EMC EMC Certifications E20-307 Questions & Answers

• Question 21:

  A VMAX3 parent Storage Group (SG) contains two child SGs: SG1 and SG2. What is a valid bandwidth limit setting for this cascaded Storage Group?

  A. Parent SG

  Correct Answer: C

• Question 22:

  What is the maximum Reserved Capacity percentage that can be set for a VMAX All Flash Storage Resource Pool?

  A. 10

  B. 20

  C. 80

  D. 90

  Correct Answer: C

  Reference https://uk.emc.com/collateral/technical-documentation/docu55786-vmax3- service-level-pro-fully-automated-storage.pdf (p.27)

• Question 23:

  In addition to the Solutions Enabler Base daemon, which other daemon is also mandatory at installation?

  A. STP

  B. GNS

  C. SYMAPI Server

  D. Event

  Correct Answer: C

  Reference https://sort.veritas.com/public/documents/vom/6.0/windowsandunix/productguides/html/Add ons_Guide/apas02s02s02.htm

• Question 24:

  In a Unisphere for VMAX remote deployment, Unisphere cannot discover any storage arrays. What could be causing this issue?

  A. An FC configuration or SAN issue on or between the Unisphere client and the SYMAPI server may exist.

  B. An IP configuration or LAN issue on or between the Unisphere server and the SYMAPI server may exist.

  C. Unisphere server is not directly connected to a VMAX3.

  D. Unisphere client is not directly connected to a VMAX3.

  Correct Answer: A

• Question 25:

  What will happen if one or more source (R1) devices in an SRDF/Synchronous Consistency Group cannot propagate data to their corresponding target (R2) devices?

  A. SRDF/S replication will be suspended and a consistent data cleanup will be performed on the R2 targets

  B. Data propagation from the specific R1 devices to their corresponding R2 targets will be suspended

  C. Data propagation from all R1 devices in the Consistency Group to the R2 targets will be suspended

  D. All RDF device pairs in the Consistency Group will be set to Not Ready

  Correct Answer: C

  Reference https://community.aveksa.com/thread/223147

• Question 26:

  A company has two VMAX3 arrays, both are configured with eNAS. The company wants to make multiple copies of their file system volumes while using minimal additional space. Which EMC technology will meet the requirement without additional hardware?

  A. TimeFinder

  B. SnapSure

  C. SRDF

  D. Replicator

  Correct Answer: A

• Question 27:

  What is a requirement before a TDEV can be deleted on a VMAX3?

  A. TDEV must be unbound from the thin pool

  B. TDEV must be set to Not Ready

  C. TDEV must not have any allocated tracks

  D. TDEV must be disassociated from the SRP

  Correct Answer: B

  Explanation: References:

• Question 28:

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

  A. Storage Group

  B. Data Pool

  C. Thin devices

  D. Disk Group

  Correct Answer: A

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

• Question 29:

  VMAX3 devices 00011 through 00014 are 100 GB in size. What will the size of the devices be after the symdev modify –devs 00011:00014 –cap 400 –captype gb –tdev SYMCLI command is executed?

  A. 200 GB

  B. 400 GB

  C. 500 GB

  D. 1600 GB

  Correct Answer: A

• Question 30:

  Please enter your Powerlink Username below. If you do not have a Powerlink Username or do not know your Powerlink Username enter none. Powerlink Username:

  A. Varies

  Correct Answer: A