E20-555 Exam Details

  • Exam Code
    :E20-555
  • Exam Name
    :Isilon Solutions and Design Specialist for Technology Architects
  • Certification
    :EMC Certifications
  • Vendor
    :EMC
  • Total Questions
    :344 Q&As
  • Last Updated
    :Jul 08, 2026

EMC E20-555 Online Questions & Answers

  • Question 301:

    How are files smaller than 128 KB protected?

    A. 3x mirrored
    B. N+3d:1n
    C. N+2d:1n
    D. 2x mirrored

  • Question 302:

    When using an N+2:1 protection policy on a 7-node Isilon cluster, how much capacity will be used to store a 510 KiB file?

    A. 638 KiB
    B. 640 KiB
    C. 766 KiB
    D. 768 KiB

  • Question 303:

    A system administrator has identified a problem on the cluster and has opened a service request on support.emc.com. They initiate isi_gather_info but it is taking a long time to complete. What can they do to speed up the completion of isi_gather_info for the next run?

    A. Collect the required logs from the syslog server
    B. Restart the CELOG daemon
    C. Increase the speed of the network link
    D. Exclude the specified tool(s) from being gathered

  • Question 304:

    Which Isilon OneFS protection level allows you to withstand two drive failures but no more than one complete node failure?

    A. N+1
    B. N+2
    C. N+2:1
    D. N+3:1

  • Question 305:

    A customer requires a backup to tape of their Isilon cluster. They want advice on whether to implement a two-way NDMP solution or a three-way solution. The front-end network must be used to stream data to the backup solution. Which cost-effective solution will meet their needs?

    A. Two-way including a Backup Accelerator
    B. Three-way without a Backup Accelerator
    C. Three-way including a Backup Accelerator
    D. Two-way without a Backup Accelerator

  • Question 306:

    A customer configures a file pool policy to write data to tier 2 on the Isilon cluster. This is in addition to the 30 policies already created. Later in the week they check the file placement and see that it has not been written to the correct tire. What could be the problem?

    A. Number of allowable policies has been exceeded so the new policy will not run.
    B. File matches a policy for a different tier that is listed higher in the file pool policy list.
    C. SmartPools policy job has not yet run so the file was written using the default policy.
    D. File matches a policy for a different tier that is listed lower in the file pool policy list

  • Question 307:

    Which block size does Isilon SyncIQ use to transfer data?

    A. 2 KB
    B. 4 KB
    C. 6 KB
    D. 8 KB

  • Question 308:

    Your customer is moving from a Restaurant/Bar business model to a Restaurant/Casino business model. You are helping architect the upgrade of a current 4-node X200 48 TB Isilon cluster, with 50% utilized for their video surveillance operations.

    They want to upgrade from 15 FPS (NTSC) in H.264 codec, with a 15 days retention policy to 30 FPS (NTSC) in H.264 codec, with a 30 days retention policy.

    How many nodes of the same type will you need to add in order to meet the required changes and not exceed 70% raw capacity?

    A. 8 nodes
    B. 4 nodes
    C. 12 nodes
    D. 16 nodes

  • Question 309:

    A customer has installed an Isilon Gen 6 cluster as a Proof of Concept. Before making a purchase decision, they would like to compare the performance of the Isilon to competitive offerings. Which tool can be used to provide data analysis and benchmarking through existing workflows?

    A. Wireshark
    B. ClarityNow!
    C. IOZone
    D. lometer

  • Question 310:

    A customer wants to use their large Gen 6 Isilon cluster for ILM. All of their data is written to and read from a single file pool. They need to use multiple file pools, so slightly used data is stored on less expensive, large disks. Heavily used data is stored on a faster tier.

    What would satisfy the customer's needs?

    A. Configure SmartPools Advanced
    B. Add an A-series node with SmartPools license
    C. Enable FAST VP license on each node pair
    D. Install SmartPools license on the cluster

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