EMC Implementation Engineer E20-885 Questions & Answers

• Question 111:

  A customer is asking you for help. They are creating a script that will collect data from the array using CLI from the Control Station. They want to gather information on LUN data consumption including metadata, snapshot and compression.

  Which command will gather this information?

  A. navicli -h spa lun -list -l 0 all

  B. navicli -h spa lun -list -l 0

  C. navicli -h spa getdisk 0_0_0 -all

  D. navicli -h spa getcontrol -all

  Correct Answer: A

• Question 112:

  You are implementing a VNX solution for a Linux-only host environment. The customer tells you that current host performance is poor, and that the new solution should improve it by at least 50%.

  Which tool should you use to begin your investigation?

  A. iostat

  B. Unisphere Analyzer

  C. IOmeter

  D. server_stats

  Correct Answer: A

• Question 113:

  Refer to the exhibit.

  

  During an initial synchronization of a MirrorView/A mirror, the Primary Image data blocks A, B, C, and D are all transferred to the Secondary Image. Before data block E can be sent to the Secondary Image, data block E is updated and becomes data block E'. What information will be shown in the Tracking DeltaMap, Transfer Deltamap,and Secondary Image once the initial synchronization is complete?

  A. Tracking DeltaMap: 1 Transfer DeltaMap: 0 Secondary Image: E

  B. Tracking DeltaMap: 1 Transfer DeltaMap: 1 Secondary Image: E

  C. Tracking DeltaMap: 1 Transfer DeltaMap: 1 Secondary Image: E'

  D. Tracking DeltaMap: 1 Transfer DeltaMap: 0 Secondary Image: E'

  Correct Answer: A

• Question 114:

  Refer to the exhibit.

  

  During an Incremental SAN Copy bulk copy session, on the Source LUN, data blocks A, B, C, and D are all transferred to the Destination LUN. Before data block E can be sent to the Destination LUN, data blocks B and E are updated and become data blocks B` and E`.

  What data will be shown in the Transfer DeltaMap, Tracking DeltaMap, and Destination LUN once the start copy session is complete?

  A. Transfer DeltaMap: 0 Tracking DeltaMap: 1 Destination LUN: E

  B. Transfer DeltaMap: 0 Tracking DeltaMap: 0 Destination LUN: E`

  C. Transfer DeltaMap: 1 Tracking DeltaMap: 1 Destination LUN: E

  D. Transfer DeltaMap: 0 Tracking DeltaMap: 1 Destination LUN: E`

  Correct Answer: B

• Question 115:

  A customer is testing their new MirrorView/A configuration between two EMC VNX. What will be the state

  of a newly created mirror after it is added to a previously synchronized Consistency Group?

  A. Quasi-consistent

  B. Out-of-sync

  C. Synchronized

  D. Consistent

  Correct Answer: A

• Question 116:

  A customer runs Oracle using DAS. They observe intermittent Oracle performance degradation due to data hot spots on the disks. You propose they move Oracle to an EMC VNX with RAID 1/0 LUNs. If the customer implements the proposed configuration, how would Oracle ASM alleviate the customer's hot spots?

  A. The ASM disk group will re-balance all existing Oracle objects automatically.

  B. The Unisphere Agent installed on the Oracle server will re-balance all existing Oracle objects automatically.

  C. ASM will re-stripe the data avoiding the target MirrorView volume hot spots.

  D. ASM with Unisphere will re-stripe the data avoiding the source MirrorView volume hot spots.

  Correct Answer: A

• Question 117:

  An implementation engineer installs a DR solution to protect ten CIFS servers at site A. VNX Replicator will be used to replicate these servers and their shares from Site A to Site B. How many Virtual Data Movers should be configured for the servers to be protected on Site A to ensure maximum portability?

  A. 5

  B. 10

  C. 20

  D. 1

  Correct Answer: B

• Question 118:

  Exchange 2010 has been installed on a virtual machine using RDMs in physical mode. What best practice should be followed when using Replication Manager with Exchange 2010?

  A. Use separate volumes for each database

  B. Use PowerPath or MPIO for multipathing

  C. Create separate partitions for the log and database volumes

  D. Use circular logging to limit transaction log sizes

  Correct Answer: A

• Question 119:

  A customer plans migrate several Exchange 2010 databases to a new RAID 5 storage pool on an EMC VNX. The VNX has the FAST Cache and FAST VP enablers installed. Exchange 2010 is installed on a vSphere guest.

  What performance best practice should be considered when migrating Exchange 2010 to the storage pool?

  A. Use thick LUNs in the storage pool.

  B. Enable FAST VP for the storage pool.

  C. Enable FAST cache for the storage pool.

  D. Use eager zeroed thin LUNs in the storage pool.

  Correct Answer: A

• Question 120:

  A customer is implementing an Etherchannel environment. They are concerned about the how the VNX will

  handle the traffic load distribution.

  What is used by VNX to distribute the traffic?

  A. EUI

  B. Round Robin

  C. MAC

  D. Serial Number Seed

  Correct Answer: C