Exam Details

  • Exam Code
    :E20-885
  • Exam Name
    :VNX Solutions Expert Exam for Implementation Engineers
  • Certification
    :Implementation Engineer
  • Vendor
    :EMC
  • Total Questions
    :275 Q&As
  • Last Updated
    :May 14, 2025

EMC Implementation Engineer E20-885 Questions & Answers

  • Question 161:

    A customer configures replication between two Data Movers for their VDM environment. The primary Data Mover has one 1 Gb copper ethernet port and the destination Data Mover has one 10 Gb optical network port. The customer reports replication is not performing as expected and requests your assistance. What is the most likely cause of this replication issue?

    A. The interface on the Data Movers has a duplex mismatch.

    B. The interface speeds do not match on both Data Movers.

    C. The interface names do not match on both Data Movers.

    D. The interface media do not match between Data Movers.

  • Question 162:

    A customer has an ESX 5.0 environment attached to an EMC VNX with VAAI enabled. They would like to Storage vMotion a guest host to another datastore. How does enabling VAAI on the VNX benefit Storage VMotion?

    A. Network traffic is offloaded to the VNX

    B. The ESX host compresses the data

    C. There is no benefit with VAAI and VNX

    D. The Guest Host does not need to be powered off

  • Question 163:

    A customer has the following virtualized environment:

    · One EMC VNX providing thin LUNs to a VMware ESX v4.0 host · Five VMs running critical OLTP systems supported by one or more databases.

    The customer previously experienced some out-of-space conditions due to VMDK oversubscription. You recommend they upgrade their virtual environment to vSphere v5.0 to benefit from its VAAI features.

    Which VAAI primitive addresses their issue?

    A. Block Zeroing

    B. Stun and Resume

    C. Full Copy

    D. Hardware Assisted Locking

  • Question 164:

    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.

  • Question 165:

    What is the default file system type when creating a File System on a VNX?

    A. uxfs

    B. ckpt

    C. rawfs

    D. mgfs

  • Question 166:

    A customer plans a DR test for their CIFS DR solution using EMC VNX. The customer needs to confirm users will be able to access data at the DR site in the event of a source site disaster. The VNX at the source site will not be shut down during the DR test. The customer asks how they should proceed. What do you advise the customer?

    A. Perform a Replication Switchover operation from the source VNX.

    B. Perform a Replication Switchover operation from the DR site VNX.

    C. Perform a Replication Failover operation from the DR site VNX.

    D. Perform a Replication Failover operation from the source VNX.

  • Question 167:

    A customer is choosing which drives will be used for their SavVol. What are the characteristics of SavVol?

    A. SavVol writes are random. SavVol reads are sequential.

    B. PFS writes are random. SavVol reads are sequential.

    C. SavVol writes are sequential. SavVol reads are random.

    D. PFS writes are sequential. SavVol reads are random.

  • Question 168:

    You implement FAST VP on an existing EMC VNX. The Extreme Performance pool holds 5% of usable storage, the Performance pool holds 20%, and the Capacity pool holds 75%. The Tiering Policy is set to Auto.

    The attached hosts run several applications. Some applications access data frequently, while others are write-once read-never. Twenty minutes after tiering is started, the customer reports there is no performance improvement. How should you respond?

    A. Data relocation involves a warm-up period the performance benefit is seen over the long term.

    B. The Performance pool is too large for effective data relocation.

    C. The warm-up period for FAST VP is determined by the size of the Capacity pool.

    D. Three-level tiering is not supported in FAST VP.

  • Question 169:

    A customer wants to implement a DR solution on two VNX for File located at a primary and a backup site. They have three VDMs, each with a CIFS file system providing shares for sales, finance and marketing. What must be configured for a successful failover?

    A. The Data Movers associated with the VDM replication must have identical interface names.

    B. The VDM root file system should be configured on storage with identical RAID types.

    C. The VDM should be built on the same user file system that contains the CIFS share.

    D. The Data Movers associated with the VDM replication must have identical physical network devices.

  • Question 170:

    A customer has an EMC VNX dedicated to an SQL Server environment. They report performance issues. You notice there is frequent forced flushing on the VNX. What action can they take to correct this without adversely affecting performance?

    A. Disable write caching for all databases

    B. Increase read caching for all databases

    C. Disable write caching for read-only databases

    D. Disable read caching for all databases

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