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 241:

    Which statement is valid regarding the LACP implementation on the VNX Data Mover?

    A. All clients receive an increase in throughput due to LACP increased bandwidth
    B. Full- and half-duplex Ethernet ports can be used to create the LACP trunk
    C. LACP trunks can be created with any number of physical and virtual devices
    D. The Data Mover chooses the greatest number of ports at the same speed

  • Question 242:

    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 243:

    Which two types of monitoring configurations are allowed with the "Notifications for Block Storage Systems" option?

    A. Centralized and Distributed
    B. Local and Remote
    C. Internal and External
    D. Online and Offline

  • Question 244:

    What optional authentication method is supported when using NFS Version 3?

    A. NIS
    B. LDAP
    C. Kerberos
    D. NTLM

  • Question 245:

    An SQL database administrator has a space concern on a VNX array. The database LUN is configured using standard provisioning on a Windows Server 2008 host. What can the storage administrator do to solve the space concern without disruption to the users?

    A. Create a larger LUN, use VNX LUN migration to migrate the data, and extend the LUN on the host
    B. Create a larger LUN, use VDM migration to migrate the data, and extend the LUN on the host
    C. Expand the thick pool LUN online without disruption.
    D. The LUN cannot be expanded or migrated without disruption to the users.

  • Question 246:

    An administrator wants to add storage capacity to the cmsas_archive storage pool. They bind on new RAC for VNX for File and create a disk volume on the host from it. They check the cmsas_archive storage pool but potential capacity is not

    increased.

    What could be a possible cause?

    A. The cmsas_archive pool was not manually extended with the newly created di sk volume
    B. Disk volumes were not added to system-defined storage pools.
    C. The disk volume is already assigned to the same storage pool but it is still unused
    D. There is a mismatch between cmsas_archive disk volumes and the newly created disk volume type

  • Question 247:

    What is mandatory when creating a file system on VNX for File?

    A. A production file system should reside entirely on a single storage array.
    B. A metavolume must be at least 1024 MB to accommodate a file system.
    C. You can only create a file system on root metavolumes that are not in use.
    D. By default, all file systems are created as RwFS.

  • Question 248:

    Which protocol is used to exchange file layout information between an MPFS client and a VNX array?

    A. MPFS
    B. SCSI
    C. FMP
    D. iSCSI

  • Question 249:

    What is the maximum number of characters you can use for a VNX Block Only Storage Processor Hostname?

    A. 15 characters
    B. 10 characters
    C. 20 characters
    D. 25 characters

  • Question 250:

    Which component of RecoverPoint/SE stores all changes to all LUNs in a consistency group and also provides time-stamped recovery points with application-consistent bookmarks?

    A. The group policies
    B. The analyzer
    C. The journal
    D. The RecoverPoint appliance

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