E20-885 Online Practice Questions and Answers

You are planning a CIFS DR solution for two existing EMC VNX. Each VNX has dual Control Stations. Each VNX is also configured for a RecoverPoint protection solution on other VNX LUNs that are non-file related. What recommendation would you give the customer concerning the CIFS DR solution?

A. Configure IP aliasing on the Control Stations for both source and destination VNX systems before configuring VNX Replicator

B. Configure IP aliasing on the Control Stations for both source and destination VNX systems after configuring VNX Replicator

C. Configure IP aliasing on the source VNX system Control Stations before configuring VNX Replicator, and then configure IP aliasing on the destination VNX system Control Stations after configuring VNX Replicator.

D. Configure IP aliasing on the source VNX system Control Stations before configuring VNX Replicator and use RecoverPoint to provide protection of the source VNX Control Stations to the destination VNX.

A customer has an Oracle ASM database on an EMC VNX with FAST Suite enabled. They observe intermittent performance degradation due to momentary data hot spots caused by bursty transaction rates. What recommendation would you make to help alleviate these hot spots?

A. Enable Fast VP on the ASM LUNs

B. Modify the ASM rebalance power priority

C. Enable Fast Cache on the ASM LUNs

D. Disable ASM storage management

A customer's EMC VNX supports several Windows and UNIX application servers. The customer is concerned about VNX performance. By monitoring their switches, they notice there is heavy traffic between the servers and the VNX. On the VNX, the hard disks seem to be heavily accessed.

The customer wants to identify which application server workload type may be causing the observed behavior. What compound server_stats command do you suggest?

A. cifs-std and nfs-std

B. cifsOps-std and nfsOps-std

C. diskVolumes-std and netDevices-std

D. cifs and nfs

Exchange 2010 is installed on a virtual machine using VMDK files. Replication Manager is being used to

take snapshots of the virtual machine files and back them up to disk. After a few weeks, the Exchange

server stops functioning.

What is the most likely reason for the Exchange failure?

A. Replication Manager is unable to truncate log files.

B. Replication Manager can only snapshot powered off VMs.

C. Replication Manager is compatible with RDMs, not VMDKs.

D. Replication Manager is not compatible with VMFS version 5.

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.

A customer plans to move a performance-sensitive application to a new EMC VNX with all SAS drives. The application will reside on an NFS export, and the customer requires the file system provide consistent performance. The customer also needs to create additional CIFS shares, which do not share the same performance requirement. How should both sets of file systems be created?

A. Place four dvols in a user-defined pool for the NFS-exported file systems and let AVM manage the CIFS file systems with system-defined pools.

B. Place five dvols in a user-defined mapped pool for the NFS-exported file systems and let AVM manage CIFS file systems with system-defined pools.

C. Place four dvols in a system-defined pool for the NFS-exported file systems and let AVM manage the CIFS file systems with user-defined pools.

D. Place five dvols in a system-defined mapped pool for the NFS-exported file systems and let AVM manage the CIFS file systems with user-defined pools.

A customer plans to implement shared vSphere datastores using the NFS protocol in their environment. Their VMware support staff has concerns about their administration of these datastores. What features of vSphere v5 would you discuss with them to address their concerns?

A. Thick virtual disks can now be created to support failover clustering for certain business critical server environments.

B. The native networking stack has been upgraded to support Version 4 attributes of the protocol.

C. The network interface adapter teaming feature has been upgraded to support automated path failover in the event of session timeouts.

D. This type of datastore implementation has been upgraded to enable automated error correction of vmdk files.

A customer wants to implement file system replication between two EMC VNX. The source production file system contains data from a sequential workload that resides in a pool comprised of 2 TB NL-SAS drives. Due to cost concerns, the destination file system and SavVol volumes will also be NL-SAS and share spindles with user LUNs for another application. What should you tell the customer about this configuration?

A. The configuration goes against EMC best practices because it shares LUNs with user applications.

B. NL-SAS is adequate if the source file system is on NL-SAS and contains a sequential application.

C. When using VNX Replicator, only SAS drives should be used for Replication SavVol Volumes.

D. The destination file system can be used as a source for cascaded replication with no impact to performance.

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 customer uses VNX Snapshot for quality assurance testing throughout many phases of development. The customer notices that when project development ends and they delete all the snapshots, SP utilization seems to increase for a long time.

What could they have done to prevent the performance degradation?

A. Keep at least one snapshot of the thick LUN.

B. Unmount the Primary LUN before deleting the snapshots.

C. Defragment the LUN after removing all the snapshots.

D. Rename the snapshots prior to deleting them.

A customer wants to implement file system replication between two EMC VNX systems. The source production file system contains data from a sequential workload that resides in a pool composed of NLSAS drives.

The destination file system will be configured with a SnapSure schedule for data sharing. Due to cost concerns, the destination file system and SavVol volumes will also be placed on NL-SAS.

What should you tell the customer about this configuration?

A. Replicator session performance will decrease because of destination file system checkpoint reads.

B. NL-SAS is adequate if the source file system is on NL-SAS and contains a random application.

C. Only Flash and SAS drives should be used for Replicator SavVol volumes.

D. The destination file system can be used as a source for cascaded replication with no impact to performance.

You are implementing a VDI solution provided by the project Solutions Architect at a customer site. After application testing, the Storage Administrator states that the solution is spread across more disks than anticipated.

What explains why the solution design requires more disks than initially planned?

A. The design accounts for excessive boot I/O in case of an HA event.

B. The original request was for thin provisioning, but VDI environments require thick provisioning.

C. Best practice for VDI solutions is to use RAID 6, and this was not done.

D. Best practice for VDI solutions is to use RAID 1/0, and this was not done.

What is a factor that determines the time needed to transfer data during the initialization of RecoverPoint/ SE?

A. Storage performance

B. Number of Consistency Groups

C. Write splitter type

D. Number of replication sets

What is the state of the target replica storage during the RecoverPoint/SE replication distribution phase?

A. No Access

B. Read-Only

C. Read-Write

D. Ready

How many VNX arrays can be used to source replication volumes for a single RP/SE cluster using vRPAs?

A. One

B. Unlimited, as long as a license file is installed for each VNX

C. Two, with no constraints

D. Two, as long as the amount of data replicated does not exceed the amount licensed