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Dell E20-393 Exam Practice Questions (P. 3)

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Question #11
Which software bundles are provided with the Unity Starter software package?
  1. A
    FAST Cache and Fast VP
  2. B
    Thin Provisioning and Quality of Service
  3. C
    Controller-Based Encryption and RecoverPoint Basic
  4. D
    FAST Cache and Local Point-in-Time Copies

Correct Answer:
A
The UnityVSA offers a dynamic deployment model that allows you to start for free and grow as business needs evolve.
UnityVSA include:
✑ FAST Cache leverages the performance of Flash media to improve workloads that are interfacing with spinning disk media.
✑ Fully Automated Storage Tiering for Virtual Pools (FAST VP) ensures your data is distributed effectively across the various media types in a multi-tier pool.
Reference:
https://www.emc.com/collateral/white-papers/h15084-emc-unity-introduction-to-the-unity-platform.pdf
(page 20)

Question #12
When configuring asynchronous remote replication, how many internal Unity Snapshots are configured and utilized on the source system by a single replication session?
  1. A
    1
  2. B
    2
  3. C
    3
  4. D
    4

Correct Answer:
B
Internal Snapshot (Replication Snapshot) are Unity Snapshots created by the system which are part of an asynchronous replication session. These Snapshots can be viewed in Unisphere, but user operations are not permitted. Each asynchronous replication session uses two internal snapshots taken on the source and destination storage resources.

Question #13
A storage administrator is implementing FAST Cache on a Unity 500 storage array and can select from a mix of SSD drives. Which drive types can be configured to meet the administrator's requirements?
  1. A
    200 GB and 400 GB
  2. B
    400GB and 1.6 TB
  3. C
    1.6 TB and 3.2 TB
  4. D
    3.2 TB and 800 GB

Correct Answer:
A
Unity 500 FAST Cache is only supported by 200 GB and 400 GB SSD hard drives.
Reference:
http://www.emc.com/collateral/data-sheet/h14958-unity-hybrid-family-ss.pdf
(page 5)

Question #14
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

Correct Answer:
B
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 #15
On which systems is Quality of Service available?
  1. A
    Physical Unity systems only
  2. B
    UnityVSA systems only
  3. C
    Physical Unity and UnityVSA systems
  4. D
    All Flash Unity systems only

Correct Answer:
C
UnitVSA features Host I/O limits, also known as Quality of service.
The EMC [Physical] Unity array comes with a pack of new hardware and software features focusing on the true unification:
✑ Support for setting up Host I/O limits, also known as QOS, providing a more predictable performance for the workloads by putting limits on I/O throughputs and bandwidth
✑ DPE reduced from a 7U footprint to an innovative 2U footprint
✑ 12 GB SAS back-end for the Unity DAEs; EMC VNX/VNXe supported only 6 GB SAS backend
✑ Completely redesigned user interface based on HTML5
References:
http://www.presidio.com/blog/technical-summary-emc-unification-unity

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