E20-885 Online Practice Questions and Answers

An administrator is attempting to vMotion a VM from one vSphere ESXi 5.0 host to another. The ESXi servers are connected to three VNX arrays on the fabric. The vMotion fails. What is the most likely reason?

A. RDMs are attached to the VM with different host LUN numbers on the ESXi servers.

B. There are active SnapView sessions on the VM preventing the vMotion.

C. RDMs are in physical compatibility mode and not eligible for vMotion.

D. There are active MirrorView sessions on the VM preventing the vMotion.

A customer has a Windows-only environment connected to an EMC VNX for File at their main campus site.

The customer plans to install a new EMC VNX at a remote branch office site. The new VNX will be used to

implement a DR solution for their main campus VNX using several deduplicated file systems shared and

available to clients via CIFS.

Which solution do you recommend to the customer?

A. Use VNX Replicator to replicate the VNX VDMs and associated file systems from the main campus site to the VNX system at the branch office site to provide an asynchronous DR solution.

B. Use VNX Replicator to replicate the VNX VDMs and associated file systems from the main campus site to the VNX system at the branch office site to provide a synchronous DR solution.

C. Use VNX SAN Copy to replicate the VNX block devices associated with the VNX file systems from the main campus site to the VNX system at the branch office site to provide a synchronous DR solution.

D. Use VNX MirrorView/A to replicate the VNX block devices associated with the VNX file systems from the main campus site to the VNX system at the branch office site to provide an asynchronous DR solution.

A customer creates a Remote Mirror of a 1 GB RAID 5 pool LUN. The primary LUN is presented to a Windows storage group. The customer wants to add a Secondary Image to the Remote Mirror. The only LUNs available are 5 GB RAID 1/0 LUNs presented to a Linux storage group. The customer reports they are unable to add the Secondary Image. What do you advise?

A. Secondary Image must be the same RAID type.

B. Secondary Image must be the same capacity.

C. Secondary Image must be in the same storage pool as the Primary Image.

D. Secondary Image must be presented to the same host type.

Click on the calculator icon in the upper-left hand corner.

There are 100 GB in updates to the transaction logs for an SQL server over an eight-hour business day. How many I/O per second are required to support the workload?

A. 455

B. 657

C. 546

D. 776

A customer plans to replicate an Oracle instance to an EMC VNX located in their test environment. What Oracle files are required to be replicated to ensure that the database will start up?

A. control files, data files, redo log files

B. data files, control files, archive log files

C. control files, spfile, data files

D. data files, archive log files, pfile

A customer plans to add a new LUN to a Windows 2003 server. They are aware that LUN disk crossing will affect performance. Which procedure can significantly reduce LUN disk crossings in an SQL environment?

A. Use diskpart to set the disk partition offset to 2048 blocks

B. Use only 4+1 disk sets when configuring RAID 5

C. Use an NTFS cluster size of 64 KB

D. Use striped metaLUNs consisting of exactly four component LUNs

A VNX customer has a production read-intensive Oracle environment that requires immediate access for end-user reporting. Which EMC replication application meets the customer's business requirement?

A. SnapView Snapshots

B. MirrorView/S

C. Replication Manager

D. MirrorView/A

You receive a call from a customer asking why they are not getting optimal performance on their new Block

pool LUNs that they created last week.

How could the customer obtain more predictable performance?

A. Move to classic LUNs

B. Make sure to use thin LUNs

C. Move LUNs to a new pool and select the lowest tier

D. Move LUNs to a new pool and select the highest tier