E20-390 Exam Details

  • Exam Code
    :E20-390
  • Exam Name
    :VNX Solutions Specialist Exam for Implementation Engineers
  • Certification
    :EMC Certifications
  • Vendor
    :EMC
  • Total Questions
    :412 Q&As
  • Last Updated
    :Jul 07, 2026

EMC E20-390 Online Questions & Answers

  • Question 401:

    Where in Unisphere is FAST Cache configured?

    A. In Storage Pool Properties
    B. In Storage System Properties
    C. In RAID Group Properties
    D. In Storage Hardware Properties

  • Question 402:

    In order to connect to a VNX series array, you are tasked with implementing a CNA adapter on a ESX host. What is the minimum supported ESX version required for this type of adapter?

    A. 3.5 U4
    B. 3.5
    C. 4.0
    D. 4.1

  • Question 403:

    A storage administrator creates a clone of a source LUN. Which command should be used to make the clone available to the secondary server?

    A. synchronize
    B. activate
    C. fracture
    D. start session

  • Question 404:

    What is the correct VNX Block based VAAI operation?

    A. Array Accelerated Full Copy
    B. Array Accelerated Bulk copy
    C. Thick Lun Provisioning
    D. Pause and Resume

  • Question 405:

    How do VNX Snapshots differ from VNX Snapview Snapshots?

    A. VNX Snapshots use redirect on first write. SnapView Snapshots use copy on first write.
    B. VNX Snaphosts use copy on first write. SnapView Snapshots use redirect on first write.
    C. VNX Snapshots require application I/O be stopped. SnapView Snapshots do not.
    D. VNX Snapshots support 64 snapshots per LUN. SnapView Snapshots support 32.

  • Question 406:

    How many local user accounts can be created per VNX CIFS Server?

    A. 128
    B. 256
    C. 1024
    D. 2048

  • Question 407:

    By default, which TCP port does Unisphere Host Agent management software utilize on Linux?

    A. 80
    B. 443
    C. 6389
    D. 8963

  • Question 408:

    Counting from left to right, which octect identifies the SP and port number in the WWPN 50:06:01:62:47:20:32:88?

    A. 4
    B. 2
    C. 3
    D. 5

  • Question 409:

    A Storage Administrator created several new LUNs for an existing SAN attached Linux host. Some of the new LUNs are owned by SPA and some are owned by SPB. Linux can only see some of the new LUNs. Which troubleshooting step should be completed next?

    A. Check the EMC Host Connectivity Guide for Linux to verify the maximum number of LUNs visible to the host
    B. Check the zoning to verify that all HBAs can see all of the ports on each Storage Processor
    C. Check the agent.config file on the host to verify the maximum number of LUNs the host can manage
    D. Check the LUN ownership of each LUN to make sure none are trespassed

  • Question 410:

    Where can the Secondary Usermapper run?

    A. On standby Data Movers
    B. On virtual Data Movers only
    C. On physical or virtual Data Movers
    D. On physical Data Movers only

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