EMC EMC Certification E20-377 Questions & Answers

• Question 91:

  What is recommended before creating a TimeFinder/Mirror replica?

  A. Ensure that the production application using the source devices is shut down

  B. Ensure that all writes from the production application using the source devices are paused!

  C. Ensure that the BCVs are not being actively accessed

  D. Set the BCVs to a Not Ready state

  Correct Answer: C

• Question 92:

  How does Delta Set Extension help in an SRDF/A deployment?

  A. Reduces RPO

  B. Reduces the amount of required cache

  C. Improves response time

  D. Absorbs bursts of host writes

  Correct Answer: D

• Question 93:

  Which file contains the parameter that can change the default behavior of SYMCLI operations, and there control actions?

  A. SYMCLI options File

  B. SYMAPI Options File

  C. SYMCLI Command File

  D. SYMAPI Command File

  Correct Answer: B

• Question 94:

  In symmetric V-max series array running Enginuity 5874, which device is used as a pass-through device for Auto provisioning?

  A. VDEV

  B. VCM

  C. ACLX

  D. SFS

  Correct Answer: C

• Question 95:

  Open Replicator pull will be used to move data between a third party array and a Symmetrix V-Max array. What is recommended before starting the Open Replicator session?

  A. Ensure that the remote devices are Host read/write enabled

  B. Ensure that the control devices are Not Ready

  C. Ensure that the remote devices are Host inaccessible

  D. Ensure that the control devices are Write Disabled

  Correct Answer: C

• Question 96:

  Where is the volume Logix Database maintained starting with DMX-3?

  A. VCM gatekeeper

  B. Symmetrix logical Volume

  C. Symmetrix File System

  D. VCM database.

  Correct Answer: C

• Question 97:

  On the Symmetrix platform, which type of RAID protection ensures the best random write performance?

  A. RAID 1

  B. RAID S

  C. RAID 6

  D. RAID 5

  Correct Answer: A

• Question 98:

  Refer to the exhibit. A database server has its logs stored on a volume on the log source Symmetrix V-Max array and its data stored on a volume on the data source Symmetrix V-Max array. Both source Symmetrix V-Max array frames replicate data to the target Symmetrix V-Max array at the Remote site. There are two device groups that have been defined: One group for the data volume on the Symmetrix containing the data LUNs One group for the log volume on the Symmetrix containing the log LUNS What happens if the SRDF inks between the Symmetrix contain the data LUNs and the target Symmetrix were to fail?

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  A. The R2 data in the database remains consistent because Enginuity Consistency Assist (RDF-ECAJ technology would ensure data consistency).

  B. The data in the database becomes inconsistent at the Remote site.

  C. An SRDF failover would be initiated on all volumes and processing will automatically be switched over to the Remote site

  D. The R2 volumes in the Symmetrix V-Max containing the log LUNs would become write-disabled to the database server

  Correct Answer: C

• Question 99:

  One of the requirements, during an Open Replicator implementation is that production application should not be implemented by open Replication session. An analysis of the control Symmetrix showed that FA ports are currently 70% utilized. How should pace and ceiling be configured?

  A. Pace should be set to 0 and Ceiling should be left at the default

  B. Pace should be left at the default and Ceiling set to 30

  C. Pace should be left at the default and Ceiling set to 100

  D. Pace should be set to 9 and Ceiling should be set to 70

  Correct Answer: B

• Question 100:

  An SRDF failover has been executed during the testing phase of an implementation. What is the expected status of the R1 and R2 devices after performing SRDF failover operation?

  A. R1 and R2 Not Ready

  B. R1 Wnte Disabled; R2 Read/Wnte

  C. R1 Read/Wnte, R2 Read/Wnte

  D. R1 Read/Wnte. R2 Wnte Disabled

  Correct Answer: B