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 211:

    A customer needs to be able to periodically monitor their node live performance for ongoing operational tasks as well as during problem analysis. You have recommended they use the isi statistics command to fulfill this need. What types of statistics and statuses could be displayed with this command?

    A. Protocol status, drive statistics, hardware statistics, node statistics
    B. Node alerts, Job Engine statistics, hardware status, protocol statistics
    C. Node statistics, general status, drive status, hardware statistics
    D. Drive statistics, node status, protocol alerts, general performance

  • Question 212:

    While validating the value (VTV) with a large educational customer, they have decided they would like to add a Disaster Recovery (DR) site to their existing Isilon environment. The existing cluster contains six X-Series nodes. They plan to have all workflows replicated to the DR site and both clusters will have identical shares, exports, and user authentication. The customer would like to test DR failover every six months by running their production environment from the DR site.

    What would you recommend for the DR solution?

    A. SyncIQ and identical cluster at the DR site
    B. SmartConnect and NL-Series nodes at the primary site
    C. SyncIQ and NL-Series nodes at the DR site
    D. Equal number of S-Series nodes at the primary site

  • Question 213:

    When designing Isilon solutions, what issues should you pay special attention to?

    A. Avoid being too enthusiastic over the technology Balancing technical and business requirements Provide Options Design to meet customer expectations
    B. Workflow Document Solutions Document Application types Data strategy
    C. Solutions Document Balancing technical and business requirements Providing many options Practical vs. theoretical implementations
    D. Solutions Document Balancing technical and business requirements Downstream hand-off Design to meet customer expectations

  • Question 214:

    Your customer has an existing Isilon cluster with seven X200 nodes. The cluster is used to store home directories and departmental shared folders. They are planning to deploy a new application that generates small block, synchronous writes.

    Which OneFS 7 capability can help reduce latency for the new workload?

    A. Endurant Cache
    B. L2 Cache
    C. Solid State Drives
    D. Prefetcher

  • Question 215:

    A customer wants to replace a legacy storage environment used for high definition video editing. Each workstation connecting to the shared storage needs to sustain 650 MB/s of single stream bandwidth. Which node type is recommended?

    A. Performance Accelerator nodes
    B. NL-Series nodes
    C. X-Series nodes
    D. S-Series nodes

  • Question 216:

    What determines the number of job engine workers assigned to a task?

    A. Job task
    B. Job priority
    C. Job impact policy
    D. Job phase

  • Question 217:

    Your customer's initial use case was Home Directories. They implemented the cluster with four 1Gbps ports and LACP. They are planning to expand their cluster to support their core file services. They plan to upgrade their network infrastructure to 10 GbE to facilitate this.

    What are two design impacts this change will have?

    A. Maximum performance is obtained by only using a single 10GbE interface per node. LACP and multiple links may be used to increase redundancy, but will not provide more overall performance to the system
    B. LACP and multiple links may be used to increase redundancy, but will not provide more overall performance to the system. FCoE should be considered for the External Network Ports on the nodes.
    C. Dual 10GbE ports on each node will enable throughput of 20Gbps. Only connect half of the nodes to the network.
    D. Maximum performance is obtained by only using a single 10GbE interface per node. Isilon can support up to 400MB/s per node

  • Question 218:

    An Isilon customer wants to have different snapshot policies and schedules on the same directory. Why is this possible on an Isilon cluster?

    A. SnapshotIQ snaps at the directory level rather than the volume level
    B. All snapshots are scheduled through the command line interface
    C. A third-party product is used by SnapshotIQ to create different schedules and policies on a directory
    D. SnapshotIQ snaps at the volume level rather than the directory level

  • Question 219:

    Which OneFS feature enables you to host multiple tenants from mutually untrusting AD authentication environments from the same DNS namespace?

    A. SmartConnect
    B. Groupnets
    C. SmartQuotas
    D. Acces Zones

  • Question 220:

    In an Isilon environment, which event will avoid Dynamic IP Address reallocation?

    A. Client is added to the cluster
    B. Failure of the back-end network
    C. Node reboot
    D. Cluster split

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