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EMC E20-390 Online Practice Questions and Exam Preparation

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
    :May 25, 2026

EMC E20-390 Online Questions & Answers

  • Question 261:

    Where can CPLs be created?

    A. Traditional LUNs
    B. Thick LUNs
    C. Thin LUNs
    D. Clone groups

  • Question 262:

    What is the default protocol for DNS?

    A. UDP
    B. FTP
    C. TCP
    D. PPP

  • Question 263:

    A company wants to use VNX Snapshots to create point in time views of their production LUNs. They discover that they cannot configure the snapshots they need. What might be causing this issue?

    A. LUNs are classic LUNs
    B. Pool that contains the LUNs is 90% full
    C. Reserved LUN Pool is not configured
    D. LUNs reside on the first four disks of the array

  • Question 264:

    In which Control Station file are the audit events defined?

    A. /etc/audit/audit.rules
    B. /etc/auditd.conf
    C. /nas/audit/audit.rules
    D. /nas/etc/audit.rules

  • Question 265:

    Which types of storage can be provisioned through the Unified Storage Management plug-in for VMware?

    A. NFS, VMFS, and RDM
    B. VMFS, RDM, and iSCSI
    C. VMFS and CIFS
    D. NFS and CIFS

  • Question 266:

    You are using the USM install Disk Array Enclosure wizard to add a DAE enclosure to a VNX system. What is the maximum number and type of DAE enclosure that the system can have?

    A. A combination of eight 2U 25-drive DAE5S enclosures and 3U 15-drive DAE6S enclosures
    B. It is based on the maximum number of drives
    C. Six 2U 25-drive DAE5S enclosures
    D. Eight 3U 15-drive DAE6S enclosures

  • Question 267:

    What is the fan-in ratio for MirrorView/S?

    A. 1: 1
    B. 2: 1
    C. 4: 1
    D. 8: 1

  • Question 268:

    What happens when a reverse synchronization completes with Protected Restore Mode enabled?

    A. Only the reverse-synchronized clone remains unfractured.
    B. All clones remain unfractured.
    C. Host-to-source LUN writes are mirrored to a clone.
    D. Host-to-source LUN writes are not mirrored to a clone.

  • Question 269:

    A VNX storage administrator wants to use the access options in a NFS export to ensure that a certain network can mount the NFS export. If the network is 10.64.88.0/24, how should the entry be set?

    A. 10.64.88.0
    B. 10.64.88.0-10.64.88.255
    C. 10.64.88.0/255.255.255.0
    D. 10.64.88.1-254/255.255.255.0

  • Question 270:

    In which file on a Data Mover are CAVA parameters set?

    A. viruschecker.enable
    B. viruschecker.conf
    C. ModifyVirusType.class
    D. ModifyVirus.class

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