EMC E20-885 Online Practice Questions and Exam Preparation

EMC E20-885 Online Questions & Answers

• Question 201:

  You are installing a new VNX and need to implement a Storage Pool on the array. Disks are available and must be set up as follows:

  18, 400 GB SSD in R5 (4+1) for the Extreme Performance tier 30, 600 GB 15K SAS R10 (4+4) for the Performance tier 52, 4 TB NL-SAS R6 (6+2) for the Capacity tier

  Disks for Fast Cache, Vault, and unbound disks for sparing, are allocated separately.

  How should you lay out the private RAID Groups in the Storage Pool?

  A. Extreme Performance tier: 3 R5 (4+1) + 1 R5 (2+1) Performance tier: 3 R10 (4+4) + 1 R10 (3+3) Capacity tier: 6 R6 (6+2) + 1 R6 (2+2)
  B. Extreme Performance tier: 3 R5 (4+1) + 1 R5 (2+1) Performance tier: 3 R5 (8+1) Capacity tier: 5 R6 (6+2) + 1 R6 (10+2)
  C. Extreme Performance tier: 2 R5 (4+1) + 1 R5 (7+1) Performance tier: 3 R10 (4+4) + 1 R10 (3+3) Capacity tier: 6 R6 (6+2) + 1 R6 (2+2)
  D. Extreme Performance tier: 3 R5 (4+1) + 1 R5 (2+1) Performance tier: 2 R10 (4+4) + 1 R10 (7+7) Capacity tier: 6 R6 (6+2) + 1 R6 (2+2)
  A. Extreme Performance tier: 3 R5 (4+1) + 1 R5 (2+1) Performance tier: 3 R10 (4+4) + 1 R10 (3+3) Capacity tier: 6 R6 (6+2) + 1 R6 (2+2)

• Question 202:

  A customer asks you to design an EMC VNX for an Oracle database composed of 300 GB RAID 1 and 600 GB RAID 5 (4+1) drives. Which configuration provides maximum usable capacity balanced with reasonable performance?

  A. Place the Redo log and Archive log files on RAID 1. Place the Control and database files on RAID 5.
  B. Place the Control and database files on RAID 1. Place the Redo log and Archive log files on RAID 5.
  C. Place the Control, Redo log, and Archive log files on RAID 1. Place the database files on RAID 5.
  D. Place the database files on RAID 1. Place the Control, Redo log, and Archive log files on RAID 5.
  A. Place the Redo log and Archive log files on RAID 1. Place the Control and database files on RAID 5.

• Question 203:

  A customer is using MirrorView/S to replicate production data from Site A to Site C. The production Exchange server is located at Site A and has access to LUNs 101 and 102. LUNs 101 and 102 are placed in a consistency group. Site A experiences a disaster and Site C is now production. What configuration change is needed to allow the Exchange server access to Site C's LUNs 101 and 102?

  A. Promote the Secondary Image.
  B. Connect the Exchange server to the appropriate storage group.
  C. Add the Secondary Image to the appropriate storage group.
  D. Fracture the mirror.
  A. Promote the Secondary Image.

• Question 204:

  An Incremental SAN Copy (ISC) session fails to start. You investigate and determine the source LUN has trespassed to the peer SP. How can SAN Copy session be recovered?

  A. Change the target LUN SP ownership to match the source and transfer the ISC session to the corresponding SP.
  B. Trespass the target LUN back to the new owning SP and restart the ISC session.
  C. Destroy the target LUN, recreate it using the current SP owner and recreate the ISC session.
  D. Manually transfer ownership of the ISC session to the current matching SP of the source LUN.
  A. Change the target LUN SP ownership to match the source and transfer the ISC session to the corresponding SP.

• Question 205:

  A heterogeneous Pool is created as follows:

  5 x 200 GB FAST VP optimized Flash drives, configured as 4+1 R5 10 x 600 GB 10K rpm SAS drives, configured as 4+1 R5 16 x 2 TB NL-SAS drives, configured as 6+2 R6

  Ten equal-sized thick LUNs are created on the pool at 5 minute intervals. No space is left in the pool. All parameters are left at the default value. Testing is started at 9:00 AM on the 10 LUNs using IOmeter. The R/W ratio for the testing is set at 3:1, and 4 kB random I/Os are performed.

  What throughput should you expect to see from the LUN that was created first?

  A. 3,500 IOPS
  B. 5,000 IOPS
  C. 10,400 IOPS
  D. 18,200 IOPS
  C. 10,400 IOPS

• Question 206:

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

• Question 207:

  A customer wants to migrate a LUN from one EMC VNX to another. The customer wants to use the integrated LUN migration feature. Due to a change freeze, the customer can install additional software, but cannot add any additional hardware. What do you recommend?

  A. Use SAN Copy, rather than LUN migration
  B. Configure target LUNs 20% larger than source LUNS
  C. Configure Thin source LUNs and Thick target LUNs
  D. Use RecoverPoint, rather than LUN migration
  A. Use SAN Copy, rather than LUN migration

• Question 208:

  Which Linux host command is available to run as the boxmgmt user from the 'Run Internal command' menu of the Advanced commands?

  A. netstat
  B. tracert
  C. ifconfig
  D. ps
  A. netstat

• Question 209:

  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
  C. MAC

• Question 210:

  You are implementing a VNX into a CIFS environment.

  Which server_mount command option should you use if the file system consists of database data files?

  A. uncached
  B. noprefetch
  C. nolock
  D. cifssyncwrite
  A. uncached