EMC E20-880 Online Practice Questions and Exam Preparation

EMC E20-880 Online Questions & Answers

• Question 131:

  An Oracle database is stored on an EMC VNX storage array and replicated to a second VNX array at a DR location. EMC RecoverPoint is providing the replication. According to best practices, how many Consistency Groups are required to provide application consistent recovery?

  A. Three Consistency Groups: (1) data files and undo logs; (2) online redo logs; (3) archived redo logs and control files
  B. Two Consistency Groups: (1) data files, control files, and undo logs; (2) online redo logs and archived redo logs
  C. A single Consistency Group containing data files, undo logs, online redo logs, archived redo logs, and control files
  D. Two Consistency Groups: (1) data files, online redo logs, undo logs, and control files; (2) archived redo logs
  A. Three Consistency Groups: (1) data files and undo logs; (2) online redo logs; (3) archived redo logs and control files

• Question 132:

  Which is an EMC Best Practice when configuring the High Bandwidth option for Pool LUNs?

  A. This option is unsupported for Pool LUNs.
  B. Use with LUNs in multi-tier storage pools.
  C. Limit use to VNX File OE LUNs.
  D. Use only with RAID 5 single-tier storage pools.
  A. This option is unsupported for Pool LUNs.

• Question 133:

  A customer has a VNX system to provide storage for a VMware Cluster with five ESX hosts. Each ESX host has one dual-port FC HBA connected to two FC switches. They are using VMware native failover functionality for high availability

  and load-balancing.

  The customer requires higher availability for the ESX host connectivity to the storage system.

  What would you recommend to the customer?

  A. Use dual HBAs with dual ports on each ESX host.
  B. Use a host-based load balancing solution.
  C. Use high quality stackable FC switches.
  D. Current configuration ensures the best availability.
  A. Use dual HBAs with dual ports on each ESX host.

• Question 134:

  A customer with an existing VNX for File implementation wants to enable deduplication on a file system, based on the following specifications:

  

  Idle File System

  

  Number of files: 1 M

  

  Average file size: 50 KiB

  

  Estimated deduplication: 30%

  What is the estimated time for initial deduplication?

  A. 5 min
  B. 10 min
  C. 15 min
  D. 20 min
  C. 15 min

• Question 135:

  A customer is experiencing performance issues during their anti-virus scanning in their VMware environment. They have determined the problem to be a storage issue. Full clones on SAS drives are being used for replicas. All the anti-virus scans must be run during a limited time window. What can the engineer recommend to alleviate the bottleneck?

  A. Move clones to Flash Drives
  B. Use linked clones for better performance
  C. Add additional FAST Cache
  D. Move to NL SAS in a RAID 10 configuration
  A. Move clones to Flash Drives

• Question 136:

  Your customer wants to enable file deduplication on an existing data-populated VNX for File system, based on the following specifications:

  

  Moderately busy file system scan rate: 500 files per second

  

  Moderately busy file system ingest scan rate: 5 MB/sec

  

  Number of files: 1 M

  

  Average file size: 50 KiB

  

  Estimated deduplication: 30%

  How long will the initial deduplication take to complete?

  A. 25 min
  B. 42 min
  C. 82 min
  D. 116 min
  C. 82 min

• Question 137:

  As a result of suffering a catastrophic failure, your customer has requested a DR solution. The solution must introduce a higher level of availability for their Exchange 2010 system. The customer wants a strategy that involves Replication Manager and DAG with third-party replication enabled.

  In what state(s) of the database would the replication occur?

  A. Active only
  B. Either active or passive
  C. Passive only
  D. Neither active nor passive
  A. Active only

• Question 138:

  A customer built a VDI on a VNX array. The customer currently has only NL-SAS drives. The customer wants to simulate I/O characteristics of users accessing the storage from the virtual desktops. What tool should be recommended?

  A. Horizon View Planner
  B. Unisphere Analyzer
  C. Test Harness Planner
  D. Virtual Storage Integrator
  A. Horizon View Planner

• Question 139:

  Refer to the exhibit.

  

  You are proposing a storage solution using VNX to support a Microsoft Exchange 2010 virtual implementation on VMware ESXi. You have worked with the customer to understand the Exchange requirements, which are described in the exhibit. Based on availability, performance, and Exchange mailbox size requirements, you are recommending RAID 5 with 7.2K rpm NL/SAS drives.

  Following EMC best practices, what is the minimum number of spindles that would be required for this environment?

  A. 16
  B. 26
  C. 34
  D. 48
  B. 26

• Question 140:

  Your customer has a VNX array with FAST Cache licensed with a single storage pool created.

  They currently use the Storage Pool for their general production environment, but would like you to design an environment that will support their Exchange 2010 deployment. There is sufficient free space in the Storage Pool to accommodate

  their Exchange storage requirements.

  Based on EMC best practice guidelines, which design would you recommend?

  A. Enable FAST Cache on the existing Storage Pool. Place the database volumes on the existing Storage Pool. Create a second storage pool for the log volumes.
  B. Place the database and log files on the existing Storage Pool. Enable FAST VP. Increase the array Write Cache value.
  C. Create a new Storage Pool. Place the database and log files on this new Storage Pool. Enable FAST VP.
  D. Enable FAST Cache on the existing Storage Pool. Place the log volumes on the existing Storage Pool. Create a second storage pool for the database volumes.
  A. Enable FAST Cache on the existing Storage Pool. Place the database volumes on the existing Storage Pool. Create a second storage pool for the log volumes.