EMC Isilon Design Specialist Exam for Technology Architects : E20-554

E20-554 real exams

Exam Code: E20-554

Exam Name: Isilon Design Specialist Exam for Technology Architects

Updated: Aug 25, 2026

Q & A: 81 Questions and Answers

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EMC E20-554 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Isilon Architecture and Concepts25%- Node types and hardware platforms
- OneFS file system fundamentals
- Data protection and protection levels
- Scale-out NAS architecture
Topic 2: Capacity and Performance Design25%- SSD use cases and caching
- Capacity planning and sizing
- Performance requirements analysis
- SmartPools and tiering strategy
Topic 3: Features and Functionality20%- Deduplication, compression, and data efficiency
- SnapshotIQ, SyncIQ, SmartQuotas
- Multi-protocol access and identity management
- Security and authentication
Topic 4: Solution Design and Sizing10%- Cluster design best practices
- Scalability and expansion planning
- Workload analysis and requirements gathering
Topic 5: Network and Connectivity Design20%- Client access protocols (NFS, SMB, HTTP, HDFS)
- Bandwidth and redundancy planning
- SmartConnect configuration
- Network topology and protocols

EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. When conducting high-level interviews with stakeholders of a project, what are the key questions that should be asked?

A) Which backup application is in use today?
What is your change rate?
How many clients will connect to the cluster?
B) What does your network architecture look like?
Do you have existing NAS infrastructure?
Do you have 10Gb or 1Gb ethernet?
Which applications will access this storage?
C) How much usable storage are you looking for? What client OS will access this storage? Which applications will access this storage?
D) Who are the application owners?
How much usable storage is needed?
What applications will be accessing the storage?
How many users are in your Active Directory?


2. You set up a meeting to gather information on a new project with the IT manager and plan to use a workflow profile assessment (WPA) to document the requirements.
Why is it recommended to talk to as many stakeholders as possible?

A) Helps downstream personnel, such as implementation and delivery, to have a clearer understanding of the requirements.
B) Completing this document gives sales a list of who the stakeholders are at customer site.
C) Using the WPA tool will give you the best "big picture" to see things such as block size, de-dupe, file size and volumes.
D) Using workflow profile enables sales to take this information to EMC consulting for review to validate the configuration.


3. Which IsilonOneFS protection level allows you to withstand two drive failures but no more than one complete node failure?

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


4. Your customer has observed a degradation in response time while browsing for media files within the Production Media folder on the Isilon cluster. That directory now contains over five million files. It was confirmed that there are no network or edit station related causes.
What changes to the Isilon cluster will best accelerate the browsing performance?

A) Upgrade RAM on the nodes
B) Add an A-Series Performance Accelerator node
C) Add Solid State Drives (SSDs) to the nodes
D) Upgrade network interfaces on the nodes to 10 Gbps


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


Solutions:

Question # 1
Answer: C
Question # 2
Answer: A
Question # 3
Answer: D
Question # 4
Answer: C
Question # 5
Answer: C

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