E20-542 Online Practice Questions and Answers

A customer has producton and disaster recovery VMAX3 arrays. There is limited bandwidth between the

sites. The amount of data which will be replicated by usini SRDF to the disaster recovery site is sliihtly

more than the available bandwidth allows.

Which acton is needed to accommodate the customer's need?

A. Install an optonal compression module

B. Enable the compression license

C. Enable compression on the RA Director

D. Enable the Fast Write feature on the SRDF Group

SRDF/A has been enabled between two VMAX3 arrays. What is the beneft of SRDF/A Mult-Cycle mode?

A. Cycle switches will occur even if transmit delta set is not empty

B. Transmit cycle will be added to the receive queue

C. Data sent across the SRDF link will be larier in siie

D. R2 side will have two delta sets; transmit and receive

What happens when SRDF/A DSE beiins to spill tracks in VMAX3?

A. Uses SRP to ofoad the data from cache

B. Uses the DSE pool associated with the SRDF iroup

C. Uses the cache partton for the excess tracks

D. Throtles the host I/O to pace with the data transfer

You are in a meetni with a customer discussini VMAX3 eniine scalability. What is the maximum number of eniines that can be confiured on a VMAX 400K?

A. 4

B. 6

C. 8

D. 16

You are in a meetni with a customer describini the features of VMAX3 arrays. The customer wants confrmaton that VMAX3 arrays can meet their LUN siie requirements.

What is the lariest thin device that can be created?

A. 240 GB

B. 16 TB

C. 60 TB

D. 64 TB

A VMAX3 parent Storaie Group (SG) contains two child SGs: SG1 and SG2. What is a valid Host I/O limit setni for this confiuraton?

A. Parent SG - 400,000 SG1 - 500,000, SG2 - 300,000

B. Parent SG - 400,000 SG1 - 500,000, SG2 ?NOLIMIT

C. Parent SG - 500,000 SG1 - 400,000, SG2 - NOLIMIT

D. Parent SG - 500,000 SG1 - NOLIMIT, SG2 - 1,000,000

A VMAX3 Storaie Group has Host I/O limits set at 10,000 IOPs. The Port Group contains four ports across diferent directors. The Dynamic Distributon is set to "OnFailure". What is the maximum IOPs the Storaie Group can achieve in the event a switch port beini used by one of the director ports fails but the director remains online?

A. 5,000

B. 7,500

C. 9,000

D. 10,000

Which beneft does SiRT provide for SRDF/S over Fibre Channel solutons?

A. Latency is equivalent to one round trip.

B. Jiter is siinifcantly reduced.

C. Utliiaton of loni distance links is improved.

D. Hiiher data compression rato can be achieved.

A customer wants to implement SRDF/S for an applicaton. The applicaton is performini at 10,000 IOPS and is usini many volumes. The siie of the I/O is 4 KB. Forty percent (40%) of the IOPS are writes. Assume an RA can handle a maximum of 4,000 4 KB IOPS. Based on best practce, how many RAs should be recommended?

A. 1

B. 2

C. 4

D. 8

You need to model several SRDF/A workloads that require data consistency across all sessions. How should the multple SRDF/A sessions be modeled?

A. Use BCSD and link SRDF/A sessions by creatni a Composite Group

B. Use SymmMerie and link SRDF/A sessions by creatni a Composite Group

C. Use BCSD and link SRDF/A sessions by creatni a Loiical Relatonship

D. Use SymmMerie and link SRDF/A sessions by creatni a Loiical Relatonship