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Updated: Oct 16, 2026
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EMC E20-554 Exam Overview:
| Certification Vendor: | Dell Technologies (EMC) |
|---|---|
| Exam Name: | Isilon Design Specialist Exam for Technology Architects |
| Exam Number: | E20-554 |
| Exam Format: | Multiple choice |
| Available Languages: | English |
| Related Certifications: | Dell EMC Proven Professional Specialist Dell EMC Isilon-related certifications |
| Exam Duration: | 90 minutes |
| Sample Questions: | EMC E20-554 Sample Questions |
| Exam Way: | Online proctored exam via Dell Technologies certification platform |
| Pre Condition: | Recommended knowledge of Dell EMC Isilon systems and storage networking concepts |
| Official Syllabus URL: | https://education.dell.com |
EMC E20-554 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Protection and Availability | - Erasure coding and data protection schemes - Snapshots, replication, and backup integration |
| Solution Design Considerations | - Customer requirements analysis and sizing - Cluster design and scalability planning |
| Implementation and Troubleshooting | - Common issues and troubleshooting methods - Deployment planning and best practices |
| Isilon / OneFS Architecture Fundamentals | - OneFS operating system fundamentals - Scale-out NAS architecture concepts |
| Networking and Protocols | - NFS, SMB, and HDFS protocol support - Network architecture for Isilon clusters |
| Performance and Scalability | - Cluster scaling and workload distribution - Performance optimization techniques |
EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:
You are assisting a customer with creating an Isilon solution that will address their needs while remaining cost-effective. The customer environment consists entirely of archive data. The data in their enterprise produces very little I/O and is only occasionally accessed.
Which Isilon storage node type will meet the customer's needs?
- A. NL-Series node
- B. Performance Accelerator node
- C. X-Series node
- D. S-Series node
Correct Answer: B 🗳️
A cost-conscious customer is exploring Isilon for their PACS archive. The workflow consists of one hundred cases a day, each including fifty 60MB image files. However, each image will have five-hundred 64kB metadata files associated with it. They currently have six years worth of archived data. They will need to migrate to the new solution and they need to plan for an additional three years of archive capacity.
Which solution would you recommend to fit their capacity needs?
- A. 18 NL-Series nodes with N+2:1 protection policy providing 2078 TiB of useable capacity
- B. 24 NL-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity
- C. 12 NL-Series nodes with N+2 protection policy providing 1300 TiB of useable capacity
- D. 24 X-Series nodes with N+3 protection policy providing 2597 TiB of useable capacity
Correct Answer: B 🗳️
Which Isilon feature provides the ability to build a cluster using different node types and tiers to meet a customer's business objectives?
- A. SmartPools
- B. SmartConnect
- C. SnapshotIQ
- D. SmartQuota
Correct Answer: D 🗳️
Your customer is looking for a storage solution that will be able to store seven million 3 MB files which are written and seldom accessed. Read and write operations are both completed by a web-based application, which requires 1.3 Gbps throughput. The customer's network has not been upgraded in many years, so the network interfaces are 1 Gbps.
What would be the best solution for this network configuration?
- A. Bond EXT-0 across all nodes.
- B. Use LACP to aggregate the network ports on each node.
- C. Aggregate Infiniband (IB) ports across all nodes.
- D. Use jumbo frames to compensate for the 1GB Core network.
Correct Answer: B 🗳️
You meet a customer for the first time. They explain that their current environment for NAS does not meet their needs. You want to make sure that Isilon is a good fit for their needs.
What would be a good prequalifying question to ask?
- A. What application are you using to create directories?
- B. What protocols are accessing your NAS?
- C. Is your datacenter ISO9001 compliant?
- D. How many users are in your Directory Services?
Correct Answer: B 🗳️
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