EMC E20-393 Online Practice Questions and Exam Preparation

EMC E20-393 Online Questions & Answers

• Question 121:

  What benefit does the Dell EMC Unity XT UEMCLI tool provide compared to the Unisphere GUI?

  A. Enables users to automate routine tasks using commands
  B. Discovering a new Dell EMC Unity array and setting up its management IP address
  C. Configuring and monitoring a Dell EMC Unity XT storage system using puTTY
  D. Enables users to run REST API calls for complex Unity deployments
  A. Enables users to automate routine tasks using commands

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  Reference: https://www.dellemc.com/en-us/collaterals/unauth/white-papers/products/storage/h17827-dell-emc-unity-operating-environment.pdf (12)

• Question 122:

  What describes the Cutover operation for a File Import session?

  A. Client access to data is switched to the target Unity system and the session can be rolled back if Canceled.
  B. Production data access is from Unity but the clients still connect to the interface of the VNX.
  C. Production data access is permanently set on Unity and the original data is deleted from VNX.
  D. Client access to data is switched to the target Unity system and the session cannot be rolled back or Canceled.
  A. Client access to data is switched to the target Unity system and the session can be rolled back if Canceled.

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  References: https://www.emc.com/collateral/white-papers/h15163-dell-emc-unity-migration-technologies.pdf

• Question 123:

  Refer to the exhibit.

  

  What is a possible reason for the health score of 70 that is associated with the Test_Dev storage pool?

  A. Data protection for this storage pool is not configured
  B. Storage pool is full and oversubscribed, and needs attention
  C. Storage pool performance is impacted because of prolonged disk queue length
  D. Storage pool has a component failure and needs attention
  C. Storage pool performance is impacted because of prolonged disk queue length

• Question 124:

  DRAG DROP

  The cache has sent data to the Data Reduction logic during proactive cleaning or flushing. What is the correct sequence of steps taken by the Data Reduction logic?

  Select and Place:

  

  

• Question 125:

  What describes multiple LUN snapshots?

  A. Captures multiple point-in-time data states. Snapshot data state is marked "unmodified" from its source when attached. Snapshot tree supports multiple simultaneous attaches.
  B. Captures multiple point-in-time data states. Snapshot data state is marked "unmodified" from its source when attached. Snapshot tree supports only one attach at a time.
  C. Captures multiple point-in-time data states. Snapshot data state is marked "modified" from its source when attached. Snapshot tree supports multiple simultaneous attaches.
  D. Captures multiple point-in-time data states. Snapshot data state is marked "modified" from its source when attached. Snapshot tree supports only one attach at a time.
  D. Captures multiple point-in-time data states. Snapshot data state is marked "modified" from its source when attached. Snapshot tree supports only one attach at a time.

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  Only a single snapshot per LUN can be attached at any given time, and must be detached prior to attaching another snapshot of the same LUN.

  

• Question 126:

  What is a characteristic of the iSCSI interface on Dell EMC Unity storage arrays?

  A. IQN aliases can be created optionally after the iSCSI interface is created.
  B. IQN aliases are associated with an iSCSI interface.
  C. IQNs are associated with a network port.
  D. An iSCSI interface can be created with both an IPv4 and IPv6 IP address.
  C. IQNs are associated with a network port.

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  Reference: https://www.emc.com/collateral/TechnicalDocument/docu88302.pdf (11)

• Question 127:

  A Storage administrator needs to expand their FAST Cache. The current configuration consists of four 200 GB SAS Flash 2 drives.

  What can be used to expand the FAST Cache?

  A. Two 200 GB SAS Flash 2 drives
  B. Two 400 GB SAS Flash 2 drives
  C. Two 200 GB SAS Flash 3 drives
  D. Two 400 GB SAS Flash 3 drives
  A. Two 200 GB SAS Flash 2 drives

• Question 128:

  A system administrator receives a warning that their DPE I/O Module has a fault. In this situation, which type of replacement is required?

  A. Hot-pluggable CRU
  B. Non-Hot-pluggable FRU
  C. Hot-pluggable FRU
  D. Non-Hot-pluggable CRU
  C. Hot-pluggable FRU

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  Your storage system is designed to be powered on continuously. Most components are hot swappable; that is, you can replace or install these components while the storage system is running.

• Question 129:

  What are characteristics of the LUN Snapshot Copy operation?

  A. Parent cannot be a snapshot copy Can only copy a detached snapshot Has an independent Retention Policy from the parent
  B. Parent can be a snapshot copy Can only copy a detached snapshot Has an independent Retention Policy from the parent
  C. Parent can be a snapshot copy Can copy an attached or detached snapshot Inherits the parent Snapshot Retention Policy
  D. Parent cannot be a snapshot copy Can copy an attached or detached snapshot Inherits the parent Snapshot Retention Policy
  D. Parent cannot be a snapshot copy Can copy an attached or detached snapshot Inherits the parent Snapshot Retention Policy

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  The Snapshot Copy operation will make a copy of an existing snapshot that is either attached or detached from a host. The copy will capture the existing data state of the snapshot it copies. In this Copy example, a copy of an existing 4 o clock snapshot is being made. The copy inherits the parent snapshot data state of 4 o clock and its retention policy

• Question 130:

  Which technology is used by Unity Snapshots?

  A. Copy on First Write
  B. Inline Deduplication
  C. Redirect on Write
  D. Block Compression
  C. Redirect on Write

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