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E20-393 Real Exam Questions

Unity Solutions Specialist for Implementation Engineers

297 questions available · Page 1 of 30

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Question 1 Single choice

In UnityVSA, what is the maximum storage capacity offered by the VVOLs license?

  1. A

    4TB

  2. B

    10TB

  3. C

    25TB

  4. D

    50TB

Show answer and explanation

Correct answer: D

Explanation

UnityVSA maximum Usable Capacity is4 TB (Community Edition); 10 TB; 25 TB; and 50 TB licenses
available.

References:
https://store.emc.com/se/Product-Family/EMC-Unity-Products/EMC-Unity-VSA/p/EMC-Unity-Virtual-Storage-Appliance

Question 2 Single choice

A Thin Clone has just been created.

What operation can be performed on it?

  1. A

    Change FAST VP Policy

  2. B

    Change SP ownership

  3. C

    Change Data Reduction setting

  4. D

    Increase its size.

Show answer and explanation

Correct answer: D

Explanation

References:
https://www.dellemc.com/resources/en-us/asset/white-papers/products/storage/h15089-dell-
emc-unity-snapshots-and-thin-clones.pdf (27)

Question 3 Single choice

What pathing options are supported by Dell EMC Unity XT systems to provide a host with Fibre Channel access to block storage?

  1. A

    Single Path, Multipath, and Alternate Path

  2. B

    Single Path and Multipath only

  3. C

    Multipath only

  4. D

    Single Path only

Show answer and explanation

Correct answer: B

Explanation

References:
https://www.dellemc.com/zh-tw/collaterals/unauth/technical-guides-support-information/products/storage/docu69325.pdf

Question 4 Single choice

On a Dell EMC Unity system, all hosts can be required to use which authentication method for iSCSI interfaces?

  1. A

    PAP

  2. B

    Kerberos

  3. C

    EAP

  4. D

    CHAP

Show answer and explanation

Correct answer: D

Explanation

References:
https://www.dellemc.com/en-us/documentation/unity-family/unity-p-hst-fc-iscsi/02-vxe-hst-br-fi-setting-up-iscsi-unixhost.htm

Question 5 Single choice

Which VVol object stores .
vmx files, logs, and NVRAM?

  1. A

    Config

  2. B

    Memory

  3. C

    Data

  4. D

    Swap

Show answer and explanation

Correct answer: A

Explanation

References:
https://www.dellemc.com/en-us/documentation/unity-family/unity-p-vvols-config/01-vxe-tn-vvols-br-manage-vvol-datastores.htm

Question 6 Single choice

A user is having difficulty troubleshooting a Unity storage system and the service provider has been contacted for assistance. The service provider needs to run some service commands on the Storage Processors to troubleshoot the issue further.

Which step must be taken to allow the service provider remote access to the storage system?

  1. A

    Enable SSH on the storage system

  2. B

    Set the Unisphere preferences to "Optimize" for remote access

  3. C

    Specify the SMTP configuration

  4. D

    Specify the Remote Logging configuration

Show answer and explanation

Correct answer: D

Explanation

The Service Tasks tab provides tools to service the storage system, including repair and troubleshooting.
You can use this page to collect system and configuration information for assisting your service provider with a service request. The service password is required to access the various service task operations.
The Technical Advisories tab displays up-to-date information about advisories specific to the system by referencing knowledge base articles. The Logs tab displays an audit log for system events. It also allows users to configure a remote host to which to send log information and lets users export logs into a CSV file for additional reporting purposes.

Question 7 Single choice

A storage administrator is required to test a new version of an application loaded on a secondary host. The administrator must use existing data contained on a LUN provisioned from Unity to a primary host.

Which solution will meet the requirement and provide space efficiency?

  1. A

    Create a snapshot of the LUN Configure LUN access for the secondary host Attach the snapshot to the secondary host

  2. B

    Create a snapshot of the LUN Configure snapshot access to the LUN for the secondary host Attach the snapshot to the secondary host

  3. C

    Create a Synchronous Replication session for the LUN Configure access to the replica LUN for the secondary host Attach the secondary host

  4. D

    Create an Asynchronous Replication on session for the LUN Configure access to the replica LUN for the secondary host Attach the secondary host

Show answer and explanation

Correct answer: B

Explanation

Attaching a snapshot is only applicable for block snapshots, and makes the snapshot available for host IO.
A host must have Snapshot access or LUN and Snapshot access configured in order to access the snapshot. When a snapshot is attached, Unisphere provides the option to create a copy of the snapshot in case the administrator wants to preserve the current snapshot view for future use.

Question 8 Single choice

What describes the LUN Snapshot Copy operation?

  1. A

    Parent cannot be a snapshot copy

    Can only copy a detached snapshot
    Has an independent Retention Policy from the parent

  2. B

    Parent can be a snapshot copy
    Can only copy a detached snapshot
    Has an independent Retention Policy from the parent

  3. C

    Parent can be a snapshot copy
    Can copy an attached or detached snapshot Inherits the parent Snapshot Retention Policy

  4. D

    Parent cannot be a snapshot copy
    Can copy an attached or detached snapshot Inherits the parent Snapshot Retention Policy

Show answer and explanation

Correct answer: B

Explanation

Note: You can create copies of LUNs by cloning LUNs from the Snapshot copies in a volume. These FlexClone LUNs are readable and writable copies of the LUNs as the LUN existed when the Snapshot copy was created. Before you can clone a LUN, you must create a Snapshot copy (the backing Snapshot copy) of the LUN you want to clone.

References:
https://library.netapp.com/ecmdocs/ECMP1368845/html/GUID-E0660F7B-491B-4AA0-A1A8-22B12DC6917D.html

Question 9 Single choice

Which technology is used by Unity Snapshots?

  1. A

    Copy on First Write

  2. B

    Inline Deduplication

  3. C

    Redirect on Write

  4. D

    Block Compression

Show answer and explanation

Correct answer: C

Explanation

The technology used for snapshots of both block and file resources in Unity is called redirect on write.

Question 10 Single choice

Which UnityVSA storage resource can be configured with Host I/O limits?

  1. A

    NAS Server

  2. B

    Pool

  3. C

    File System

  4. D

    LUN

Show answer and explanation

Correct answer: D

Explanation

Host I/O limits is a feature which allows the user to control the amount of throughput and bandwidth consumed by block resources.
This feature can be applied to LUNs, VMFS datastores, or attached snapshots.