EMC E20-393 Online Practice Questions and Exam Preparation

EMC E20-393 Online Questions & Answers

• Question 131:

  Based on Dell EMC based practices, under what conditions would you consider creating multiple pools on a Unity 500?

  A. Separate resources for multi-tenancy Create larger failure domains
  B. Combine pools where FAST Cache is and is not active Consolidate resources for multi-tenancy
  C. Dedicate resources to meet specific performance goals Separate resources for multi-tenancy
  D. Combine pools where FAST Cache is and is not active Dedicate resources to meet specific performance goals
  C. Dedicate resources to meet specific performance goals Separate resources for multi-tenancy

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  References: https://www.emc.com/collateral/TechnicalDocument/docu69895.pdf

  (p.13)

• Question 132:

  What is the recommended configuration for iSCSI connections to ensure continuous access to the Dell EMC Unity XT storage system in the event of a failover?

  A. Create iSCSI interfaces on different network ports on the same SP that are combined into a link aggregation
  B. Set up iSCSI interfaces on the same port of each SP and leverage the host-based multi-pathing software
  C. Set up iSCSI interfaces on the same port of each SP and configure advanced static routes for the interfaces
  D. Create iSCSI interfaces on network ports on different SPs that are combined into a FSN logical device
  D. Create iSCSI interfaces on network ports on different SPs that are combined into a FSN logical device

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  Reference: https://www.dellemc.com/resources/en-us/asset/white-papers/products/storage/h15162-dell_emc_unity-high_availability.pdf

• Question 133:

  A system administrator experienced a power failure in their environment. To which device will cache de-stage?

  A. M.2 SSD on each Storage Processor
  B. First four disks in the Disk Processor Enclosure
  C. Cache does not need to de-stage as it is now non-volatile
  D. Backup Battery Unit will keep the data alive in cache
  A. M.2 SSD on each Storage Processor

• Question 134:

  Where can Unity Compression be enabled?

  A. All-Flash systems only
  B. All-Flash and 3-tier pools
  C. All-Flash pools only
  D. Thick LUNs only
  B. All-Flash and 3-tier pools

• Question 135:

  When creating a new LUN on a Dell EMC Unity array using Unisphere, what is the default setting of the Data Reduction feature?

  A. OFF for thick LUNs and ON for thin LUNs
  B. ON for thick LUNs and OFF for thin LUNs
  C. ON for thin LUNs in an All-Flash pool
  D. OFF for thin LUNs in an All-Flash pool
  D. OFF for thin LUNs in an All-Flash pool

• Question 136:

  A storage administrator configured a Hybrid Dell EMC Unity XT storage system using one default port containing three disk types. They need additional Flash capacity. What is the correct way to expand the pool?

  A. Add a RAID Group of SAS Flash 4 drives to the pool
  B. Add 2 SAS Flash drives to the FAST Cache
  C. Add 1 SAS Flash drive to the pool
  D. Add a RAID Group of SAS Flash drives to the pool
  A. Add a RAID Group of SAS Flash 4 drives to the pool

• Question 137:

  A storage administrator is tasked with creating a DR solution for block and file storage resources. The company has multiple regional and international sites containing a mix of physical and virtual Dell EMC Unity systems.

  What are considerations for the storage administrator in creating the DR solution?

  A. Synchronous remote replication should be restricted to within 100 km between sites to keep latency below 10 ms Block storage resources can be replicated synchronously and asynchronously
  B. Asynchronous replication ensures zero data loss the remote replica in disaster conditions Block storage resources can be replicated synchronously and asynchronously
  C. Asynchronous replication over long-distance does not impact latency Asynchronous replication ensures zero data loss to the remote replica in disaster conditions
  D. Synchronous remote replication should be restricted to within 100 km between sites to keep latency below 10 ms File and block storage resources can be replicated synchronously and asynchronously
  C. Asynchronous replication over long-distance does not impact latency Asynchronous replication ensures zero data loss to the remote replica in disaster conditions

• Question 138:

  Asynchronous remote replication is configured for a NAS Server and its associated file systems. What operations can be performed to make data available if the primary site goes down?

  A. Failover operation on the NAS Server session, then a Failover operation on each of the file system sessions
  B. Failover with Sync operation on each of the file system sessions, then a Failover with Sync operation on the NAS Server session.
  C. Failover operation on each of the file system session, then a Failover operation on the NAS Server session.
  D. Failover with Sync operation on the NAS Server session, then a Failover with Sync operation on each of the file system sessions.
  A. Failover operation on the NAS Server session, then a Failover operation on each of the file system sessions

• Question 139:

  DRAG DROP

  What is the correct order of steps to attach a snapshot to a host?

  Select and Place:

  

  

• Question 140:

  How can an administrator disable retention on an FLR-enabled file system?

  A. Use the File System Properties page in Unisphere
  B. Modify the FLR Policy on each file in the file system
  C. Modify the FLR Policy on the file system
  D. FLR cannot be disabled on this type of file system
  D. FLR cannot be disabled on this type of file system

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  Reference: https://www.dellemc.com/resources/en-us/asset/white-papers/products/storage/h17523-dell_emc_unity_file_level_retention_flr.pdf (6)