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 101:

    A customer needs to consolidate 300 TB of home directory servers and shared file systems used by development and test groups. A key requirement is to prevent the systems from consuming all free capacity and impacting home directory content.

    Which Isilon node configuration should be proposed?

    A. X-Series with SmartQuotas
    B. NL-Series with SmartQuotas
    C. S-Series with InsightIQ
    D. X-Series with SmartPools

  • Question 102:

    Which block size is used by Isilon SyncIQ to transfer data?

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

  • Question 103:

    Which data access pattern uses moderate prefetching?

    A. Streaming
    B. Mirroring
    C. Random
    D. Concurrency

  • Question 104:

    What is appropriate for capturing packets for later analysis of I/O request sizes and randomness on Isilon clusters?

    A. Wireshark
    B. tcpdump
    C. iostat
    D. Mitrend

  • Question 105:

    Three jobs are running, all with a priority of 5. A new job with a priority of 6 needs to be run. What happens?

    A. The job engine pauses a priority 5 job and runs the new job until completion, then restarts the paused job from the point at which it was interrupted.
    B. The job engine runs the new job in parallel with the other jobs.
    C. The job engine pauses a priority 5 job and runs the new job until completion, then restarts the paused job from the beginning.
    D. The job engine queues the new job until one of the currently running jobs completes.

  • Question 106:

    A customer has two data centers (Site A and Site B) and in each data center there is an Isilon cluster. They are replicating data between the sites using SyncIQ.

    You have been reviewing their disaster recovery plan and found the following:

    The policies specify that SyncIQ runs a replication job every four hours and that the job finishes within one hour.

    Three additional hours will be needed to get servers and the network redirected to work from Site B.

    What is the Recovery Point Objective in this plan?

    A. 3 hours
    B. 4 hours
    C. 5 hours
    D. 6 hours

  • Question 107:

    A company currently has multiple fileservers to provide home directories for its employees. Each department has a separate fileserver. Most corporate users are on Windows clients and utilize Active Directory, except for the Engineering department, which uses Linux and NIS for authentication. The company is looking for a solution with minimal administrative overhead and a single namespace for the home directories.

    What is the recommended solution that will meet this company's requirements?

    A. Configure a single Isilon cluster and utilize Access Zones for authentication to Active Directory and NIS.
    B. Configure two separate clusters, one for Windows clients and the other for Linux.
    C. Utilize SmartPools to create two different FilePools, and separate Windows users from Linux users.
    D. Configure a single cluster, and migrate Linux users to Windows.

  • Question 108:

    In your second meeting with the customer you ask the following questions about their current unified SAN and NAS platform. "Are you using an application to map users from NFS Exports to SMB shares? Is each site a separate LDAP or AD Domain?" What functionality are your trying to understand in their environment and what is the comparable feature in Isilon OneFS?

    A. Identity Mapping and Authentication Sources
    B. User Management and AD Authentication
    C. Kerberos Infrastructure and Identity Management
    D. NFS Export Management and OneFS Cluster Management

  • Question 109:

    Which Isilon product is recommended where low-latency and maximum performance is a critical factor?

    A. X-Series
    B. S-Series
    C. SmartQuotas
    D. NL-Series

  • Question 110:

    A customer is looking for a NAS solution to support their read-intensive application.

    This solution must meet the following requirements: 1000 users Aggregate bandwidth of 5 GB/s 500 TB of user data Typical latency of 5 ms.

    The files are distributed evenly across 10 directories.

    Which cluster configuration would best meet these requirements?

    A. Seven X400 (108 TB) nodes with no SSD
    B. Eight NL400 (96 TB) nodes with 1.6 TB SSD
    C. Eight X400 (96 TB) nodes with 1.6 TB SSD
    D. Twenty-five X200 (30 TB) nodes with 800 GB SSD

Tips on How to Prepare for the Exams

Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only EMC exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your E20-555 exam preparations and EMC certification application, do not hesitate to visit our Vcedump.com to find your solutions here.