EMC E20-393 Online Practice Questions and Exam Preparation

EMC E20-393 Online Questions & Answers

• Question 181:

  A Windows test server ran a stress test program that generated a large amount of throughput. This resulted in performance slowdowns on production hosts sharing the same VMFS datastore. What Dell EMC Unity XT feature can the storage administrator use to prevent a re-occurrence of this problem?

  A. Data Reduction
  B. FAST Cache
  C. File System Quotas
  D. Host I/O Limits
  C. File System Quotas

• Question 182:

  What is the default NFS host access option?

  A. No Access
  B. Read/Write, Allow Root
  C. Read-Only
  D. Read/Write
  B. Read/Write, Allow Root

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  Reference: https://www.emc.com/collateral/TechnicalDocument/docu69323.pdf (11)

• Question 183:

  A storage administrator notices that all the configured Host I/O Limit policies are Globally Paused. How can the administrator put these policies into the Active state?

  A. Select the Host I/O Limit policy for each and configure the Host I/O Limits setting to Active.
  B. From the Settings>Performance page, configure the Host I/O Limits settings to Resume.
  C. From the Settings> Performance page, configure the Host I/O Limits settings to Active.
  D. Select the Host I/O Limit policy for each and configure the Host I/O Limits setting to Resume.
  D. Select the Host I/O Limit policy for each and configure the Host I/O Limits setting to Resume.

• Question 184:

  Automatic shrink operations will trigger storage space reclamation on which type of storage resources?

  A. Thick file systems
  B. Thick LUNs
  C. Thin LUNs
  D. Thin file systems
  D. Thin file systems

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  Reference: https://www.emc.com/collateral/technical-documentation/docu91486-unity-family-release-notes.pdf (8)

• Question 185:

  Which quota policy calculates disk usage in 8 KB units?

  A. File Size
  B. Block
  C. User
  D. Directory Tree
  B. Block

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  Reference: https://www.dellemc.com/en-us/documentation/unity-family/unity-p-configure-smb-file-sharing/06-unity-smb-c-ch-managing-quotas.htm

• Question 186:

  After performing the initial configuration of a new UnityVSA, when do alerts concerning license expiration first occur?

  A. 7 days prior to expiration
  B. 15 days prior to expiration
  C. 1 month prior to expiration
  D. 2 months prior to expiration
  C. 1 month prior to expiration

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  References: https://www.emc.com/collateral/white-papers/h15092-dell-emc-unity-vsa.pdf

• Question 187:

  What is a benefit of Dell EMC Unity XT Series dynamic pools?

  A. Reduced time to rebuild a failed drive
  B. Improved access to data resident on the drive tiers
  C. Protects written data from deletion or modification
  D. Enables throughput and bandwidth throttling
  A. Reduced time to rebuild a failed drive

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  A pool type introduced in Dell EMC Unity OE version 4.2toprovide space to storage resources. Dynamic pools allow for flexible deployment models, and reduced rebuild times and flash wear compared to Traditional pools. A dynamic pool is created when creating a pool in Unisphere in Dell EMC Unity OE version 4.2 and later. Dynamic pools are only supported on Dell EMC Unity all-flash systems.

  Reference: https://www.dellemc.com/resources/en-us/asset/white-papers/products/storage/h16289-dell_emc_unity-dynamic_pools.pdf

• Question 188:

  Which information must be retrieved and used to select the unconfigured UnityVSA system when running the Auto-discover option of the Connection Utility?

  A. Array Name
  B. System's Serial ID
  C. DNS Host Name
  D. System's UUID
  B. System's Serial ID

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  Note: The Connection Utility can be use the Auto Discover option to discover the system and configure the system name, IPv4 management settings, and/or IPv6 management settings. References: https://www.emc.com/collateral/TechnicalDocument/docu69316.pdf

• Question 189:

  Which command can be issued from the vSphere client to configure an IP management address?

  A. svc_initialize_system
  B. svc_initialize_config
  C. svc_initial_system
  D. svc_initial_config
  D. svc_initial_config

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  Reference: https://www.dellemc.com/hr-hr/collaterals/unauth/technical-guides-support-information/products/storage/docu69316.pdf

• Question 190:

  When the LUN Snapshot Restore operation is performed, what does the Unity system automatically do before beginning the restoration process?

  A. Detaches the hosts from the snapshot
  B. Creates a copy of the snapshot
  C. Detaches the host from the LUN
  D. Creates a snapshot of the LUN
  B. Creates a copy of the snapshot