EMC EMC Certifications E20-307 Questions & Answers

• Question 11:

  What is the basis for the allocation of new extends from a Storage Resource Pool (SRP) in a VMAX3 array?

  A. Data Pool RAID types and SRP capacity

  B. Data Pool Ranking and Service Level

  C. Data Pool RAID types and default Service Level

  D. Data Pool Ranking and SRP capacity

  Correct Answer: B

• Question 12:

  What are pre-configured in VMAX3 and VMAX All Flash arrays?

  A. SRDF devices

  B. Gatekeeper devices

  C. Thin devices

  D. Data devices

  Correct Answer: C

• Question 13:

  What does EMC Virtual Storage Integrator for VMware vSphere Web Client require to provision and manage storage from VMAX All Flash and VMAX3 arrays?

  A. EMC VMAX Storage Plug-in

  B. EMC VSS Provider

  C. EMC Unisphere for VMAX

  D. EMC SMI-S Provider

  Correct Answer: A

• Question 14:

  After installing Unisphere for VMAX, configuration activities are successfully performed on a VMAX3/VMAX All Flash array. However, performance data is not being collected. What must be done to collect the performance data?

  A. Unisphere for VMAX server must be rebooted

  B. System must be registered

  C. SMAS service must be started

  D. PostgreSQL database is corrupt and must be reinstalled

  Correct Answer: B

• Question 15:

  Which Database Management System(s) is used by Unisphere for VMAX v.8.3?

  A. Oracle

  B. PostgreSQL and MySQL

  C. MySQL only

  D. PostgreSQL only

  Correct Answer: D

  Reference

  https://learningcontent.emc.com/gatekeepercontent/cninv000000000124493/presentation_ content/external_files/Unisphere%20for%20VMAX%20IM%208.3_srg.pdf (page 4)

• Question 16:

  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/O 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. Tracks required for the copy will be allocated from the Reserved Capacity

  B. Copy to target will continue and complete

  C. Copy to target will fail

  D. Copy to target will halt

  Correct Answer: C

• Question 17:

  Data is written on a source track and the original data needs to be preserved for a snapshot. Which technology does TimeFinder SnapVX use to prevent a new from being demoted to a lower tier?

  A. NoCopy mode

  B. Copy mode

  C. Redirect-on-write

  D. Copy-on-write

  Correct Answer: C

  Reference

  https://www.google.com/url?sa=tandrct=jandq=andesrc=sandsource=webandcd=1andcad=rjaanduact=8andv ed=0ahUKEwjtwPmqw4jVAhVDNI8KHWAdCc8QFggnMAAandurl=https%3A%2F%2Flearnin gcontent.emc.com%2Fgatekeepercontent%

  2Fcninv000000000126123%2Fpresentation_co ntent%2Fexternal_files%2FVMAX%2520All%2520Flash%2520and%2520VMAX3%2520Lo cal%2520Replication%2520Fundamentals_srg.pdfandusg=AFQjCNHdxfEn- dqgkk5OCnYFBnPj6V-ylA

  (page 18)

• Question 18:

  Which Solutions Enabler environment variable can be set to stop the user from getting asked for confirmation during command execution?

  A. symcli_noprompt

  B. symcli_command_scope

  C. symcli_mode

  D. symcli_output_mode

  Correct Answer: A

  Reference https://www.emc.com/collateral/TechnicalDocument/docu46983.pdf (page 243)

• Question 19:

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

  A. R11

  B. R12

  C. R21

  D. R22

  Correct Answer: C

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

• Question 20:

  Which I/O module is used by VMAX3 eNAS systems to facilitate backup to tape?

  A. 2-port 10 GbE BaseT

  B. 2-port 10 GbE Optical

  C. 4-port 8 Gb FC

  D. 4-port 16 Gb FC

  Correct Answer: C

  Reference https://www.emc.com/collateral/technical-documentation/h13904-vmax3- embedded-nas-technical-note.pdf (page 8)