Exam Details

  • Exam Code
    :E20-326
  • Exam Name
    :Symmetrix Solutions Design Exam
  • Certification
    :Technology Architect
  • Vendor
    :EMC
  • Total Questions
    :235 Q&As
  • Last Updated
    :Mar 09, 2025

EMC Technology Architect E20-326 Questions & Answers

  • Question 131:

    An SRDF/S implementation is being designed. The RA performance limits are 3800 4k IOPS for a Fibre RF adapter. The application is doing 6000 4k IOPS with 30% writes and uses multiple volumes. How many RAs are recommended?

    A. 2

    B. 1

    C. 4

    D. 6

  • Question 132:

    What is the impact on response time when multiple concurrent writes to an RDF device arrive from different FA ports on a Symmetrix VMAX?

    A. Concurrent SRDF/S writes will not help to improve response time.

    B. Writes can run in parallel and response time is slightly improved.

    C. Writes need to be finished before new writes arrive and negatively impacts response time.

    D. Response time is mostly determined by the application write behavior.

  • Question 133:

    When should customers implement SRDF/S solutions?

    A. When they cannot afford to lose any data

    B. When IO response time is very critical to applications.

    C. When high bandwidth is required by an application.

    D. When an array has and abundance of cache buffer.

  • Question 134:

    Which factors contribute to response time elongation in an SRDF/S environment?

    A. Write size, Distance and Network Equipment

    B. IOPS, Write size and Distance

    C. Write/s, Distance and Network Equipment

    D. Read/s, Write/s and IO size

  • Question 135:

    Using SRDF/S, In Enginuity 5772 and later, How many concurrent writes can a device receive?

    A. 6

    B. 16

    C. 2

    D. 8

  • Question 136:

    In Enginuity 5671 and earlier, how does SDRF/S behave when multiple writes to a device are received?

    A. Second write waits while first write is acknowledged.

    B. Third write waits while second write is acknowledged.

    C. 8 Concurrent writes are supported on a single device.

    D. 4 Concurrent writes are supported on a single device.

  • Question 137:

    A customer is using SRDF/S to replicate a Symmetrix VMAX at the production site to the VMAX at the DR site. The sites are connected using a dedicated T1 link and are 38 km apart. What will significantly improve the link service time between the 2 sites?

    A. Upgrade to a faster link.

    B. Decrease the number of RA ports.

    C. Adding cache to both VMAX arrays.

    D. Increase the priority of the high I/O applications on RA ports.

  • Question 138:

    You are designing an SRDF/S solution. The workload profile is:

    Total I/Os per second = 30000

    Write % = 20

    Read block size = 4 KB

    Write block size = 4 KB

    Network bandwidth can be purchased in increments of single OC3 (155 Mb/s) links. Data compression is not in use. How many OC3 links would you recommend?

    A. 1

    B. 2

    C. 3

    D. 4

  • Question 139:

    A customer needs to configure SRDF/S between two sites 10 km apart. The customer connected the R1

    ports to fabric-A at site 1 and the R2 ports to fabric-B at site 2. The customer does not want to merge the

    two fabrics between sites.

    What is the recommended solution?

    A. Implement FC routing or Virtual SAN to isolate the fabric

    B. Implement FCIP connection to isolate the fabric

    C. Merge two fabrics, and zone R1 and R2 ports.

    D. Connect the RDF ports using DWDM or SONET.

  • Question 140:

    You are designing a Symmetrix VMAX SRDF/S over Fibre Channel solution. The production and remote data centers are 50 kilometers apart. What is the expected write response time delay due to latency?

    A. 0.5 ms

    B. 0.25 ms

    C. 1 ms

    D. 2 ms

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