EMC E20-545 Online Practice Questions and Exam Preparation

EMC E20-545 Online Questions & Answers

• Question 151:

  Which VNX virtual device can be deployed independently of pre-existing customer Ethernet configurations?

  A. Fail Safe Networking
  B. Link Aggregation
  C. Ethernet Channel
  D. MAC addressing
  A. Fail Safe Networking

• Question 152:

  You are examining NAR files from a VNX Block system and notice that the I/O has no write burst and overall is very low. The low and high watermarks are currently set at 40/60. What settings would you recommend for the low and high watermarks?

  A. 60/80
  B. 80/90
  C. 60/70
  D. 20/40
  A. 60/80

• Question 153:

  A customer has a requirement for restartable backups of an SQL database and the SQL log LUN. How can this requirement be met?

  A. Create VNX Consistency Group containing the database and log LUNs Create VNX Snapshot of Consistency Group Mount VNX Snapshot Set on backup server
  B. Create VNX Snapshot of database LUN Create VNX Snapshot of SQL log LUN Mount VNX Snapshots on backup server
  C. Create VNX Consistency Group containing the database and log LUNs Mount the database LUN directly on the backup server Mount the log LUN directly on the backup server
  D. Create SnapView clone of database LUN Create SnapView clone of log LUN Mount clone LUNs on database server
  A. Create VNX Consistency Group containing the database and log LUNs Create VNX Snapshot of Consistency Group Mount VNX Snapshot Set on backup server

• Question 154:

  A customer has FLR-E and non-FLR multiprotocol file systems on a VNX. They ask you about adding FLR-C file systems. What should you discuss with the customer?

  A. FLR-E and FLR-C file systems can be mixed on the same VNX.
  B. FLR-E and FLR-C file systems cannot be mixed on VDMs.
  C. A separate FLR-C license is required.
  D. FLR-C does not support multiprotocol file systems.
  A. FLR-E and FLR-C file systems can be mixed on the same VNX.

• Question 155:

  Which statement describes the Reserved LUN Pool?

  A. Member LUNs must be inStorageGroup
  B. Requires the FAST VP enabler
  C. A managed object used by VNX Snapshots
  D. Contains chunks of 64 kB in size
  D. Contains chunks of 64 kB in size

• Question 156:

  A 512 GB LUN has three clones. While Clone 1 is fractured, and Clones 2 and 3 are in the non- fractured state, a secondary host performs 200 random writes of 4 kB to Clone 1. Clone 1 is then used in a Protected Restore operation. How much data is written to the Source LUN by the restore process?

  A. 800 kB
  B. 12,800 kB
  C. 25,600 kB
  D. 51,200 kB
  D. 51,200 kB

• Question 157:

  You install a new Qlogic HBA in a Linux host. Which host utility can you use to view configuration information about the new HBA?

  A. SANsurfer
  B. OneCommand Manager
  C. Host Connectivity Manager
  D. Unisphere for VNX
  A. SANsurfer

• Question 158:

  You install a new Emulex HBA in a Linux host. Which host utility can you use to view configuration information about the new HBA?

  A. SANsurfer
  B. Host Connectivity Manager
  C. OneCommand Manager
  D. Unisphere for VNX
  C. OneCommand Manager

• Question 159:

  A customer has an environment consisting of 25 classic LUNs of 100 GB each that hold data from a custom application, and 15 thick LUNs of 50 GB each that are used for a database application. Free disk space on the system amounts to 800 GB.

  The customer runs a scan of the classic LUNs each night to check for data corruption. The application must be shut down in order to run the scan. Scans are taking too long to run, and production is affected. The customer asks for a solution to the problem.

  What should you propose?

  A. Create VNX Snapshots of the LUNs, and run the scan against the Snapshots
  B. Create SnapView Snapshots of the LUNs, and run the scan against the Snapshots
  C. Clone each of the application LUNs each evening, and run the scan against the Clones
  D. Clone each of the application LUNs each morning, and run the scan against the Clones
  B. Create SnapView Snapshots of the LUNs, and run the scan against the Snapshots

• Question 160:

  What is the slice size for a LUN in a storage pool?

  A. 64 KB
  B. 512 MB
  C. 8 KB
  D. 1 GB
  D. 1 GB