separate the different workloads?

  A. Dynamic Cache Partitioning
  B. Symmetrix Priority Controls
  C. Write Pending Limit
  D. FAST VP
  A. Dynamic Cache Partitioning

• Question 8:

  What is the effect of block size on response times in an SRDF/S environment?

  A. Smaller block size applications experience lower response times
  B. Larger block size applications experience lower response times
  C. Larger block size applications have the same response times as smaller block size applications
  D. Block size has no effect on response times
  A. Smaller block size applications experience lower response times

• Question 9:

  A customer is planning a new Microsoft Exchange 2010 environment on their Symmetrix VMAX. The customer wants to know how they can backup volumes containing active mailbox databases. What advice should be provided to the customer?

  A. Use the VSS plug-in that ships with Exchange 2010 or Replication Manager.
  B. Only Replication Manager or a third-party Exchange-aware VSS-based application can be used.
  C. Only the VSS plug-in that ships with Exchange 2010 can be used.
  D. Create Custom backup scripts.
  A. Use the VSS plug-in that ships with Exchange 2010 or Replication Manager.

• Question 10:

  You are designing an SRDF over GigE solution. What is a consideration to maximize TCP connection scaling?

  A. All GigE ports on the source array should be able to see all GigE ports on the target array
  B. The MTU size must be hard set in the bin file on both the source and target arrays
  C. Speed limit should be set on all GigE ports on both the source and target arrays
  D. Jumbo frames must be enabled on the all GigE ports on both the source and target arrays
  A. All GigE ports on the source array should be able to see all GigE ports on the target array