EMC E20-885 Exam Questions & Answers

A customer requires an asynchronous DR solution for an NFS-only client environment. The customer wants the solution to be simple to implement. It was recommended they create a single NIS domain, and use several NIS servers to provide centralized authentication to the NFS clients at both the source and destination sites. The customer asks you whether they should consider using VDMs in this environment. What do you advise?

A. VDMs would offer no advantages to this environment.

B. VDMs allow VMWare integration of NFS service environments.

C. VDMs eliminate the need for Usermapper in NFS environments.

D. VDMs allow for assignment of specific CPUs to a NFS server.

A customer has a Windows-only environment connected to a Celerra gateway utilizing Symmetrix storage at their main campus site. The customer plans to install a new EMC VNX at their remote site and implement a DR solution for their Celerra. The customer requires several thin-provisioned file systems be shared and available to clients via CIFS and wants to implement VDMs. Which solution do you recommend to the customer?

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

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

C. Use VNX SAN Copy to replicate the Symmetrix devices associated with the Celerra file systems from the main campus site to the VNX at the remote site to provide a synchronous DR solution.

D. Use SRDF/A to replicate the Symmetrix devices associated with the Celerra file systems from the main campus site to the VNX at the remote site to provide an asynchronous DR solution.

A VDI environment is using VNX over iSCSI for its data stores. All planning trials with an application test harness, and thorough HA simulation, indicated a maximum of 1000 virtual desktops for the VNX pool for acceptable performance. The actual number of desktops allocated to the pool is 750.

Users have reported poor virtual desktop performance, and the VNX Administrator has observed a

consistently high level of read I/O on the VNX LUNs servicing this VDI solution.

What is a possible cause of this situation?

A. Desktops have insufficient RAM allocation.

B. A desktop virus has triggered CAVA antivirus scan for all desktops.

C. An employee shift change triggered excessive I/O to load user profiles.

D. VNX FAST Cache was not sized correctly.