Exam Details

  • Exam Code
    :E20-390
  • Exam Name
    :VNX Solutions Specialist Exam for Implementation Engineers
  • Certification
    :EMC Specialist
  • Vendor
    :EMC
  • Total Questions
    :412 Q&As
  • Last Updated
    :Mar 11, 2025

EMC EMC Specialist E20-390 Questions & Answers

  • Question 61:

    Which format should be used to enter the managing SP into a Host Agent configuration?

    A. @192.168.1.100

    B. @FD:B4:D9:59:D8:19:E3:11:A9:FC:E6:38:1C:E0:97:8B

    C. ~192.168.1.100

    D. ~FD:B4:D9:59:D8:19:E3:11:A9:FC:E6:38:1C:E0:97:8B

  • Question 62:

    If a company is using Microsoft Exchange 2007 in a VNX for Block environment, what is the recommended page size?

    A. 4 kB

    B. 8 kB

    C. 16 kB

    D. 32 kB

  • Question 63:

    After adding LUNs to a storage group for a newly attached SAN host, the host cannot access any of the LUNs. When looking at the Unisphere Host Initiators page to verify connectivity, the storage group listed for the host is ~management.

    Which step was missed when provisioning this host?

    A. Adding the host to the storage group

    B. Assigning host IDs to the LUNs

    C. Manually registering the host initiators

    D. Setting the correct failover mode for the host initiators

  • Question 64:

    In order for a FAST cache promotion to take place, what is the size of the data block that must be accessed multiple times in a short period of time?

    A. 32 KB

    B. 64 KB

    C. 128 KB

    D. 256 KB

  • Question 65:

    When a client sends a read request to a VNX, what happens to the requested data if it is found in FAST Cache?

    A. First sent to multi-core cache and then read back to the client

    B. Read back to the client directly from FAST Cache

    C. First copied to physical disks and then read back from FAST Cache

    D. First promoted from physical disks and then read back to the client

  • Question 66:

    A company is expanding their storage infrastructure with five new VNXs. They are using VMware ESXi hosts that have access to several datastores on various VNX storage arrays.

    Based on EMC best practices, what is a recommended configuration?

    A. Each host should use LUNs from no more than four VNXs

    B. Each datastore should have its own storage group for each host

    C. Each host should be connected to each storage array using four zones

    D. A maximum of four LUNs per storage group should be used

  • Question 67:

    A company has an application that uses a small amount of capacity but has very high performance requirements. The storage administrator wants to configure the FAST VP policy to ensure LUNs allocated to this application always remain on higher performance storage.

    Which action should be taken?

    A. Initially set the policy to Highest Available Tier, then No Data Movement

    B. Initially set the policy to Lowest Available Tier, then Auto-Tier

    C. Set policy to Auto-Tier

    D. Initially set the policy to Highest Available Tier, then Auto-Tier

  • Question 68:

    A company has an application that requires very high capacity but has very low performance requirements. The storage administrator wants to configure the FAST VP policy to ensure LUNs allocated to this application always remain on low performance storage.

    Which action should be taken?

    A. Initially set the policy to Lowest Available Tier, then No Data Movement

    B. Initially set the policy to Lowest Available Tier, then Auto-Tier

    C. Set policy to Auto-Tier

    D. Initially set the policy to Highest Available Tier, then Auto-Tier

  • Question 69:

    A company wants a mixed tier pool to optimize the use of their Flash, 10k RPM and 15k RPM drives. They want the Flash drives configured in RAID 5, the 10k RPM drives in RAID 6, and the 15k RPM drives in RAID 5.

    Why can only two tiers in the pool be created?

    A. The 10k and 15k drives are the same tier

    B. Flash drives cannot be used in a pool

    C. A pool is either RAID 5 or RAID 6

    D. FAST Cache is also configured

  • Question 70:

    A company has an application that requires very high capacity but low performance requirements. Their new VNX is fully virtually provisioned and uses FAST VP storage pools. They want to configure the LUNs for this application on low performance storage.

    How should the LUNs be initially configured?

    A. Use the Lowest Available Tier option

    B. Use a traditional RAID group LUN on SAS drives

    C. Use the Optimize for Pool Performance option

    D. Use a traditional RAID group LUN on NL-SAS drives

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