EMC E20-507 Online Practice Questions and Exam Preparation

EMC E20-507 Online Questions & Answers

• Question 121:

  A storage administrator needs to provision new storage to a production SRDF/A group. Before moving new SRDF pairs to an active SRDF/A session, what should the SRDF pair state be for the new devices?

  A. Suspended
  B. Consistent
  C. SyncInProg
  D. Synchronized
  A. Suspended

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  Reference: http://richgoldstein.net/content/emc/srdf_intro

• Question 122:

  What is a consideration when linking a TimeFinder SnapVX snapshot to a target Storage Group (SG) in Unisphere for VMAX?

  A. Target SG should not be in a Masking View
  B. Target SG should be in a Masking View
  C. Target SG should not be managed by the Optimized SLO
  D. Target SG should be managed by the Optimized SLO
  B. Target SG should be in a Masking View

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  The target storage groups contain the linked-target devices of Production's snapshots. They should be added to a masking view to make the target devices accessible to the mount host. Reference: http://www.emc.com/collateral/white-papers/h14273-vmax3-timefinder-snapvx-microsoft-sql-server.pdf

• Question 123:

  The Reserved Capacity for a Storage Resource Pool (SRP) on a VMAX3 has been set to 15%. A TimeFinder SnapVX snapshot has been created for a Storage Group containing 10 devices. An application is actively performing read and write

  I/Os to these devices. Allocation for the SRP reaches 85%.

  What will happen to the snapshot?

  A. Snapshot will fail
  B. Snapshot deltas will be allocated from the Reserved Capacity
  C. Snapshot will persist but new snapshot deltas cannot be created
  D. Snapshot will terminate
  A. Snapshot will fail

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  Reference: http://ireland.emc.com/collateral/TechnicalDocument/docu68926.pdf

• Question 124:

  Which SRDF/A feature provides increased replication resiliency from temporary spikes in write workloads or link loss?

  A. Delta Set Extension
  B. SRDF FAST Coordination
  C. Multi-Session Consistency
  D. Software Compression
  A. Delta Set Extension

• Question 125:

  The Reserved Capacity for a Storage Resource Pool (SRP) on a VMAX3 has been set to 15%. A TimeFinder SnapVX snapshot has been created for a Storage Group containing 10 devices. An application is actively performing read and write

  I/Os to these devices. The snapshot is linked to the target in Copy mode. Allocation for the SRP reaches 85%.

  What will happen to the copy process?

  A. Copy to target will halt
  B. Copy to target will fail
  C. Tracks required for the copy will be allocated from the Reserved Capacity
  D. Copy to target will continue and complete
  B. Copy to target will fail

• Question 126:

  What is the default port number to access the EMC vApp Manager for Solutions Enabler?

  A. 443
  B. 5480
  C. 8080
  D. 8443
  B. 5480

• Question 127:

  What would the RDF device and Link states be after an SRDF Establish operation?

  A. R1=RW; Link=RW; R2=WD
  B. R1=WD; Link=NR; R2= RW
  C. R1=RW; Link=NR; R2=RW
  D. R1=RW; Link=NR; R2=WD
  A. R1=RW; Link=RW; R2=WD

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  Reference: http://richgoldstein.net/content/emc/srdf_intro (see the table)

• Question 128:

  A TimeFinder SnapVX snapshot of a Storage Group was created with a time-to-live setting of seven days. Fourteen days after snapshot creation, a query shows that the snapshot still exists. What is a possible reason?

  A. Reserved Capacity limit was exceeded
  B. Snapshot was not manually terminated
  C. Snapshot was created in NoCopy mode
  D. Snapshot has one or more linked targets
  D. Snapshot has one or more linked targets

• Question 129:

  Which type of RDF devices are used in Cascaded SRDF environments?

  A. R11
  B. R12
  C. R21
  D. R22
  C. R21

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  Reference https://storageengineer.blogspot.com/2013/06/srdf-devices.html

• Question 130:

  Where is data compression enabled on a VMAX All Flash array?

  A. Storage Group
  B. Thin devices
  C. Data Pool
  D. Disk Group
  A. Storage Group

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  Reference https://www.emc.com/collateral/white-papers/h15393-vmax-all-flash-adaptive-compression-engine.pdf (Page 4)