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 151:

    A company needs to have their data asynchronously replicated. They also need to maintain a daily copy of the data for a week at the target side to enable fast recovery of files. They decide to purchase two Isilon clusters. They do not want to spend money unnecessarily. Which licenses must they acquire?

    A. SyncIQ license at source and target clusters. SnapshotIQ license at source and target clusters.
    B. SyncIQ license at source cluster only. SnapshotIQ license at source cluster only.
    C. SyncIQ license at target cluster only. SnapshotIQ license at target cluster only.
    D. SyncIQ license at source and target clusters. SnapshotIQ license at target cluster only.

  • Question 152:

    A customer wants to perform complete failover and failback testing on their production SyncIQ policies. What are the first two recommended steps to ensure a successful test?

    A. Quisce writes to source Perform final sync
    B. Allow writes to source Perform final sync
    C. Allow writes to source Immediately failover and failback
    D. Quiesce writes to source Immediately failover and failback

  • Question 153:

    Where does Endurant Cache stage its write cache?

    A. SSD
    B. DISK
    C. NVRAM
    D. DRAM

  • Question 154:

    A customer created one month of snapshots; one snapshot every 8 hours for 30 days on an Isilon cluster using SnapshotIQ. They are now deleting the snapshots randomly and experiencing overhead to the cluster. How can the snapshots be removed while avoiding the overhead caused by this process?

    A. Delete the snapshots in order
    B. Use SmartPools to move the snapshot data to a different tier
    C. Snapshots cannot be deleted
    D. Remove the directory

  • Question 155:

    A company has purchased an Isilon cluster. The storage administrator knows they will have a large number of clients with similar workloads connecting to the cluster through NFS, and connections will be maintained for a long time. Which two connection balancing policies should be recommended for initial use? (Choose two.)

    A. Round Robin and Connection Count
    B. CPU Utilization and Network Throughput
    C. Round Robin and CPU Utilization
    D. Connection Count and Network Throughput

  • Question 156:

    An Isilon has 6 X410 nodes and 4 NL410 nodes. How many job engine directors does the cluster have?

    A. 4
    B. 6
    C. 10
    D. 20

  • Question 157:

    A potential customer has about 540TB of NetApp running in ONTAP 7-Mode. They are willing to let you gather some workload data. They have LDAP and Active Directory authentication and primarily Windows Clients. They are very interested in Automated Tiering and Large Scale Archives. They are not certain about the workflows from the Marketing Department. The Content Team will only say they need to acquire 300 TB within 90 days. They do not know the average file size or the number of aggregates they are managing.

    Which tools would you use to gather information to do your Isilon sizing?

    A. MiTrend WPA, Autosupport, and PerfCollect
    B. isi status, isi_netlogger, and PerfMon
    C. Wireshark, isi statistics, and iostat
    D. Isilon Insight IQ, OnCommand Insight, and nfsstat

  • Question 158:

    When designing an Isilon cluster for content creation workflows in the Media and Entertainment (MandE) vertical, what type of workflows must you consider?

    A. Random access
    B. Batch
    C. Small file
    D. Sequential

  • Question 159:

    When planning a new cluster using backend leaf-spine topology, what is the maximum number of nodes supported when using two leaf switches and one spine switch?

    A. 32
    B. 44
    C. 66
    D. 144

  • Question 160:

    In an Isilon cluster, what is the largest number of nodes that a single file can be striped across?

    A. 10
    B. 20
    C. 30
    D. 40

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