EMC E20-542 Actual Free Exam Questions & Community Discussion

Exam Code/Number: E20-542
Exam Name/Title: VMAX3 Solutions and Design Specialist Exam for Technology Architects
Certification Provider: EMC
Corresponding Certification: Technology Architect

Exam Questions: 140
Updated On: May 29, 2026

Question #9

What is the effect of SRDF/A enhancedgroup-level pacing on a VMAX3?

A. Host I/Os are sent as they are received.

B. Host-issued write I/Os are throttled for the group.

C. DSE pool is marked for data offload.

D. I/O on all host LUNs are throttled on the array.

Discussion 0

Correct Answer: B Vote an answer

Question #10

You are in a meeting with a customer describing the features of VMAX3 arrays. The customer wants to know more about VMAX3 configuration changes that can be performed with Unisphere for VMAX.
Which objects can be configured with Unisphere for VMAX?

A. Data Pools and Storage Resource Pools

B. Thin devices, Storage Resource Pools, and Masking Views

C. Thin devices and Autoprovisioning Groups

D. Disk Groups, Data Pools, and Autoprovisioning Groups

Discussion 0

Correct Answer: C Vote an answer

Question #11

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

A. Uses SRP to offload the data from cache

B. Uses the DSE pool associated with the SRDF group

C. Uses the cache partition for the excess tracks

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

Discussion 0

Correct Answer: A Vote an answer

Question #12

Where will TimeFinder SnapVX snapshot deltas be stored on a VMAX3 array?

A. Storage Resource Pool

B. Dedicated Target Device

C. Reserved LUN Pool

D. Array Cache

Discussion 0

Correct Answer: A Vote an answer

Question #13

A customer needs a new VMAX3 solution to include SRDF/A over GigE. You are in the process of sizing the VMAX3 array with VMAX Sizer. Which additional step is necessary to meet the requirements?

A. Size with the default constraints and then perform a "What if Analysis" to include SRDF GigE ports.

B. Define the constraints to include SRDF GigE I/O modules before sizing the scenario.

C. Size with the default constraints, export the XML file, and then edit the XML file to include SRDF GigE I/O modules.

D. Define the constraints to include SRDF GigE ports before sizing the scenario.

Discussion 0

Correct Answer: D Vote an answer

Question #14

After an SRDF failover operation, production work has been moved to the remote site. A large number of invalid tracks have accumulated that need to be synchronized back to the R1 volumes.
Which SRDF operation can reduce the re-synchronization time, while continuing production work on the remote site?

A. Failback

B. Update

C. Restore

D. Establish

Discussion 0

Correct Answer: B Vote an answer

Question #15

Based on best practice, when is a three-tier configuration recommended for a VMAX3?

A. Low write workload

B. High read workload

C. Low skew workload

D. High skew workload

Discussion 0

Correct Answer: C Vote an answer

Question #16

You are in the process of sizing a new VMAX3 solution. One of the workloads will be replicated with TimeFinder SnapVX.
Workload Details: Capacity = 10000 GiB IOPS = 400 Change Rate = 25% Mounted Snaps = 2 Mounted Copy IOPS = 20
How much additional capacity will the VMAX Sizer account for with this workload due to SnapVX?

A. 3000 GiB

B. 10000 GiB

C. 2500 GiB

D. 2000 GiB

Discussion 0

Correct Answer: C Vote an answer

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