EMC E20-393 Online Practice Questions and Exam Preparation

EMC E20-393 Online Questions & Answers

• Question 111:

  Assuming that there are 240 snapshots created for the Base LUN on a Dell EMC Unity XT array, what is the maximum number of Thin Clones that can be created from that Base LUN?

  A. 8
  B. 16
  C. 32
  D. 64
  D. 64

• Question 112:

  In Unisphere, where can a storage administrator create an asynchronous LUN replication session?

  A. LUN Properties window only
  B. Replication page only
  C. Replication page or the LUN Properties window
  D. LUN Creation wizard or the LUN Properties window
  A. LUN Properties window only

• Question 113:

  Dell EMC Unity systems collect several metrics at various time intervals and use ESRS to send the information to CloudIQ. What are those metrics and their time intervals?

  A. Alerts = 5 min Performance = 5 min Capacity = 1 hr Configuration = 1 hr
  B. Alerts = 2 min Performance = 1 hr Capacity = 1 hour Configuration = 1 hr
  C. Alerts = 5 min Performance = 1 hr Capacity = 2 hour Configuration = 1 hr
  D. Alerts = 2 min Performance = 30 min Capacity = 1 hr Configuration = 1 hr
  A. Alerts = 5 min Performance = 5 min Capacity = 1 hr Configuration = 1 hr

• Question 114:

  A storage administrator wants to configure a Unity system to join the list of arrays remotely monitored for activity and system status using Unisphere Central. The security policy on the Unisphere server was set to "automatic".

  What additional security information must be specified in the Unisphere Settings window to enable communication with Unisphere Central?

  A. Unisphere Central IP address and login credentials
  B. Unisphere Central IP address and Central Hash
  C. Unisphere Central Hash and login credentials
  D. Unisphere Central Hash and challenge phrase
  D. Unisphere Central Hash and challenge phrase

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  Configure the security policy to specify how storage systems are verified when connecting to Unisphere Central. Automatic verification automatically verifies storage systems when they connect to Unisphere Central using a preconfigured security certificate hash and passphrase.

  References: http://www.emc.com/collateral/white-papers/h13827-unisphere-central-v4-wp.pdf (page 21)

• Question 115:

  If each Storage Processor in a Unity storage array has two on-board CNA ports with a dual personality controller, which protocols are supported by these CNA ports?

  A. Fibre Channel at 2/4/8/16 Gb/s and iSCSI at 10 Gb/s.
  B. Fibre Channel at 4/8/16 Gb/s and iSCSI at 10 Gb/s.
  C. Fibre Channel at 4/8/16 Gb/s and FICON at 8 Gb/s.
  D. FCoE at 10 Gb/s and iSCSI at 10 Gb/s
  B. Fibre Channel at 4/8/16 Gb/s and iSCSI at 10 Gb/s.

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  References: https://www.emc.com/collateral/TechnicalDocument/docu69319.pdf

• Question 116:

  When configuring asynchronous remote replication, how many internal Unity Snapshots are configured and utilized on the source system by a single replication session?

  A. 1
  B. 2
  C. 3
  D. 4
  B. 2

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  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 117:

  

  Based on the exhibit, which port can provide either Fibre Channel or Ethernet connectivity for host access?

  A. A
  B. B
  C. C
  D. D
  D. D

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  Example:

  

  References: http://www.slideshare.net/USSCru/emc-unity-vnxvnx2-emc

• Question 118:

  A company has a VMware host installed with FC HBAs that is connected to a Dell EMC Unity XT storage array. A 500 GB LUN is provisioned to this host from the Unity array and is in production. The VMware administrator has configured a new vSwitch with the NICs on the server intended for iSCSI traffic. The storage administrator is asked to configure software iSCSI and provision a new 1 TB LUN from the storage array via iSCSI.

  What is a consideration when satisfying this request?

  A. A connection must be established between the host iSCSI initiators and Unity iSCSI targets before provisioning the new LUN
  B. Any single host should connect to any single array using one protocol only
  C. The iSCSI configuration must use all the NIC connections to the host
  D. Two iSCSI target interfaces must be configured with IP addresses from separate subnets
  D. Two iSCSI target interfaces must be configured with IP addresses from separate subnets

• Question 119:

  What is the result of enabling Data Reduction on a LUN in a Consistency Group containing three LUNs?

  A. All writes to all Consistency Group LUNs will go through the Data Reduction logic
  B. Any writes to the LUN will go through the Data Reduction logic
  C. Data Reduction will be enabled on all LUNs is the Consistency Group
  D. Data Reduction and Advanced Replication will be enabled on all LUNs
  C. Data Reduction will be enabled on all LUNs is the Consistency Group

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  Reference: https://www.dellemc.com/resources/en-us/asset/white-papers/products/storage/h16870-dell_emc_unity-data_reduction.pdf

• Question 120:

  What is a feature of Dell EMC UnityVSA systems?

  A. All storage pools are hybrid
  B. Data at Rest Encryption
  C. All storage pools are dynamic
  D. Asynchronous Replication
  B. Data at Rest Encryption